Journal of the Australian Entomological Society (1994) 33, 61-64

R.V. Gunning and C.S. Easton (1994)
The response of Helicoverpa punctigera (Waliengren) (Lepidoptera: Noctuidae) to DDT, endosulfan, deltamethrin and fenvalerate
Journal of the Australian Entomological Society 33 (1), 61-64
Abstract: Helicoverpa punctigera populations were collected from field locations in Australia from 1974 to 1991 and their responses to insecticides used for H. punctigera control were determined. Insecticides were topically applied to third instar larvae. the LD^50s for deltamethrin, fenvalerate, endosulfan and DDT ranged from 0.002-0.006 μg/larva (nine population samples tested), 0.004-0.02 μg/larva (48 samples); 0.5-1.7 μg/larva (18 samples); 1.5-2.8 μg/larva (8 samples), respectively. There was no evidence of H. punctigera resistance to DDT, endosulfan, deltamethrin and fenvalerate. We suggest that field resistance development in H. punctigera has been retarded by ecological factors which may limit insecticide exposure.
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Database assignments for author(s): Robin V. Gunning

Research topic(s) for pests/diseases/weeds:
pesticide resistance of pest

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Pest and/or beneficial records:

Beneficial	Pest/Disease/Weed	Crop/Product	Country	Quarant.
	Helicoverpa punctigera		Australia (South+SE)
	Helicoverpa punctigera		Australia (NT+QLD)
	Helicoverpa punctigera		Australia (Western)