Methods for protecting vegetables, turfgrass, rice and fruit tre

Details Methods for protecting vegetables, turfgrass, rice and fruit tre Methods for protecting vegetables, turfgrass, rice and fruit tre

1993-01-19

1994-12-20

Russel, Jeffrey E.

Drug, bio-affecting and body treating compositions

Designated organic active ingredient containing

Carbohydrate doai

514777, 504100, 504101, A01N 4304, A01N 2500

Patent

active

053746279

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.

REFERENCES:
patent: 3975546 (1976-08-01), Stahmann
patent: 4356196 (1982-10-01), Hultquist
patent: 4554155 (1985-11-01), Allan et al.
Brown et al; Developmental Industrial Microbiology; vol. (23); pp. 513-519; 1982.
Lewis et al; Crop Protection Journal; vol. (10), pp. 95-105; 1991.
Hirano et al; "Effects of Chitosam Pectic Acid, Lysozyme, and Chitanase on the Growth of Several Phytopathogens", Agricultural Biological Chemistry Journal; vol. (53) 11; pp. 3065-3066; May, 1989.
Kendra et al, "Characterization of the Smallest Chitosan Oligomer That Is Maximally Antifungal to Fusarium solani and Elicits Isatin Formation in Pisum sativum", 1984, pp. 276-281, Experimental Mycology 8.
Stossel et al, "Effect of Chitosan, Chitin and some Aminosugars on Growth of Various Soilborne Phytophathogenic Fungi", (1984), pp. 82-90, Phytopath.Z.
C. R. Allan et al, "The Fungicidal Effect on Fungi of Varying Cell Wall Composition", (1979), pp. 285-287, Experimental Mycology 3.

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