Development and ring-testing of a standardized laboratory test for parasitic wasps, using the aphid-specific parasitoid Aphidius rhopalosiphi

Mead-Briggs, M. A.; Brown, Kate; Candolfi, M. P.; Coulson, Mike; Klepka, S.; Kühner, Ch.; Longley, Martin; Maise, S.; Mclndoe, E.; Miles, Morgan P.; Neumann, Ch.; Ufer, A.

doi:10.1007/978-1-4615-5791-3_9

Cited by 6 publications

(2 citation statements)

References 2 publications

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“…The cages used to expose the adults to the insecticide residue consisted of a frame and two glass plates (120 9 120 mm) as ceiling and floor based on the design by Mead-Briggs et al (1998). Two sides of the frame contained five ventilation holes (5 mm diameter) that were covered by the net to prevent any accumulation of the insecticides fumigants.…”

Section: Adult Stage Bioassaymentioning

confidence: 99%

Comparative study of the population level effects of carbaryl and abamectin on larval ectoparasitoid Habrobracon hebetor Say (Hymenoptera: Braconidae)

et al. 2011

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Habrobracon hebetor Say is one of the most important ectoparasitoids of the larval stage of many invasive agricultural pests such as noctuid and pyralid moths. Lethal and sublethal effects of carbaryl and abamectin were assessed on the ectoparasitoid H. hebetor in laboratory conditions. Dose-response bioassays were carried out on immature and adult stages by using dipping and contact residue methods, respectively. LC 50 (lethal concentration for 50%) values of carbaryl and abamectin were 31.19 and 4.16 mg a.i. l -1 on larval stage and 12.6 and 4.42 mg a.i. l -1 on adults, respectively. In order to assess the sublethal effects, adult wasps were exposed to an LC 30 of each insecticide and then the demographic parameters of live wasps were studied. The results showed that the intrinsic rate of increase (r m ), finite rate of increase (k), net reproductive rate (R 0 ) and gross reproductive rate (GRR) were significantly affected by the insecticides. The highest and the lowest r m values were 0.23 and 0.17 in control and carbaryl-treated insects, respectively. The sex ratio of H. hebetor offspring was not significantly affected by either insecticide. The results showed that carbaryl had more adverse effects on population parameters of the parasitoid compared to abamectin. Field studies are needed to determine the total effects of the pesticides on H. hebetor.

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Section: Adult Stage Bioassaymentioning

confidence: 99%

Comparative study of the population level effects of carbaryl and abamectin on larval ectoparasitoid Habrobracon hebetor Say (Hymenoptera: Braconidae)

et al. 2011

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“…Water-sprayed leaves served as controls. The exposure units, slightly modified from those developed by Jansen [9] and recommended by Mead-Briggs et al [24] for ecotoxicological tests on Aphidiinae, were assembled as follows: Each unit consisted of two deltamethrintreated leaves placed on glass plates, facing each other, and separated by a transparent plastic ring (diameter, 5 cm; height, 2 cm) to form an enclosed arena. The parasitoids were contained in this arena and exposed to the dried residues on the treated leaves.…”

Section: Experiments 2-toxicity Of Deltamethrin On Leavesmentioning

confidence: 99%

Multistep bioassay to predict recolonization potential of emerging parasitoids after a pesticide treatment

Desneux

Ramírez-Romero

Kaiser

2006

Enviro Toxic and Chemistry

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Neurotoxic pyrethroid insecticides are widely used for crop protection, and lethal and sublethal perturbations can be expected in beneficial insects. Under laboratory conditions, the lethal and sublethal effects of deltamethrin on the aphid parasitoid Diaeretiella rapae M'Intosh (Hymenoptera: Braconidae) were studied at the mummy stage and in emerging adults. Following a multistep bioassay, analyses were aimed at evaluating the effects of deltamethrin at various crucial steps in the recolonization process following a deltamethrin treatment: Parasitoid pupal development (emergence from the mummies), adult survival, and host-searching capacity. A four-armed olfactometer was used to investigate the effect of deltamethrin on host-searching behavior (a range of concentrations causing 0.4-79.4% mortality was tested), and a Potter tower was used to test the deltamethrin effect with a realistic application method (four concentrations were tested: 0.5, 5.0, 6.25, and 50 g active ingredient [a.i.]/ha). Deltamethrin reduced the percentage of emergence from mummies, but only when exposed to the 50 g a.i./ha concentration. However, for all concentrations tested, the insecticide induced a decrease in longevity after emergence from sprayed mummies and significant adult mortality when parasitoids walked on fresh residues on leaves. Indices were defined and predicted a high mortality and, thus, reduction of recolonization capacities. However, deltamethrin had no effect on orientation behavior toward aphid-infested plants for adults that survived a residual exposure to the insecticide. The impact of deltamethrin on recolonization via pupal emergence and interest in the methodology used are discussed.

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A hazard quotient approach for assessing the risk to non-target arthropods from

Campbell¹,

Brown²,

Harrison³

et al. 2000

J. Pest Science

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Development and ring-testing of a standardized laboratory test for parasitic wasps, using the aphid-specific parasitoid Aphidius rhopalosiphi

Cited by 6 publications

References 2 publications

Comparative study of the population level effects of carbaryl and abamectin on larval ectoparasitoid Habrobracon hebetor Say (Hymenoptera: Braconidae)

Comparative study of the population level effects of carbaryl and abamectin on larval ectoparasitoid Habrobracon hebetor Say (Hymenoptera: Braconidae)

Multistep bioassay to predict recolonization potential of emerging parasitoids after a pesticide treatment

A hazard quotient approach for assessing the risk to non-target arthropods from

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