Side effects of toxic bait formulations on Diachasmimorpha longicaudata (Hymenoptera: Braconidae).
Daniel Bernardi,Aline Nondillo,Cléber Antonio Baronio,Ligia Caroline Bortoli,Ruben Machota Junior,Rute Caroline Becker Treptow,Fernanda Carla Santos Geisler,Camila Gauger Neitzke,Dori Edson Nava,Marcos Botton +9 more
TL;DR: Formulations of toxic baits based on spinosyn are suitable for the management of C. capitata together with the parasitoid D. longicaudata, and these formulations did not reduce the parasitism and emergence rate of the F1 generation of D.Longicaudta larvae.
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Abstract: Diachasmimorpha longicaudata (Ashmead, 1905) (Hymenoptera: Braconidae) is considered one of the main biological control agents of Ceratitis capitata (Wiedemann) (Diptera: Tephritidae). However, the application of toxic baits for the management of C. capitata might exert side effects on the parasitoid. The objective of this study was to evaluate the side effects of toxic bait formulations on D. longicaudata. The food attractants Anamed, 3% Biofruit, 1.5% CeraTrap, 1.25% Flyral, 3% Isca Samarita, 3% Isca Samarita Tradicional, and 7% sugarcane molasses mixed with an organophosphate insecticide [malathion, 2.0 grams of active ingredient (g a.i.) L−1] and the commercial formulation Gelsura (2.0 and 4.0 g a.i. L−1 alpha-cypermethrin) showed high toxicity to D. longicaudata adults (>90% mortality) after 96 h and were thus classified as harmful (Class 4). Similarly, 3% Isca Samarita Tradicional and 7% sugarcane molasses in formulations with the insecticides spinosad and spinetoram (0.096 g a.i. L−1 or kg) were moderately harmful (Class 3). In contrast, the food attractants Anamed, 3% Biofruit, 1.5% CeraTrap, 1.25% Flyral, and 3% Isca Samarita Tradicional in combination with spinosad and spinetoram and the formulation Success 0.02CB (0.096 g a.i. L−1 spinosad) were classified as harmless (<10% mortality up to 96 h, Class 1). Additionally, these formulations did not reduce the parasitism and emergence rate of the F1 generation of D. longicaudata in C. capitata larvae. Formulations of toxic baits based on spinosyn are suitable for the management of C. capitata together with the parasitoid D. longicaudata.
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RNAi in fruit flies (Diptera: Tephritidae): Successes and challenges
TL;DR: The main challenges to the future use of RNAi as a method to control Tephritidae are discussed, including delivery procedures, degradation and production of dsRNA, off‐target effects, occurrence of refractoriness, and perspectives and shortages associated with its adoption that need to be considered.
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Mass trapping is a viable alternative to insecticides for management of Anastrepha fraterculus (Diptera: Tephritidae) in apple orchards in Brazil
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TL;DR: Mass trapping combined with the use of toxic baits can be an alternative to the conventional management of A. fraterculus in crop systems without anti-hail netting.
21
Sex-dependent locomotion and physiological responses shape the insecticidal susceptibility of parasitoid wasps
Felipe Andreazza,Khalid Haddi,Sandro Daniel Nörnberg,Raul Narciso C. Guedes,Dori Edson Nava,Eugênio E. Oliveira,Eugênio E. Oliveira +6 more
TL;DR: The results indicate that male parasitoids should not be exempt from insecticide selectivity tests, as these organisms can be significantly more affected by such environmental challenges than their female conspecifics.
13
Susceptibility of Brazilian Populations of Anastrepha fraterculus, Ceratitis capitata (Diptera: Tephritidae), and Drosophila suzukii (Diptera: Drosophilidae) to Selected Insecticides.
Maíra Chagas Morais,Matheus Rakes,A. C. Padilha,Anderson Dionei Grützmacher,Dori Edson Nava,Oderlei Bernardi,Daniel Bernardi +6 more
TL;DR: In this article, the authors evaluated the susceptibility of Brazilian populations of A. fraterculus, C. capitata, and D. suzukii to selected insecticides.
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Lethal and sublethal toxicities of acetogenin-based bioinsecticides on Ceratitis capitata and the parasitoid Diachasmimorpha longicaudata
Paloma Stupp,Matheus Rakes,Liliane Nachtigall Martins,Bruna Piovesan,Daiana da Costa Oliveira,Javier A. Contreras Miranda,Leandro do Prado Ribeiro,Dori Edson Nava,Daniel Bernardi,Daniel Bernardi +9 more
TL;DR: Evaluated the action lethal and sublethal of three formulations of Annona species extracts on adults of Ceratitis capitata and found the A. mucosa seed extract was considered the most promising product for use in C. capitata management programs, particularly in organic-based systems.
9
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