Strains of Drechslera ssp for controlling grass

Details Strains of Drechslera ssp for controlling grass Strains of Drechslera ssp for controlling grass

1993-06-15

1994-07-26

Robinson, Douglas W.

Plant protecting and regulating compositions

Plant growth regulating compositions

Micro-organisms or from micro-organisms

424405, 4352541, 435911, 504101, 504116, A01N 6300, C12N 100

Patent

active

053325737

ABSTRACT:
Described are new strains of Drechslera spp., which possess herbicidal effects against all varieties of barnyard grass, i.e., Echinochloa spp. but do not give any influence to crops under cultivation such as rice. The control agents according to the present invention, which contain one or more of the strains, have high safety and selectivity, thereby providing practical control effects against barnyard grass. Further, the control compositions according to the present invention, which contain one or more of the new strains in combination with one or more chemical herbicides, have sufficient herbicidal effects even at dosages which are too low to permit control of barnyard grass when they are applied singly, thereby making it possible to reduce the dosage of herbicides. Thus, the control compositions can therefore contribute to the prevention of environmental pollution and the occurrence of barnyard grass with acquired pesticide resistance.

REFERENCES:
patent: 4606751 (1986-08-01), Van Dyke et al.
Jong et al., PhD, ATCC of Fungi/Yeasts, 1987, 17th ed., p. 144.
Bio. Abst., Prete, 1984, (pp. 260-267); #80561 ref. #; Seed-borne fungi of weeds.
Robeson et al., Monocerin, a phytotoxin from Exserohilium turcicum (Dreshtera turcica), 1982, 2681-2682, etc.
Strubel, et al., The Incredible Fungal genus--Drechslera--and its Phytotoxic Ophiobolins, 1988, 145-151.

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