Effect of Insecticides against the Garden Pea Leafminer <I>Chromatomyia horticola</I> (Goureau) (Diptera: Agromyzidae)

概要

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The inhibitory effects of insecticides on the garden pea leafminer <I>Chromatomyia horticola</I> (Goureau) on turnip leaves were examined under field conditions. Among of the 15 insecticides tested by spraying them on plants infested with leafminer larvae, tolfenpyrad was highly toxic on larvae of the insect and reduced the number of feeding traces of the larvae on the leaves. Spinosad, emamectin-benzoate, milbemectin, chlorfenapyr and cyromazine were also effective in controling leafminer populations, but their reduction effect on the number of feeding traces was weaker than that of tolfenpyrad. No such effects were observed on the plants sprayed with malathion, phenthoate, permethrin, thiamethoxam and acetamiprid.
北日本病害虫研究会の論文