30results about How to "Reduced risk of developing resistance" patented technology

The invention discloses myzuspersicae hunchback gene cDNA and an application thereof; the cDNA of a key gene of hunchback (Mphb) for myzuspersicae embryonic development is transferred to a plant so as to obtain a transgenic plant which expresses Mphb dsRNA and inhibits myzuspersicae reproduction; when a myzuspersicae takes the transgenic tobacco, the expression of Mphb is inhibited; the embryonic development of the myzuspersicae is blocked; the daily mean myzuspersicae producing number is decreased; the reproductive capacity is reduced; and thus the myzuspersicae hunchback gene cDNA can be used for myzuspersicae biological control.

The invention relates to the field of pesticide preparations, and provides a bactericide, in particular to a sterilizing composition. The sterilizing composition comprises the following active ingredients of nikkomycin and dioctyl divinyltriamino glycine according to the mass ratio of (1 to 30) to (3 to 1), wherein the total mass of the two components is equal to 2 to 60% of the composition. Compared with single agent, the bactericide has the advantages that the number of action mechanism and dots is more, the synergism function is obvious, the generation and development of drug resistance of pathogenic bacteria are effectively delayed, the absolute usage amount of pesticide is reduced, the cost is reduced, and the pollution to environment is reduced.

The invention discloses a bactericidal composition containing triclopyricarb and thifluzamide. The bactericidal composition consists of active components of triclopyricarb and thifluzamide in the mass ratio of 20:1-1:20, and the active components account for 5-60%. The bactericidal composition provided by the invention has high bactericidal activity, and delays the emergence and development of pathogen resistance, and reduces the dosage of prevention in actual production, and has the advantages of economical performance, high efficiency, safety and environment-friendliness. The bactericidal composition provided by the invention has good control effect on a variety of crop diseases, particularly significant control effect on rice sheath blight disease.

The invention discloses a bactericidal composition containing thiabendazole and thiabendazole, the active components of the bactericide composition are thiabendazole and thiabendazole, and the mass ratio of thiabendazole and thiabendazole is 1 : 20 to 20:1, the mass percentage of active components in the composition is 5-60%. The bactericide composition of the present invention has high bactericidal activity, delays the generation and development of drug resistance of pathogens at the same time, and reduces the amount of control medication in actual production, and is economical, efficient, safe and environmentally friendly. The invention has good control effects on various crop diseases, and the control effect on rice sheath blight is particularly remarkable.

The invention discloses a bacterial composition containing oxalate diacetonamine copper and a benzimidazole bactericide. The bacterial composition comprises a first active ingredient and a second active ingredient. Weight ratio of the first active ingredient to the second active ingredient is 1:15-15:1. The first active ingredient is oxalate diacetonamine copper. The second active ingredient is one ingredient selected from thiophanate methyl, carbendazim, benomyl and thiabendazole. The composition can be made up into water dispersible granules, a wettable powder, a suspending agent or a dispersible oil suspension which is allowed for use in agriculture, and has a good effect of controlling powdery mildew of cucumber, cucumber downy mildew, botrytis cinerea, tomato early blight, apple altermaria leaf spot, apple brown spot, apple mildew or potato late blight. By the use of the bacterial composition, the problem that oxalate diacetonamine copper or the above benzimidazole bactericide has non-ideal control effects when separately used is solved effectively. By two-component compounding, the bacterial composition has remarkable synergism and has good safety for crops, and resistance risks and drug delivery costs are reduced.

The invention relates to a composition for controlling a diamondback moth of a brassicaceous vegetable and a preparation and application thereof. The composition contains two active components of chlorfenapyr(4-brombutyl-2-(4-chlorphenyl)-1-(ethoxymethyl)-5-(trichloromethyl)pyrrole-3-nitrile) and pyriproxyfen(4-phenoxylphenyl(RS)-2-(2-pyridyloxy)propyl ether), and the weight ratio of chlorfenapyrand pyriproxyfen is between 1:4 and 4:1. The composition preparation can be prepared from the composition with effective dosage, solid or liquid carriers, an auxiliary agent and other additives by a conventional method and used for processing the diamondback moth or a habitat thereof of the brassicaceous vegetable. The composition overcomes the defects of the prior art, expresses obvious synergy,can show optimal contact killing performance, stomach poisoning performance and ovicidal effect by processing the diamondback moth of the brassicaceous vegetable through applying smaller dosage, has long effect duration and simultaneously strengthens the rapid killing activity on the diamondback moth.

The invention provides a bactericide, and particularly provides an agriculturally bactericidal composition. The composition comprises two components: 2-cyano-3-phenyl-3-aminoethyl acrylate and ethylicin, wherein the mass ratio of the components I to the component II is (1:5)-(30:1), and the total mass of the two components takes up 5%-80% of that of the composition. The composition is low in toxicity, slight in damage to people and livestock and ecological environment, and capable of delaying the generation and development of pathogen drug resistance, and has high prevention and treatment effects on the crop disease caused by fusarium, especially on wheat fungoid disease. The bactericidal composition has wide application prospects.