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 relates to a method for preventing and controlling environmental microbial pollution by an antibiotic-loaded bifunctional active nanofiber membrane. The method includes the preparation of electrospun fiber membrane and the process of using it to inhibit the growth of microorganisms; using the immobilized antibiotic active electrospun fiber membrane prepared by different emulsifiers to inhibit the growth of microorganisms in air conditioners of different specifications, the results show that the The method combines the electrospinning technology and the combined use of antibiotics, which has a highly effective antibacterial effect, and solves the shortcomings of it cannot be recycled and easily lost. With the help of in-situ high-voltage electrospinning technology, electrospun active fiber membranes can be loaded on the surface and inside of indoor electrical appliances to achieve functional protection of key positions prone to pathogenic microorganisms, providing long-lasting, durable and stable Antibacterial and sterilizing ability.

The invention discloses a c DNA (Complementary Desoxvribose Nucleic Acid) of a cotton bollworm COPI Beta gene and an application of the c DNA. A COPI Beta si (Small Interfering) RNA of a cotton bollworm is designed and synthesized, so that the expression of the COPI Beta gene is blocked after the COPI Beta si RNA is fed to the cotton bollworm, thus the death rate of the cotton bollworm is improved. Therefore, the biological prevention and control of the cotton bollworm is realized.

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.

A kind of E78-C gene cDNA of cotton bollworm ecdysone regulatory factor, clones the ecdysone-inducible factor E78-C gene from cotton bollworm, and designs primers for the ecdysone-induced factor E78-C gene of cotton bollworm, selects SEQ ID NO. The 658-1122 position in 1 was used as the E78-C target gene fragment to synthesize dsRNA, and then the synthesized dsRNA was delivered to the body cavity of cotton bollworm by microinjection, and the green fluorescent protein (GFP) was used as the control group, and the dsRNA after injection was counted. The amount of eggs laid by cotton bollworm shows that the E78-C gene of cotton bollworm is used as the target gene for interference, and the injection interference is performed on the cotton bollworm to silence the transcription and expression of the gene, thereby inhibiting the development of the ovary of the cotton bollworm, reducing the amount of eggs laid, and then controlling its population; and The risk of pest resistance is low, which provides a theoretical basis for the creation of new biopesticides and plant insect-resistant genetic engineering.

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 paddy field herbicide composition which comprises the following active ingredients: mesotrione A, a cyclic imide herbicide B and a paddy field herbicide C, wherein the cyclic imide herbicide B is selected from oxadiazon, oxadiargyl or pentoxaxone, and the paddy field herbicide C is selected from bensulfuron methyl, halosulfuron methyl, pyriftalid, pretilachlor, butachlor, mefenacet, penoxsulam, prometryn or simetryn. The paddy field herbicide composition is used for preventing and controlling annual and perennial weeds in paddy fields. The composition has an obvious synergistic or additive effect for controlling weeds in the paddy fields in a certain matching range, and the effect of preventing and controlling annual weeds in the paddy fields is obviously better than that of each single dose. The weed removing spectrum is expanded, the dosage is reduced, the herbicide cost is reduced, and the adverse effect of pesticides on the ecological environment is reduced.

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.