Free living nematodes as alternative prey for soil predatory mites: An interdisciplinary case study of conservation biological control
Publication date: Available online 10 February 2019Source: Biological ControlAuthor(s): L.H. Azevedo, L.G. Leite, J.G. Chacon-Orozco, M.F.P. Moreira, M.P. Ferreira, L.M.G. Cano, V. Borges, D. Rueda-Ramírez, G.J de Moraes, E. PalevskyAbstractSpecies of soil predatory mites feed on a diverse diet making them excellent biocontrol candidates for conservation biocontrol programs. Free-living nematodes (FLN) are commonly found in soils and serve as prey for many soil predatory mites, but as far as we know, have never been used as alternative prey to enhance the efficacy of soil predatory mites for conservation biological ...
Source: Biological Control - February 11, 2019 Category: Biology Source Type: research

Frequency of resistance alleles to Lysinibacillus sphaericus in a Culex quinquefasciatus population treated with a L. sphaericus/Bti biolarvicide
This study aimed to evaluate the effect of a L. sphaericus/Bti combined biolarvicide treatment on the frequency of three cqm1 resistance alleles in Cx. quinquefasciatus larvae from one subarea (SA2) compared to another (SA1) where only L. sphaericus was kept. Larvae collected before and during a two-year trial were subjected to bioassays and PCR assays. Susceptibility to L. sphaericus showed oscillations in both areas, but no significant alterations of the lethal concentrations were detected. The pre-trial frequency of the resistance alleles was 0.057, while during the trial, the mean frequency was significantly lower in S...
Source: Biological Control - February 11, 2019 Category: Biology Source Type: research

Spatial and seasonal distribution of egg parasitoids of the sharpshooter tapajosa rubromarginata (Hemiptera: Cicadellidae: Proconiini) On feral johnson grass and commercial citrus host in argentina
Publication date: Available online 8 February 2019Source: Biological ControlAuthor(s): Eduardo G. Virla, Guido A. Van Nieuwenhove, Florencia Palottini, Serguei V. Triapitsyn, Guillermo A. LogarzoAbstractHymenopterous egg parasitoids are considered promising biocontrol agents against insect vectors of the bacterium Xylella fastidiosa Wells. We studied the spatial and seasonal occurrence of the egg parasitoid guild of the sharpshooter Tapajosa rubromarginata (Signoret) (Hemiptera: Cicadellidae: Proconiini), a known vector of X. fastidiosa, in a commercial lemon orchard in Tucumán Province, Argentina. Egg masses of T. ...
Source: Biological Control - February 9, 2019 Category: Biology Source Type: research

Conceptualizing, categorizing and recording the outcomes of biological control of invasive plant species, at a population level
Publication date: Available online 8 February 2019Source: Biological ControlAuthor(s): John H. Hoffmann, V. Cliff Moran, Martin P. HillAbstractRates of establishment of agents, their population dynamics after release, and measures of the damage they inflict on their target hosts are all useful indicators of progress and success in weed biological control but cannot account for the overall degree and extent of weed biocontrol achievements (i.e. outcomes) at a plant population level. Current conventions that describe weed biocontrol outcomes as ‘negligible’, ‘partial’, ‘substantial’ or &ls...
Source: Biological Control - February 8, 2019 Category: Biology Source Type: research

Editorial Board
Publication date: April 2019Source: Biological Control, Volume 131Author(s): (Source: Biological Control)
Source: Biological Control - February 8, 2019 Category: Biology Source Type: research

Biocontrol activities of metal-tolerant endophytes against Ganoderma boninense in oil palm seedlings cultivated under metal stress
Publication date: Available online 5 February 2019Source: Biological ControlAuthor(s): Carrie Siew Fang Sim, Yuen Lin Cheow, Si Ling Ng, Adeline Su Yien TingAbstractTwo metal-tolerant endophytes (Diaporthe miriciae LF9 and Trichoderma asperellum LF11) were studied in vitro for antifungal activities using dual culture assay. Both isolates inhibited Ganoderma boninense (GB) under metal and non-metal stress, with higher inhibition by T. asperellum LF11 than D. miriciae LF9. T. asperellum LF11 was unaffected by the metals, consistently inhibiting GB (100%) in both conditions. In contrast, inhibitory activities by D. miriciae L...
Source: Biological Control - February 6, 2019 Category: Biology Source Type: research

Life history traits of the coccinellids Scymnus subvillosus and S. interruptus on their prey Aphis spiraecola and A. gossypii: implications for biological control of aphids in clementine citrus
Publication date: Available online 5 February 2019Source: Biological ControlAuthor(s): J.P.R. Bouvet, A. Urbaneja, C. MonzoAbstractPredator-prey interactions are not static, but spatially and temporally dynamic. In addition to the climatic conditions and the prey density, the dynamics of predator populations may be influenced by the suitability of their diet. Therefore, to better understand aphid predator-prey relationships within food webs, it is necessary to know how their life history traits are affected by diet quality. In this research, under laboratory conditions, the suitability of the two most abundant aphid specie...
Source: Biological Control - February 6, 2019 Category: Biology Source Type: research

Effects of bean seed treatment by the entomopathogenic fungi Metarhizium robertsii and Beauveria bassiana on plant growth, spider mite populations and behavior of predatory mite
Publication date: Available online 6 February 2019Source: Biological ControlAuthor(s): Fernanda Canassa, Susanna Tall, Rafael A. Moral, Idemauro A.R. de Lara, Italo Delalibera, Nicolai V. MeylingAbstractThe fungal genera Metarhizium and Beauveria are considered as both entomopathogens and endophytes; they are able to colonize a wide variety of plants and can cause increased plant growth and protect plants against pests. In view of the need for new biological methods for plant protection and how promising and little studied candidates entomopathogens are, the aim of this research was to evaluate the potential of two isolate...
Source: Biological Control - February 6, 2019 Category: Biology Source Type: research

Innate and learned olfactory attraction to flowering plants by the parasitoid Cotesia rubecula (Marshall, 1885) (Hymenoptera: Braconidae): Potential impacts on conservation biological control
In this study we thus focused on the olfactory attractiveness of Fagopyrum esculentum Moench (Polygonaceae), Centaurea cyanus L. (Asteraceae) and Vicia sativa L. (Fabaceae) to Cotesia rubecula (Marshall, 1885) (Hymenoptera: Braconidae), a larval parasitoid of the cabbage pest Pieris rapae (Linnaeus, 1758) (Lepidoptera: Pieridae). With a Y-tube olfactometer we found that C. cyanus and to a lesser extent V. sativa successfully attract C. rubecula. Also F. esculentum attracts C. rubecula, but only after a rewarding feeding experience. All three tested flowers seem to be suitable to be exploited in conservation biological cont...
Source: Biological Control - February 5, 2019 Category: Biology Source Type: research

A biofertilizer with diazotrophic bacteria and a filamentous fungus increases Pinus pinaster tolerance to the pinewood nematode (Bursaphelenchus xylophilus)
Publication date: Available online 2 February 2019Source: Biological ControlAuthor(s): M. Nunes da Silva, M.E. Pintado, B. Sarmento, N.P. Stamford, M.W. VasconcelosAbstractThe pine wilt disease (PWD), caused by the pine wood nematode (PWN) Bursaphelenchus xylophilus, is a devastating illness that mainly affects P. pinaster trees, and that poses great environmental and economic challenges. Current disease management involves the cut down of infected trees, tree fumigation, use of nematicides, or the control of the insect vector; however, these methodologies are expensive, labour-intensive and have limited success. The aim o...
Source: Biological Control - February 3, 2019 Category: Biology Source Type: research

Molecular characterization of Hydrellia lagarosiphon, a leaf mining biological control agent for Lagarosiphon major, reveals weak variance across large geographic areas in South Africa
Publication date: Available online 30 January 2019Source: Biological ControlAuthor(s): Rosie Mangan, James C. Carolan, Jan-Robert BaarsGraphical abstract (Source: Biological Control)
Source: Biological Control - January 31, 2019 Category: Biology Source Type: research

Small-scale dispersal of a biological control agent – Implications for more effective releases
Publication date: Available online 31 January 2019Source: Biological ControlAuthor(s): Ashley B.C. Goode, Carey R. Minteer, Philip W. Tipping, Brittany K. Knowles, Ryann J. Valmonte, Jeremiah R. Foley, Lyn A. GettysAbstractEichhornia crassipes (Martius) Solms Laubach (Liliales: Pontederiaceae) was introduced to Florida in the 1880s as an ornamental and it once infested thousands of square kilometers across the state. Megamelus scutellaris Berg (Hemiptera: Delphacidae) was developed as a classical biological control agent for this plant primarily because its free-living life stages allow it to better integrate with herbicid...
Source: Biological Control - January 31, 2019 Category: Biology Source Type: research

Trehalose increases the oxidative stress tolerance and biocontrol efficacy of Candida oleophila in the microenvironment of pear wounds
Publication date: Available online 30 January 2019Source: Biological ControlAuthor(s): Xiaobao Nie, Changfeng Zhang, Changxing Jiang, Ruichang Zhang, Fengjun Guo, Xinguang FanAbstractHarvested fruit tissues produce reactive oxygen species (ROS) in response to wounding. ROS production is further elevated when biocontrol yeasts are introduced into the wounds, where they act as a bio-elicitor and this results in an environment in which the biocontrol yeast is subject to oxidative stress. In the present study, the effect of trehalose, a non-reducing disaccharide and a major reserve carbohydrate, on the level of oxidative stres...
Source: Biological Control - January 30, 2019 Category: Biology Source Type: research

The global diversity of Deladenus siricidicola in native and non-native populations
Publication date: Available online 28 January 2019Source: Biological ControlAuthor(s): Katrin N.E. Fitza, Jeff R. Garnas, Maria J. Lombardero, Matthew P. Ayres, Flora E. Krivak-Tetley, Rodrigo Ahumada, Brett P. Hurley, Michael J. Wingfield, Bernard SlippersAbstractThe nematode Deladenus siricidicola is the primary biological control agent of Sirex noctilio, a globally invading woodwasp pest of Pinus species. Preliminary studies on the diversity of populations of D. siricidicola revealed very low diversity in the Southern Hemisphere where they have been introduced for the purpose of biological control. The potential to augm...
Source: Biological Control - January 29, 2019 Category: Biology Source Type: research

Linking parasitoid nectar feeding and dispersal in conservation biological control
Publication date: Available online 28 January 2019Source: Biological ControlAuthor(s): George E. HeimpelAbstractThe nectar provision hypothesis posits that biological control by parasitoids can be enhanced by providing supplemental nectar in the vicinity of cropland. The rationale for this hypothesis is that parasitoid longevity and fecundity can be greatly enhanced by sugar meals and that many agricultural areas are devoid of naturally occurring sugar sources. While some experimental field studies have produced results supporting the nectar provision hypotheses, many others have failed to show that supplemental nectar can...
Source: Biological Control - January 28, 2019 Category: Biology Source Type: research

The efficacy of three seed-destroying Melanterius weevil species (Curculionidae) as biological control agents of invasive Australian Acacia trees (Fabaceae) in South Africa
Publication date: Available online 25 January 2019Source: Biological ControlAuthor(s): Fiona A.C. Impson, John H. HoffmannAbstractSince the mid-1980s, five species of seed-destroying Melanterius weevils have been used in South Africa as biological control agents against invasive Australian Acacia trees. Recorded levels of seed-destruction by the weevils are highly variable. To gain an understanding of these relationships, four years of observations on three chosen Melanterius/Acacia associations are reported that provide measures of: seed production; larval and pupal survival; adult weevil emergence-patterns and longevity;...
Source: Biological Control - January 26, 2019 Category: Biology Source Type: research

Editorial Board
Publication date: March 2019Source: Biological Control, Volume 130Author(s): (Source: Biological Control)
Source: Biological Control - January 25, 2019 Category: Biology Source Type: research

Acaricides compatibility with the armored scale predator Rhyzobius lophanthae
Publication date: Available online 24 January 2019Source: Biological ControlAuthor(s): Roy Kaspi, Reut Madar, Sylvia DomeradzkiAbstractRhyzobius lophanthae Blaisdell (Coleoptera: Coccinellidae) is an important worldwide predator of armored scale species in citrus orchards. Laboratory bioassays were performed to test the impact of acaricides, commonly used in citrus in general, and sulfur pesticides in particular, on acute mortality of R. lophanthae adults and larvae. The lethal toxicity of six acaricides to R. lophanthae (abamectin, spirodiclofen, fenbutatin oxide, summer oil, and two sulfur formulations) were evaluated. I...
Source: Biological Control - January 24, 2019 Category: Biology Source Type: research

Beauveria bassiana is a potential effective biological agent against Psoroptes ovis var. cuniculi mites
In this study, we evaluated the acaricidal efficacy of B. bassiana against Psoroptes ovis var. cuniculi, both in vitro and in vivo. Tests consistently showed that B. bassiana caused high mortality against P. ovis var. cuniculi in vitro with dose- and time-dependent susceptibility responses; applying 4.26×109 conidia/ml resulted in 100% mortality of P. ovis var. cuniculi within 9 days with an LT50 of 2.50. In vivo, rabbits infected with P. ovis var. cuniculi that were treated with 4.26×109 conidia/ml B. bassiana fungal suspension showed a 100% therapeutic response 3 days later, an efficacy greater than that of t...
Source: Biological Control - January 24, 2019 Category: Biology Source Type: research

Formulation of spore toxin complex of Bacillus thuringiensis and Lysinibacillus sphaericus grown under solid state fermentation
This study may contain simple, cost effective and efficient methods for preparation of mosquitocidal formulations of Ls and Bti mosquitocidal toxins produced under SSF technology. (Source: Biological Control)
Source: Biological Control - January 24, 2019 Category: Biology Source Type: research

Innate and learned olfactory preferences to flowering plants by the parasitoid Cotesia rubecula (Marshall, 1885) (Hymenoptera: Braconidae): potential impacts on conservation biological control
In this study we thus focused on the olfactory attractiveness of Fagopyrum esculentum Moench (Polygonaceae), Centaurea cyanus L. (Asteraceae) and Vicia sativa L. (Fabaceae) to Cotesia rubecula (Marshall, 1885) (Hymenoptera: Braconidae), a larval parasitoid of the cabbage pest Pieris rapae (Linnaeus, 1758) (Lepidoptera: Pieridae). With a Y-tube olfactometer we found that C. cyanus and to a lesser extent V. sativa successfully attract C. rubecula. Also F. esculentum attracts C. rubecula, but only after a rewarding feeding experience. All three tested flowers seem to be suitable to be exploited in conservation biological cont...
Source: Biological Control - January 24, 2019 Category: Biology Source Type: research

‘Tuning’ communication among four trophic levels of the root biome to facilitate biological control
Publication date: Available online 21 January 2019Source: Biological ControlAuthor(s): Lukasz L. Stelinski, Denis Willett, Monique J. Rivera, Jared G. AliAbstractPlants can facilitate attraction of herbivore predators and parasites with herbivore-induced volatiles (HIPVs). However, a central unknown of manipulating a natural environment is how the interactive effects of multiple plant stressors impacts belowground multi-trophic interactions. Agricultural systems, while disturbed, are useful model systems for investigating the effects of multiple stressors on plants and their related interactions because of the redundancy o...
Source: Biological Control - January 22, 2019 Category: Biology Source Type: research

Microbial volatiles organic compounds control anthracnose (Colletotrichum lindemuthianum) in common bean (Phaseolus vulgaris L.)
In this study, we evaluated the in vitro and in vivo effect of Bacillus amylolicefaciens ALB629 and UFLA285 mVOCs on anthracnose (Colletotrichum lindemuthianum) control in common bean (Phaseolus vulgaris L.). ALB629 reduced C. lindemuthianum spore numbers (31%), while UFLA285 and ALB629 inhibited mycelial growth by 16 and 18%, respectively. Both bacterial volatiles controlled anthracnose in vivo (79-85%). The volatiles from UFLA285 and ALB629, identified as 3-methylbutanoic acid and 2-methylbutanoic acid, were toxic to the pathogen when applied individually or in combination, likely being the ones that play a role in commo...
Source: Biological Control - January 22, 2019 Category: Biology Source Type: research

Use of biocontrol agents as potential tools in the management of chestnut blight
Publication date: Available online 21 January 2019Source: Biological ControlAuthor(s): Sergio Murolo, Jonathan Concas, Gianfranco RomanazziAbstractCastanea sativa is a widespread and important multi-purpose tree in the Mediterranean area. Recently, intensive infestation of gall wasp decreased the production of chestnut, and makes the plants more susceptible to Cryphonectria parasitica, the causal agent of chestnut blight. Generally, biological control of chestnut blight is through natural spread or artificial release of hypovirulent strains of C. parasitica. However, this approach is not always successful. The aim here was...
Source: Biological Control - January 22, 2019 Category: Biology Source Type: research

Non-target effects of Metarhizium brunneum (BIPESCO 5/F 52) in soil show that this fungus varies between being compatible with, or moderately harmful to, four predatory arthropods
Publication date: Available online 8 January 2019Source: Biological ControlAuthor(s): A.G.C. de Azevedo, J. Eilenberg, B.M. Steinwender, L. SigsgaardAbstractBiological control with entomopathogenic fungi is a feasible option for regulation of pest insect populations. However, possible effects on beneficial arthropods must be considered. We assessed the non-target effects of the microbial biological control agent Metarhizium brunneum (isolate BIPESCO 5/F 52) applied in soil on four different predatory arthropods: the predatory mite Gaeolaelaps aculeifer (Canestrini), the predatory bug Orius majusculus (Reuter), the rove bee...
Source: Biological Control - January 9, 2019 Category: Biology Source Type: research

Mate choice in the parasitoid Lysiphlebus fabarum is conditioned by host species and influences progeny fitness
Publication date: Available online 4 January 2019Source: Biological ControlAuthor(s): Marzieh Astaraki, Arash Rasekh, Parviz Shishehbor, Hossein MahiAbstractWe used the aphid parasitoid wasp, Lysiphlebus fabarum (Hymenoptera: Braconidae) reared on host aphids Aphis fabae (Hemiptera: Aphididae) and Aphis gossypii to examine whether or not mating preference can be conditioned by the host species on which the wasps were reared. The effect of the parental hosts on the fitness of the progeny was also examined. The results revealed that male and female wasps reared on one host species preferred each other as mates than those ind...
Source: Biological Control - January 4, 2019 Category: Biology Source Type: research

Effects of host age and radiation dose in Diachasmimorpha longicaudata (Hymenoptera: Braconidae) mass-reared on Medfly larvae of the tsl Vienna 8 genetic sexing strain
Publication date: Available online 31 December 2018Source: Biological ControlAuthor(s): Lorena Suárez, María Josefina Buonocore Biancheri, Fernando Murúa, Mariana Bilbao, Melisa García, Jorge Cancino, Oscar Martín, Diego Molina, Osvaldo Laría, Sergio M. OvruskiAbstractAugmentative release of parasitoids against Ceratitis capitata (Weidemann) is currently at an early stage in Argentina. The success of this environment-friendly strategy depends on suitable mass-rearing procedures. The integration of radiation in the rearing process improves both mass production and handling of fruit ...
Source: Biological Control - January 1, 2019 Category: Biology Source Type: research

Basidiomycetes fungi as biocontrol agents against take-all disease of wheat
Publication date: Available online 31 December 2018Source: Biological ControlAuthor(s): Masumeh Gholami, Jahanshir Amini, Jafar Abdollahzadeh, Morahem AshengrophAbstractTake-all caused by Gaeumannomyces graminis var. tritici (Ggt) is one of the most important root and crown diseases of wheat. In this research, four basidiomycetes isolates as fungal endophytes were isolated from healthy cereal plants and were identified as Coprinopsis urticicola M2, Rhizoctonia endophytica M9, Rhizoctonia zeae M32 and Fomes fomentarius M40 based on phenotypic characteristics and molecular phylogenetic analysis of the ITS rDNA sequences (ITS...
Source: Biological Control - December 31, 2018 Category: Biology Source Type: research

Life table of the predator Alloeocranum biannulipes Montrouzier and Signoret (Hemiptera: Reduviidae) and a test of its ability to suppress populations of Dinoderus porcellus Lesne (Coleoptera: Bostrichidae) in stored yam chips
Publication date: Available online 30 December 2018Source: Biological ControlAuthor(s): Loko Yêyinou Laura Estelle, Dieudonné Martin Gavoedo, Toffa Joelle, Orobiyi Azize, Thomas-Odjo Agnés, Tamò ManueleAbstractStored yam chips are attacked by Dinoderus porcellus Lesne, which can cause significant losses. The predator Alloeocranum biannulipes Montr. and Sign. is a potential biological control agent of D. porcellus. The biology, predation and mating behaviour of A. biannulipes were investigated under laboratory conditions. Moreover, the regulatory effect of this predator on population dynamics of D...
Source: Biological Control - December 30, 2018 Category: Biology Source Type: research

Life history responses of Hippodamia variegata (Coleoptera: Coccinellidae) to changes in the nutritional content of its prey, Aphis gossypii (Hemiptera: Aphididae), mediated by nitrogen fertilization
Publication date: Available online 27 December 2018Source: Biological ControlAuthor(s): Afsane Hosseini, Mojtaba Hosseini, J.P. Michaud, Mehdi Modarres Awal, Mohammad GhadamyariAbstractThe nutritional suitability of prey is an important determinant of predator fitness that can have a cascade of effects on life history. We manipulated the quality of cucumber plants by fertilizing them with three rates of nitrogen, 110, 160 and 210 ppm N, representing low, medium and high levels of N fertilization, respectively. Colonies of Aphis gossypii Glover were reared on these plants and used as prey for Hippodamia variegata (Goeze) in...
Source: Biological Control - December 27, 2018 Category: Biology Source Type: research

Impact of the zoophytophagous predator Engytatus varians (Hemiptera: Miridae) on Bactericera cockerelli (Hemiptera: Triozidae) control
Publication date: Available online 22 December 2018Source: Biological ControlAuthor(s): Daniel Alberto Pérez-Aguilar, Ana Mabel Martínez, Elisa Viñuela, José Isaac Figueroa, Benjamín Gómez, Sinue Isabel Morales, Antonio Tapia, Samuel PinedaAbstractEngytatus varians (Distant) (Hemiptera: Miridae), a polyphagous predator that is widely distributed, has recently been documented as feeding on nymphs of the very detrimental pest of several solanaceous crops Bactericera cockerelli (Sulc.) (Hemiptera: Triozidae) for the first time in Mexico. The predation of this mirid was evaluated in a ...
Source: Biological Control - December 22, 2018 Category: Biology Source Type: research

History, current situation and challenges for conservation biological control
Publication date: Available online 22 December 2018Source: Biological ControlAuthor(s): Morgan W. Shields, Anne C. Johnson, Sunita Pandey, Ross Cullen, M. González- Chang, Steve D. Wratten, Geoff M. GurrAbstractMeeting the growing global demand for agricultural products requires the development and use of ecologically-based strategies that will allow sustainable intensification based on ecosystem services. An important component of this approach is conservation biological control. This approach encompasses a variety of management practices that protect natural enemy populations in the agro-ecosystem and enhance thei...
Source: Biological Control - December 22, 2018 Category: Biology Source Type: research

Interspecific exploitative competition between Harmonia axyridis and other coccinellids is stronger than intraspecific competition
Publication date: Available online 22 December 2018Source: Biological ControlAuthor(s): Tania Zaviezo, Antonio Onofre Soares, Audrey A. GrezAbstractThe invasion of Harmonia axyridis has had negative consequences on coccinellid assemblages, with a decline in abundance and diversity, but the coexistence of invasive and resident species may depend on the strength of intra- and interspecific exploitative competitive interactions. These antagonistic interactions have been scarcely studied in coccinellids. Through a laboratory study we assessed aphid consumption, weight gain and reproduction when the invasive Harmonia axyridis, ...
Source: Biological Control - December 22, 2018 Category: Biology Source Type: research

Ophelimus sp., a new invasive gall wasp of Eucalyptus globulus in Europe, escapes the parasitism by Closterocerus chamaeleon due to an asynchronous life cycle
Publication date: Available online 19 December 2018Source: Biological ControlAuthor(s): André Garcia, Hugo Gonçalves, Nicolas Borowiec, José Carlos Franco, Manuela BrancoAbstractOphelimus sp. (Hym: Eulophidae) is an Australian gall wasp newly found in Southern Europe forming galls on Eucalyptus globulus. A congeneric gall wasp O. maskelli, also established in the Mediterranean Basin, is currently controlled by the introduced parasitoid Closterocerus chamaeleon. To date, no parasitism was observed on Ophelimus sp. by C. chamaeleon. Here we analyze a possible escape from parasitism through an asynchronou...
Source: Biological Control - December 20, 2018 Category: Biology Source Type: research

Field parasitism and host specificity of Oobius primorskyensis (Hymenoptera: Encyrtidae), an egg parasitoid of the emerald ash borer (Coleoptera: Buprestidae) in the Russian Far East
Publication date: Available online 20 December 2018Source: Biological ControlAuthor(s): Jian J. Duan, Jonathan Schmude, Kristi Larson, Roger W. Fuester, Juli R. Gould, Michael D. UlyshenAbstractOobius primorskyensis Yao and Duan (Hymenoptera: Encyrtidae) is a recently described egg parasitoid of the emerald ash borer (EAB), Agrilus plannipennis Fairmaire, from the Russian Far East. To support the potential introduction of this new parasitoid for biocontrol of EAB in North America, we surveyed EAB eggs on infested green ash (Fraxinus pennsylvanica Marsh) trees in the Russian Far East and documented the rate of EAB egg paras...
Source: Biological Control - December 20, 2018 Category: Biology Source Type: research

Antifungal activities of metal-tolerant endophytes against Ganoderma boninense under the influence of metal stress
Publication date: Available online 14 December 2018Source: Biological ControlAuthor(s): Carrie Siew Fang Sim, Yuen Lin Cheow, Si Ling Ng, Adeline Su Yien TingAbstractFive endophytic fungal isolates (Bipolaris sp. LF7, Diaporthe miriciae LF9, Trichoderma asperellum LF11, Phomopsis asparagi LF15, Saccharicola bicolour LF22) were tested for their tolerance to various concentrations of Al3+, Cu2+, Pb2+, Zn2+ and Cd2+. All isolates exhibited Tolerance Index (TI) exceeding 1, suggesting growth stimulation of the endophytes under metal stress. The antifungal activities of the endophytes against Ganoderma boninense (GB) (via the p...
Source: Biological Control - December 15, 2018 Category: Biology Source Type: research

Herbivory by the biocontrol agent Lilioceris cheni suppresses propagule production and smothering ability of the invasive vine Dioscorea bulbifera
Publication date: Available online 13 December 2018Source: Biological ControlAuthor(s): Min B. Rayamajhi, Eric Rohrig, Jorge Leidi, Christopher Kerr, Eduardo Salcedo, Ryan Poffenberger, Melissa Smith, Ellen Lake, F. Allen Dray, Paul Pratt, Philip Tipping, Ted CenterAbstractExpanding populations of Dioscorea bulbifera, a trellising invasive vine of Afro-Asian provenance, have become widely established in the southeastern United States. Its clambering habit enables the weed to grow over, smother and displace native vegetation while producing vast quantities of vegetative propagules (bulbils) and reducing biodiversity of diff...
Source: Biological Control - December 13, 2018 Category: Biology Source Type: research

Potential competitive outcomes among three solitary larval endoparasitoids as candidate agents for classical biological control of Drosophila suzukii
This study first compared the developmental rates of early immature stages of the three parasitoids and then evaluated their potential interactions, including elimination of competitors in intrinsic competition, interspecific discrimination of previously parasitized hosts, and the outcomes of interspecific competition at three host densities (5, 15 or 30 host larvae). On average, L. japonica eggs hatched first, followed by A. japonica and then G. brasiliensis. All three species exhibited interspecific competition after egg hatch through physical combat or in some cases physiological suppression, with L. japonica out-compet...
Source: Biological Control - December 12, 2018 Category: Biology Source Type: research

Editorial Board
Publication date: February 2019Source: Biological Control, Volume 129Author(s): (Source: Biological Control)
Source: Biological Control - December 12, 2018 Category: Biology Source Type: research

Biocontrol efficiency of native plant growth promoting rhizobacteria against rhizome rot disease of turmeric
This study was intended to evaluate the biocontrol efficacy of rhizobacteria isolated from turmeric fields against fungal pathogens, which are associated with the rhizome rot of turmeric. The antagonistic potential of 157 rhizobacterial isolates obtained from the turmeric fields was assessed against seven rhizome rot fungal pathogens; namely, Rhizoctonia solani MML4001, Fusarium solani MML4002, Schizophyllum commune MML4003, Macrophomina phaseolina MML4004, Fusarium graminearum MML4005, Fusarium solani MML4006 and Fusarium solani MML4007. Sixteen rhizobacterial isolates exhibited consistent antagonistic activity against al...
Source: Biological Control - December 12, 2018 Category: Biology Source Type: research

Effects of host species and host age on biological parameters of Anagrus virlai (Hymenoptera: Mymaridae), an egg parasitoid of Dalbulus maidis (Hemiptera: Cicadellidae) and Peregrinus maidis (Hemiptera: Delphacidae)
Publication date: Available online 11 December 2018Source: Biological ControlAuthor(s): Jorge G. Hill, Erica Luft Albarracin, Maria V. Coll Araoz, Eduardo G. VirlaAbstractDalbulus maidis (DeLong) (Hemiptera: Cicadellidae) and Peregrinus maidis (Ashmead) (Hemiptera: Delphacidae) are important pests for maize production in America. Anagrus virlai Triapitsyn (Hymenoptera: Mymaridae) is a potential biological control agent for both hopper species. We provide information on the effects of size, age and host species on the time of development, parasitism and emergence, and morphometry of A. virlai. Additionally, we evaluate if A...
Source: Biological Control - December 11, 2018 Category: Biology Source Type: research

Searching for a needle in a haystack: where to survey for climatically-matched biological control agents for two grasses (Sporobolus spp.) invading Australia
Publication date: Available online 28 November 2018Source: Biological ControlAuthor(s): G.F. SuttonAbstractClimatic incompatibility between source and intended release sites of biological control agents is frequently cited as a limiting factor to their establishment and proliferation, and ultimately the successful control of a target weed. Climate matching techniques have been used to overcome this limitation by prioritising regions in the target weed’s native range to survey for climatically-matched control agents. However, climate matching has been criticised for not considering that climatically compatible regions...
Source: Biological Control - November 28, 2018 Category: Biology Source Type: research

Compatibility Interactions Between The Biocontrol Agent Penicillium frequentans Pf909 And Other Existing Strategies To Brown Rot Control
ConclusionsResults indicated that the most commercial chemical pesticides could be simultaneously applied with Pf909 in integrated pest control, but not B. amyloliquefaciens.Graphical abstract (Source: Biological Control)
Source: Biological Control - November 24, 2018 Category: Biology Source Type: research

Volatiles from aphid-infested plants attract adults of the multicolored Asian lady beetle Harmonia axyridis
In this study, we test the attractiveness of volatiles emanating from four different aphid × plant combinations to H. axyridis adults in a Y-tube olfactometer. More specifically, we expose host plants from various plant families as such: Artemisia lavandulaefolia (Asteraceae) with Macrosiphoniella artemisiae; Gossypium hirsutum (Malvaceae) with Aphis gossypii; Triticum aestivum (Poaceae) with Sitobion avenae and Schizaphis graminum; and Vicia faba (Fabaceae) with Megoura viciae. Next, using coupled gas chromatography - electroantennogram detection (GC-EAD), we identify the volatile compounds from aphid × plant ...
Source: Biological Control - November 24, 2018 Category: Biology Source Type: research

Larval prey selectivity of the lampeye killifish Aplocheilichthys spilauchen and its potential for mosquito biocontrol
Publication date: Available online 22 November 2018Source: Biological ControlAuthor(s): Isaac Okyere, Andreas A. Kudom, Pearl Sakyi-DjanAbstractPrey selectivity habit of a cyprinodontiform killifish, Aplocheilichthys spilauchen was investigated in the laboratory to assess its potential as a mosquito control agent. In three different experimental treatments, the fish was exposed to different proportions of mosquito and chironomid larvae. The extent of selection of a given food item was determined by Ivlev’s electivity or selectivity index. From the results, A. spilauchen fed equally on the mosquito and chironomid larv...
Source: Biological Control - November 24, 2018 Category: Biology Source Type: research

Host resistance to two parasitoids (Diptera: Tachinidae) helps explain a regional outbreak of novel Diatraea spp. stem borers (Lepidoptera: Crambidae) in Colombia sugarcane
Publication date: Available online 22 November 2018Source: Biological ControlAuthor(s): Viviana Marcela Aya, James Montoya-Lerma, Claudia Echeverri-Rubiano, J.P. Michaud, Germán VargasAbstractLydella minense and Billaea claripalpis (Diptera: Tachinidae) are important parasitoids used in augmentation biological control of sugarcane stem borers, Diatraea spp. (Lepidoptera: Crambidae), the primary pests of sugarcane in Colombia. Following the recent discovery of two new Diatraea species in the Cauca River Valley (CRV), D. tabernella and D. busckella, stalk-boring damage to sugarcane has increased and rates of larval pa...
Source: Biological Control - November 22, 2018 Category: Biology Source Type: research

Trichoderma species show biocontrol potential in dual culture and greenhouse bioassays against Fusarium basal rot of onion
Publication date: Available online 20 November 2018Source: Biological ControlAuthor(s): Adèle L. Bunbury-Blanchette, Allison K. WalkerAbstractFusarium basal rot (FBR) caused by Fusarium oxysporum f. sp. cepae (FOC) affects onion production worldwide. Despite current control measures, (e.g. 4+ year crop rotations and fungicide application,) disease incidence is increasing in Nova Scotia (NS). This increase causes yearly economic losses of up to 20% onion production value in the Annapolis Valley, NS. While Trichoderma species are successfully used as biocontrol agents of many crop pathogens including Fusarium spp., no...
Source: Biological Control - November 21, 2018 Category: Biology Source Type: research

Impact of Abrostola asclepiadis combined with other stressors on invasive swallow-worts (Vincetoxicum species)
Publication date: Available online 16 November 2018Source: Biological ControlAuthor(s): Lindsey R. Milbrath, Jeromy Biazzo, Antonio DiTommaso, Scott H. MorrisAbstractThe moth Abrostola asclepiadis (Lepidoptera: Noctuidae) is being investigated for the biological control of pale and black swallow-wort (Vincetoxicum rossicum and V. nigrum, respectively; Apocynaceae), European vines introduced into North America. Limited information existed on its potential impact on swallow-worts, and the combination of defoliation damage by A. asclepiadis and other stresses to the plants had not been studied. We conducted greenhouse studies...
Source: Biological Control - November 18, 2018 Category: Biology Source Type: research

Ambient temperature affects the utility of plasticine caterpillar models as a tool to measure activity of predators across latitudinal and elevational gradients
Publication date: Available online 15 November 2018Source: Biological ControlAuthor(s): Kanyata Muchula, Gang Xie, Geoff M. GurrAbstractPredation is a key ecosystem process and central to the practice of biological control. Artificial caterpillars moulded from plasticine have been widely used to compare attack rates in a variety of field settings. A recent study extended their use to latitudinal and elevational gradients and concluded that herbivores at lower latitudes and elevations suffer higher rates of attack by invertebrate predators. The present laboratory study examined effect of ambient temperature on the capacity ...
Source: Biological Control - November 16, 2018 Category: Biology Source Type: research

Biodiversity of lepidopteran pests and their parasitoids in organic and conventional cranberry crop
Publication date: Available online 14 November 2018Source: Biological ControlAuthor(s): Isabelle Drolet, Jean-Frédéric Guay, Valérie Fournier, Conrad CloutierAbstractA 2-year study was conducted in the main cranberry (Vaccinium macrocarpon Aiton) growing region of Québec to determine the biodiversity of lepidopteran pests and their parasitoids, which may differ in organic and conventional integrated pest management (IPM) systems. We also aimed to compare densities and parasitism on five caterpillar pest species of primary economic importance: Macaria sulphurea (Packard), Macaria brunneata (Thunb...
Source: Biological Control - November 15, 2018 Category: Biology Source Type: research