Abstract: A Streptomyces antibioticus PPI-16 with the accession number of GDMCC NO: 60970. Active compounds produced thereby can inhibit multiple pathogenic fungi, including Colletrichum orbiculare, Colletotrichum capsica, Tobacco anthracnose, and Candida albicans.

Abstract: A composition for preventing and treating bacterial leaf streak, and a preparation method therefor and an application thereof. The composition includes the following components in percentage by weight: 10-15 parts of dodecyl dimethyl benzyl ammonium bromide, 15-20 parts of copper sulfate pentahydrate, 20-25 parts of 84 disinfectant, and 40-55 parts of water. The composition is diluted and then may be used for rice seed soaking so as to prevent rice bacterial leaf streak, or is sprayed onto rice leaves so as to prevent and treat rice bacterial leaf streak. The application method of the composition is simple and convenient to operate, and solves the problem of the shortage of a prevention and treatment drug of rice bacterial leaf streak.

Abstract: A staurosporine-emamectin benzoate suspending agent and a preparation method and application thereof. The suspending agent contains staurosporine and emamectin benzoate. Among them, the mass ratio of staurosporine to emamectin benzoate is 1-9:9-1. The suspending agent in the present invention can be prepared by adding an appropriate amount of wetting agent, dispersing agent, wetting & dispersing agent, thickener, stabilizer, antifreeze, pH adjuster and defoaming agent into staurosporine and emamectin benzoate. The preparation is highly efficient, low-toxic and pollution-free. After being sprayed, it is distributed on the surface of crops as fine particles, which is more conducive to the direct control of pests, can reduce the dosage of emamectin benzoate, enhance the effect of pest control, and effectively delay the resistance.