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The spatial distribution of Anua indiscriminata larvae in the eucalyptus plantation and toxicity of insecticides to the larvae in the laboratory were reseached. The results showed that the spatial distribution of the larvae was aggregated；the larval population density in different directions or level layers of the tree crown was not different significantly;the larval population density was affected by slope directions, and the larval population density in southern slope was obviously higher than that in northern slope . 1500 dilution of 25%chlorbenzuron, 4000 dilution of 1.8%Avermectin, 2000 dilution of 0.2%Emamectin benzoate or 5%Fipronil, 500 dilution of 0.3%Azadirachtin, 1000 dilution of 1.3%Rotenone+Fenvalerate or 10%Imidacloprid had good control effects, and the mortalities of the 5-6 instar larvae were more than 96%.
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