Journal of Economic Entomology (2006) 99, 32-37

Peter A. Follett (2006)
Irradiation as a methyl bromide alternative for postharvest control of Omphisa anastomosalis (Lepidoptera: Pyralidae) and Euscepes postfasciatus and Cylas formicarius elegantulus (Coleoptera: Curculionidae) in sweet potatoes
Journal of Economic Entomology 99 (1), 32-37
Abstract: Irradiation studies were conducted with three sweet potato, Ipomoea batatas (L.) Lam., pests to determine an effective dose for quarantine control. Dose-response tests indicated that the most radiotolerant stage occurring in roots was the pupa of sweetpotato vine borer, Omphisa anastomosalis (Guenee), and the adult of West Indian sweetpotato weevil, Euscepes postfasciatus (Fairmaire), and sweetpotato weevil, Cylas formicarius elegantulus (Summers). In large-scale confirmatory tests, irradiation of 60,000 C. formicarius elegantulus adults, 62,323 E. postfasciatus adults, and 30,282 O. anastomosalis pupae at a dose of 150 Gy resulted in no production of F₁ adults, demonstrating that this dose is sufficient to provide quarantine security.
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Database assignments for author(s): Peter A. Follett

Research topic(s) for pests/diseases/weeds:
control - general
quarantine treatments/regulations/aspects

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Pest and/or beneficial records:

Beneficial	Pest/Disease/Weed	Crop/Product	Country	Quarant.
	Cylas formicarius	Sweet potato (Ipomoea batatas)
	Euscepes postfasciatus	Sweet potato (Ipomoea batatas)
	Omphisa anastomosalis	Sweet potato (Ipomoea batatas)