Toxicity of two ecdysone agonists, halofenozide and methoxyfenozide, against the multicoloured Asian lady beetle Harmonia axyridis (Col., Coccinellidae).
作者： B. Carton , G. Smagghe , L. Tirry
DOI: 10.1046/J.1439-0418.2003.00734.X
关键词: Biology 、 Larva 、 Colorado potato beetle 、 Coccinellidae 、 Botany 、 Moulting 、 Ecdysone 、 Pupa 、 Zoology 、 Harmonia axyridis 、 Leptinotarsa
摘要: The insecticidal activity of two ecdysone agonists, methoxyfenozide (RH-2485) and halofenozide (RH-0345), was tested against last-instar larvae the natural predator Harmonia axyridis (Col., Coccinellidae). In addition, relative weight gain after application followed. Both products proved to be equally toxic at concentrations 25, 50 100 mg/l. ecdysteroidal compounds caused premature induction larval moulting, cessation feeding incomplete pupation in affected larvae. Although, compared with previous results target pests such as Colorado potato beetle, Leptinotarsa decemlineata, these mortality only relatively high concentrations.
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