Biological Parameters of Euschistus heros (F.) (Heteroptera: Pentatomidae) and its Susceptibility to Entomopathogenic Fungi When Fed on Different Diets

Oliveira, Daian Guilherme Pinto de; Dudczak, Amanda Caroline; Alves, Luís Francisco Angeli; Sosa–Gómez, Daniel Ricardo

doi:10.1590/1678-4324-2016150141

Cited by 4 publications

(1 citation statement)

References 29 publications

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“…Some studies reported the virulence of conidia of B. bassiana against stink bugs, as E. heros (Oliveira et al, 2016;Sosa-Gómez and Moscardi, 1998). However, in this study, we show for the first time the virulence of blastospores of this fungal species to the brown stink bug, beyond also confirmed the possibility to use blastospores of C. fumosorosea and M. rileyi for E. heros control.…”

Section: Discussionsupporting

confidence: 73%

Development of drying methods and evaluation of blastospores efficacy of >i<Beauveria bassiana>/i<, >i<Cordyceps fumosorosea>/i<, and >i<Metarhizium rileyi>/i< against >i<Euschistus heros>/i< and >i<Spodoptera>/i< spp.

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Section: Discussionsupporting

confidence: 73%

Development of drying methods and evaluation of blastospores efficacy of >i<Beauveria bassiana>/i<, >i<Cordyceps fumosorosea>/i<, and >i<Metarhizium rileyi>/i< against >i<Euschistus heros>/i< and >i<Spodoptera>/i< spp.

Corrêa¹

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Early‐life food stress hits females harder than males in insects: A meta‐analysis of sex differences in environmental sensitivity

Teder

Kaasik

2023

Ecology Letters

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Fitness consequences of early‐life environmental conditions are often sex‐specific, but corresponding evidence for invertebrates remains inconclusive. Here, we use meta‐analysis to evaluate sex‐specific sensitivity to larval nutritional conditions in insects. Using literature‐derived data for 85 species with broad phylogenetic and ecological coverage, we show that females are generally more sensitive to food stress than males. Stressful nutritional conditions during larval development typically lead to female‐biased mortality and thus increasingly male‐biased sex ratios of emerging adults. We further demonstrate that the general trend of higher sensitivity to food stress in females can primarily be attributed to their typically larger body size in insects and hence higher energy needs during development. By contrast, there is no consistent evidence of sex‐biased sensitivity in sexually size‐monomorphic species. Drawing conclusions regarding sex‐biased sensitivity in species with male‐biased size dimorphism remains to wait for the accumulation of relevant data. Our results suggest that environmental conditions leading to elevated juvenile mortality may potentially affect the performance of insect populations further by reducing the proportion of females among individuals reaching reproductive age. Accounting for sex‐biased mortality is therefore essential to understanding the dynamics and demography of insect populations, not least importantly in the context of ongoing insect declines.

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Biological control potential of two Beauveria bassiana isolates against the stink bugs Nezara viridula L. and Piezodorus guildinii Westwood (Hemiptera: Pentatomidae) in common bean

Ramos,

Portal,

Meyling

et al. 2024

Egypt J Biol Pest Control

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Background The stink bugs, Nezara viridula L. and Piezodorus guildinii Westwood (Hemiptera: Pentatomidae) are the most important and widespread species of polyphagous stink bugs in the tropical and subtropical regions of Latin America, which affect the quality and yield of the common bean (Phaseolus vulgaris L.). The use of synthetic chemical insecticides is the major control strategy to manage stink bugs in common beans and alternatives are needed. In this study, mortality and median Lethal Time (LT50) of two Cuban isolates of the entomopathogenic fungus Beauveria bassiana (18 S-O-R and 96 P-O-E), as well as one commercial Cuban isolate (Bb-18), at a concentration of 1 × 108 conidia/ml were evaluated. These evaluations were conducted against both stink bug species using Petri dish bioassays and a semi-field experiment in common beans. Results In Petri dish bioassays, the isolates 18 S-O-R and 96 P-O-E caused 100% mortality of both N. viridula and P. guildinii. This was significantly higher than for isolate Bb-18, which caused 86.3% N. viridula and 81.3% P. guildinii mortality. In the semi-field experiment, when pooling both stink bug species, total mortality after 14 days was 91.3% for 18 S-O-R, 80.0% for 96 P-O-E and 73.8% for Bb-18 isolates. LT50 value for isolate 18 S-O-R tested under laboratory conditions was 6.04 ± 0.18 days for N. viridula and 5.32 ± 0.14 days for P. guildinii at the same concentration of 1 × 108 conidia/ml. LT50 value for isolate 18 S-O-R in semi field was 6.79 ± 0.37 days for N. viridula and 7.71 ± 0.32 days for P. guildinii at 1 × 108 conidia/ml. Conclusion The study highlights the potential of B. bassiana 18 S-O-R as a promising candidate for control of stink bugs in common bean under tropical conditions as an alternative to conventional chemical insecticides in integrated pest management (IPM) programs. Moving forward, further research should focus on validating the efficacy under diverse field conditions and integrating application methods into practical IPM approaches. Future use of B. bassiana will enhance sustainability and reduce environmental impacts associated with pesticide use.

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Biological Parameters of Euschistus heros (F.) (Heteroptera: Pentatomidae) and its Susceptibility to Entomopathogenic Fungi When Fed on Different Diets

Abstract: ABSTRACT

Cited by 4 publications

References 29 publications

Development of drying methods and evaluation of blastospores efficacy of >i<Beauveria bassiana>/i<, >i<Cordyceps fumosorosea>/i<, and >i<Metarhizium rileyi>/i< against >i<Euschistus heros>/i< and >i<Spodoptera>/i< spp.

Development of drying methods and evaluation of blastospores efficacy of >i<Beauveria bassiana>/i<, >i<Cordyceps fumosorosea>/i<, and >i<Metarhizium rileyi>/i< against >i<Euschistus heros>/i< and >i<Spodoptera>/i< spp.

Early‐life food stress hits females harder than males in insects: A meta‐analysis of sex differences in environmental sensitivity

Biological control potential of two Beauveria bassiana isolates against the stink bugs Nezara viridula L. and Piezodorus guildinii Westwood (Hemiptera: Pentatomidae) in common bean

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