31results about How to "Control sheath blight" patented technology

The invention belongs to the technical field of fertilizers, and discloses a pesticide fertilizer slow release preparation, as well as a preparation method and an application method thereof. The pesticide fertilizer preparation comprises 0.01-10 percent of imidacloprid, 0.001-0.5 percent of fludioxonil, 10-80 percent of amino acids, 0.1-5 percent of slow release materials, 0.5-4 percent of a dispersing auxiliary, and the balance of fillers. The pesticide fertilizer slow release preparation has the triple effects of pest killing, anti virus and fertilizing, and is capable of making crops resistant to pests and diseases and providing supplementary nutrients for crop growth; the lasting period of the effects of pesticide and fertilizer is extended; the utilization and use effects of pesticide and fertilizer are improved; effects of pesticide and fertilizer are strengthened; crop yield is remarkably increased.

The invention discloses a composition for preventing main diseases of rice. The composition is composed of thifluzamide, validamycin and prochloraz, and a mass ratio of the thifluzamide, the validamycin and the prochloraz is 1:5:2 or 1:5:5. The thifluzamide and the validamycin are mixed according to a proportion of 1:5 to serve as a bacteriacide composition, ternary compounding is carried out on the bacteriacide composition and the prochloraz according to different proportions, and results prove that bacteriostatic effects are best when the the thifluzamide, the validamycin and the prochloraz are compounded according to a proportion of 1:5:2. On the basis, the bacteriacide composition, namely a 16% thifluzamide-validamycin-prochloraz suspending agent is prepared to be used for preventing the main diseases of the rice, wherein a content of the thifluzamide is 2%, a content of the validamycin si 10%, and a content of the prochloraz is 4%. The bacteriacide composition can effectively prevent the main diseases of the rice such as rice sheath blight diseases, rice blasts and false smuts. A plurality of main diseases of the rice can be concurrently cured through one drug application simultaneously, and the bacteriacide composition is favorable for delaying of resistance to drugs, reduces drug application cost, is simple in operation, saves labor and drugs, and has good application prospects.

The invention provides a rice Rhizoctonia solani effector gene AG1IA10434, which has a nucleotide sequence as represented by SEQ ID NO. 1. To research the gene provided in the invention, a molecular target of a novel pesticide can be designed according to the structure and the function of the gene in practice; and acceptor protein genes of effector protein in cells of hosts like paddy rice can beknocked out or be subjected to mutation so as to obtain a species with durable disease-resistance. The invention is beneficial for establishment of a molecular detection system for pathogenicity variation of natural Rhizoctonia solani population, for research of distribution situations of the Rhizoctonia solani effector gene in field natural population, for reveal of composition and variation characteristics of microspicies in the Rhizoctonia solani population and for resistance identification and reasonable arranging and replacing of rice species so as to realize effective control of sheath blight.

The invention provides a paddy rice Rhizoctonia solani effector gene AG1IA010188 which has the nucleotide sequence shown in SEQ ID NO.1. According to the invention, in practice, a molecular target of a novel pesticide can be designed according to the structure and functions of the gene; the acceptor protein gene of the effector protein in paddy rice and other host cells is deleted or mutated to obtain a durable resistant variety; the invention is helpful for establishing a molecule detection system of Rhizoctonia solani natural population pathogenicity variation, studying the distribution of the Rhizoctonia solani effector gene in field natural populations, revealing the composition and variation characteristics of microspecies in Rhizoctonia solani populations, and is help for disease resistance identification and reasonable distribution and rotation of the paddy rice varieties to effectively control the occurrence of sheath blight.