Patent ID: 6413910
Filing Date: 2002-07-02
Classification: A01N

Abstract:
A composition for enhancing resistance to plant diseases comprising the following ingredients:(1) 0.004-0.500% by weight of a chitosan with a molecular weight of 800-150,000 and a degree of deacetylation of 65-97%; (2) 0.004-0.500% by weight of one or more organic acids selected from the group consisting of lactic acid, succinic acid and glutamic acid or a salt thereof; (3) one to three biologically active substances selected from the group consisting of a natural or synthetic plant hormone, a natural unsaturated fatty acid or synthetic derivative thereof, an alkyldimethylbenzyl ammonium salt of a copolymer of N-vinyl pyrrolidone and crotonic acid, phenolic acid, and an inorganic acid; and (4) water as remainder; wherein the weight ratio of (1) to (2) is 1:1 and the weight ratio of (3) to (1) is 0.0002-2:1; and the pH of the composition is 5.6-6.0.