The effects of azadirachtin-treated diets on the feeding behaviour and fecundity of the peach-potato aphid,Myzus persicae |
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| Authors: | A J Nisbet J A T Woodford and R H C Strang |
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| Institution: | (1) Department of Zoology, Scottish Crop Research Institute, Invergowrie, DD2 5DA Dundee, Scotland;(2) Department of Biochemistry, University of Glasgow, G12 8QQ Glasgow, Scotland;(3) Present address: Department of Zoology, University of Aberdeen, Tillydrone Avenue, AB9 2TN Aberdeen, Scotland |
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| Abstract: | Adult apterousMyzus persicae, which had fed for 26 h on diet containing azadirachtin at concentrations of 25–100 ppm, produced nymphs at less than half
the rate of aphids on control diets. After 50 h on azadirachtin-treated diets nymph production had virtually ceased. After
this period, any nymphs produced by adults that had fed on azadirachtin-treated diets were born dead with undeveloped appendages.
Honeydew production on azadirachtin-treated diets was unaffected during the first 26 h period but was approximately three
times less than on control diets during the subsequent 24 h period. |
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| Keywords: | azadirachtin diet antifeedant fecundity aphid Myzus persicae |
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