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The insecticidal activity of six lately synthesized carbamate derivatives of furfural oxime N-methylcarbamate (I), 5-methyljural oxime N-methylcarbamate(II), methyl p-(methylcarbamoyl) oxybenzoate (IV), ethyl p-(methylcarbamoyl) oxybenzoat(V), n-propyl p-(methyl carbamoyl)oxybenzoate(VI)and n-butyl p-(methyl carbamoyl)oxybenzoate (VII) and of benz(e)-N-methyl-1,3-oxazadihydroine-2,4-dione(III) was examined using 0.2w/v% acetone solutions of each compound. Among them, alkyl p-(methyl carbamoyl) oxybenzoates exerted slightly insecticidal effects on Sogata furcifera HORVATH, Delphacodes stria striatella FALLEN, whereas no significant effects were observed on Nilaparvata Iugens STAL, Inazuma dorsalis MOISCHIULSKY, and Nephotettix apicalis cincticeps UHLER.
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