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Evaluating new insecticides for the control of Helicoverpa spp. (Lepidoptera: Noctuidae) on capsicum and zucchini

Kay, I.R. (2007) Evaluating new insecticides for the control of Helicoverpa spp. (Lepidoptera: Noctuidae) on capsicum and zucchini. Australian Journal of Entomology, 46 (4). pp. 339-345.

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Article Link(s): http://dx.doi.org/10.1111/j.1440-6055.2007.00611.x

Publisher URL: http://www3.interscience.wiley.com/cgi-bin/home

Abstract

The efficacy of insecticides in controlling Helicoverpa spp., predominantly H. armigera (Hubner), on capsicum and zucchini was tested in small plot trials. Indoxacarb, methoxyfenozide, spinosad, emamectin benzoate and novaluron provided control, as measured by the percentage of damaged fruit, equal to or better than standard treatments of methomyl or methomyl alternated with methamidophos on capsicum. The Helicoverpa nucleopolyhedrovirus gave control equivalent to the standard treatment, as did Bacillus thuringiensis aizawai, but B. thuringiensis kurstaki was ineffective. Helicoverpa armigera larvae were present in zucchini flowers but did little damage to the fruit. None of the insecticides significantly reduced the percentage of damaged zucchini fruit compared with the untreated control. Bifenthrin, spinosad, emamectin benzoate and methoxyfenozide were effective in controlling larvae in flowers, while methomyl, B. thuringiensis aizawai, B. thuringiensis kurstaki and novaluron were not effective. Data indicated that all the insecticides effectively controlled larvae of Diaphania indica (Saunders), cucumber moth, in the zucchini flowers. There has been a limited range of insecticides available to manage Helicoverpa spp. in these vegetable crops, but these trials demonstrate the effectiveness of a number of newer insecticides that could be used and that would be compatible with integrated pest management programs in the crops.

Item Type:Article
Corporate Creators:Horticulture & Forestry Science
Additional Information:© Queensland Department of Primary Industries and Fisheries. © John Wiley & Sons, Ltd.
Keywords:Cucurbits; Diaphania; Helicoverpa armigera; vegetable.
Subjects:Science > Zoology > Invertebrates > Insects
Plant pests and diseases > Individual or types of plants or trees
Plant culture > Vegetables
Plant pests and diseases > Pest control and treatment of diseases. Plant protection > Pesticides
Deposited On:02 Feb 2009 06:52
Last Modified:19 Apr 2011 03:50

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