Substituted phenyl acetate, insecticidal composition and method of use

#1. Field of the Invention

#This invention relates to a pesticide, and more particularly, this invention relates to substituted acetate compounds of the formula (I) hereinafter described useful for controlling arthropods, pesticidal compositions containing as active ingredients at least one substituted acetate compound of the formula (I), as well as processes for preparing the substituted acetate compounds and the pesticidal compositions.

#2. Description of the Prior Art

#10 third inster larvae of tobacco cutworm (Spodoptera lituna Fabricius) were placed in a glass tray having a high side-wall and a diameter of 14 cm, and 1 ml of a 200-fold dilute solution of each of the emulsifiable concentrates obtained in Formulations 1 and 3 diluted with water was sprayed on the larvae with a sprayer and the larvae thus treated were then transferred into a glass tray containing feeds followed by allowing to stand. Two days after the treatment, greater than 80% of the larvae was found to be killed in each case.

#In an area of a radish field in the 5-6 leaf stage, a number of green peach aphids (Myzus persicae Sulza) was atomized with a 200-fold dilute solution of each of the emulsifiable concentrates obtained in Formulations 1, 2 and 4 diluted with water at a level of 424 l/acre. Investigation two days after treatment revealed that the density of aphids is reduced to less than 1/10 the density before treatment in each case.

#A piece of plywood board (15 cm .times.15 cm) was applied with a 200-fold dilute solution of each of the emulsifiable concentrates obtained in Formulations 1 and 2 diluted with water in an amount of 50 ml/m.sup.2 followed by drying. Adult German cockroaches (Blatuella germanica Linne) were then brought into contact with the plywood board thus treated for 1 hour, and it was found that more than 80% cockroaches was killed three days after contact with the board.