Early-Season Applications of the FungusBeauveria bassianaand Introduction of the Hemipteran PredatorPerillus bioculatusfor Control of Colorado Potato Beetle

Poprawski, T. J.; Carruthers, Raymond I.; Speese, John; Vacek, Don C.; Wendel, Lloyd E.

doi:10.1006/bcon.1997.0537

Cited by 54 publications

(24 citation statements)

References 27 publications

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“…Notable among these are Poprawski et al (1997), Wraight et al (2000), and Wraight and Ramos (2002). Wraight et al (2000) applied B. bassiana GHA against Bemisia tabaci (Gennadius) in various crops, monitoring spray coverage with plastic coverslips on which conidial deposition rates could be determined.…”

Section: Inundative Use Against Foliar Pestsmentioning

confidence: 99%

Ecological factors in the inundative use of fungal entomopathogens

2009

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Fungal entomopathogens have been developed in numerous countries as biocontrol agents with more than 100 mycoinsecticide products commercially available in 2006. The chief, perhaps sole, use of these mycoinsecticides has been as inundative agents, within a chemical paradigm. Large numbers of propagules are applied in an attempt to overwhelm by brute force many of the factors that keep a pathogen in nonepizootic equilibrium with its host. This review attempts to summarize what we know about the abiotic and biotic factors that affect the efficacy of these mycoinsecticides in both foliar and soil applications. Sunlight, humidity, temperature, and phylloplane-associated factors can affect both immediate efficacy and persistence on plants. Likewise, soil texture-moisture interactions, temperature, and a host of biotic factors can affect mycoinsecticides in the soil. Despite much research, our understanding of these ecological aspects is imperfect, especially in a holistic, dynamic sense.

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Section: Inundative Use Against Foliar Pestsmentioning

confidence: 99%

Ecological factors in the inundative use of fungal entomopathogens

2009

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“…Results from foliar spray applications have been positive in some small-scale field tests (Fargues et al, 1980;Campbell et al, 1985;Anderson et al, 1988;Poprawski et al, 1997;Lacey et al, 1999), but in other tests, including pilotscale efforts, efficacy has been marginal to poor (Anderson et al, 1988;Jaques and Laing, 1988;Hajek et al, 1987), We conducted small-scale field tests of B. bassiana strain GHA formulated as BotaniGard in the late 1990s and ultimately reached conclusions similar to those of Hajek et al (1987) that multiple, frequent applications of Bb, even via efficient manually-targeted sprayers, could not be relied upon to control larval populations of this difficult pest (Wraight and Ramos, 2002).…”

Section: Introductionmentioning

confidence: 99%

Delayed efficacy of Beauveria bassiana foliar spray applications against Colorado potato beetle: Impacts of number and timing of applications on larval and next-generation adult populations

Wraight

Ramos

2015

Biological Control

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“…Predators, that have been documented to be infected by fungal entomopathogens, include staphylinid beetles (Steenberg et al 1995) and carabid beetles (Vestergaard and Eilenberg 2000). Also hemipteran predators that have been studied from the perspective of nontarget effects of fungal entomopathogens (Poprawski et al 1997;Todorova et al 2002;Dunkel and Jaronski 2003) could constitute potential species for studying TMIE. In other well-studied systems involving specialist fungal entomopathogens, such as the aphid-P. neoaphidis system, we may not expect TMIE mediated by predators or parasitoids.…”

Section: Trait-mediated Indirect Effectsmentioning

confidence: 99%

Principles from community and metapopulation ecology: application to fungal entomopathogens

Meyling

Hajek

2009

BioControl

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Fungal entomopathogens are often studied within the context of their use for biological control, yet these natural enemies are also excellent subjects for studies of ecological interactions. Here, we present selected principles from community ecology and discuss these in relation to fungal entomopathogens. We discuss the relevance of apparent competition, food web construction, intraguild predation and density-mediated and trait-mediated indirect effects. Although current knowledge of community interactions involving fungal entomopathogens are limited, fungal entomopathogens can be important, interactive members of communities and the activities of fungal entomopathogens should be evaluated in the context of ecological principles. We also discuss aspects of metapopulation ecology and the application of these principles to fungal entomopathogens. Knowledge of ecological interactions is crucial if we are to understand and predict the effects of fungal entomopathogens on host populations and understand the interactions among fungal entomopathogens and other organisms in the communities in which they occur.

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Early-Season Applications of the FungusBeauveria bassianaand Introduction of the Hemipteran PredatorPerillus bioculatusfor Control of Colorado Potato Beetle

Cited by 54 publications

References 27 publications

Ecological factors in the inundative use of fungal entomopathogens

Ecological factors in the inundative use of fungal entomopathogens

Delayed efficacy of Beauveria bassiana foliar spray applications against Colorado potato beetle: Impacts of number and timing of applications on larval and next-generation adult populations

Principles from community and metapopulation ecology: application to fungal entomopathogens

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