Microbial weeding oil flowable concentrate for rice field

Abstract

The invention discloses a microbial weeding oil flowable concentrate for rice field, which is characterized by taking Curvularia lunata (Wakker) Boedijn B6 with the preservation number of CGMGG No. 2928 as an effective component, being complemented by suitable solvent, surfactant, thickener and stabilizer, and then preparing a suspension system after mechanical grinding, wherein the effective component is (0.1-10)*108 spores / ml, the mass percentage of the surfactant is 1-10, the mass percentage of the stabilizer is 1-10, the mass percentage of the thickener is 0.1-5, and the solvent is filled in to 100 percent; the oil-based suspension is used for preventing and weeding barnyard grass in the rice field and is safe for the rice, and can control the barnyard grass of a whole rice growth period by using the microbial weeding oil-based suspension once; and the invention provides a novel formulation of an effective post-sprout microbial herbicide with stable storage, and the microbial weeding oil flowable concentrate is environmental-friendly, prevents and weeds the barnyard grass in the rice field and increases the yield obviously.

Description

technical field

[0001] The invention relates to a novel microbial herbicide, in particular to an oil suspension concentrate of a fungal herbicide, and belongs to the field of agricultural chemicals. Background technique

[0002] Curvularia crescens B6 (preservation number CGMCC No.2928) is a newly developed herbicide fungus. After a large number of experimental studies, it has shown that it has high biological activity against barnyardgrass in paddy fields, and it has anti-weeding properties when used in paddy fields. It has the characteristics of high efficiency, safety to the ecological environment of rice fields, no residual toxicity, no phytotoxicity, and obvious increase in yield. At present, the main dosage forms of microbial pesticides are water preparations and wettable powders. The water preparations contain low active ingredients, and the amount in the process of packaging, transportation, and use is large, and the cost of use is high; although the wettable powders...