Methods for protecting vegetables, turfgrass, rice and fruit trees from fungi and bacteria
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United States of America Patent
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Dec 20, 1994
Issued Date -
N/A
app pub date -
Jan 19, 1993
filing date -
Sep 21, 1990
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A variety of plant diseases and damage by certain pests in agricultural and horticultural plants can be efficiently controlled without substantial chemical injuries by applying a plant-protecting composition which comprises (a) 1 part by weight of a chitosan hydrolyzate having an average molecular weight of 10,000 to 50,000, obtained by acid hydrolysis or enzymatic hydrolysis of chitosan and (b) 0.25 to 4 parts by weight of acetic acid. Any possible chemical injury to plants caused by applying the composition can be further reduced when the composition is admixed with a deproteinized juice of alfalfa leaves.
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