AGRICULTURAL CHEMICAL PILE FOR EXTERMINATING INJURIOUS INSECT

PURPOSE:The titled agricultural chemical pile, prepared by molding and solidifying a penetrating and migrative insecticide and nematocide as and active constituent and further a fertilizer and/or a filler into a pile, and capable of absorbing the insecticidal component from the root of a lawn or tree without damaging the root, etc. thereof near the surface of the earth. CONSTITUTION:An agricultural chemical pile prepared by molding and solidifying a penetrating and migrative insecticide and nematocide as active constituents and further a fertilizer and/or filler into a pile. ''Ethylthiometon'' of formula I , ''Methomyl'' of formula II, ''Acephate'' of formula III, etc. may be cited as the penetrating and migrative insecticide and nematocide, and the content thereof is 2.5-50wt% preferably 5-30wt%, based on the total weight. Either one of an inorganic or organic fertilizer may be used as the fertilizer, and a mineral fine powder, e.g. talc or clay, may be preferred for the filler. In case Bursaphelenchus lignicolus is the object, Ethylthiometon of formula I , Methomyl of formula II or Ethoprop of formula IV is preferably used as the active constituent.