Environmental Entomology (1987) 16, 507-512

D.K. Sewall and B.A. Croft (1987)
Chemotherapeuticand nontarget side effects of benomyl to orange tortrix, Argyrotaenia citrana (Lepidoptera: Tortricidae), and baconid endoparasite Apanteles aristoteliae (Hymenoptera: Braconidae)
Environmental Entomology 16 (2), 507-512
Abstract: Benomyl incorporated into artificial diet and fed to nonparasitized and parasitized third-instar orange tortrix, Argyrotaenia citrana (Fernald), was nontoxic to hosts at 300 ppm, but toxic via the host to the solitary endoparasite Apanteles aristoteliae Vierek. This same concentration fed to hosts after parasitization rid hosts of parasites and significantly increased percentage of parasitized host larvae pupating as compared with control larvae. This chemotherapeutic effect was similar for hosts fed benomyl-laced diet for 24 h after parasitization versus those fed benomyl continuously. Increasing concentrations of benomyl from 150 to 1,200 ppm. caused increasing percentages of parasitized hosts blocked in larval development for < 120 d. Increased levels of blocked hosts were associated with increased levels of larvae dissected from hosts that did not pupate or produce parasites after 30 d of larval development. Percentage adult parasite emergence was reduced by all fungicide treatments. Potential uses of benomyl or like substances to study parasite/host relationships and how benomyl may impact on field populations of these insects are discussed.
(The abstract is excluded from the Creative Commons licence and has been copied with permission by the publisher.)

Research topic(s) for pests/diseases/weeds:
biocontrol - natural enemies
health/environmental effects of pesticides
Research topic(s) for beneficials or antagonists:
resistance to pesticides

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Pest and/or beneficial records:

Beneficial	Pest/Disease/Weed	Crop/Product	Country	Quarant.
	Argyrotaenia franciscana
Apanteles aristoteliae (parasitoid)	Argyrotaenia franciscana