Method of reducing infestation of citrus rust mites on citrus trees

摘要

A method of reducing the population of the citrus rust mite on citrus trees by treating the trees with such substituted benzoyl phenyl ureas asPPN-(2,6-difluorobenzoyl)-N'-(3-fluoro-4-chloro- phenyl) urea andPPN-(2,6-difluorobenzoyl)-N'-(4-chloro- phenyl) urea.