119results about How to "Good insect resistance" patented technology

The invention discloses a litsea cubeba oil microcapsule and a preparation method thereof, and belongs to the technical field of mouldproof and insecticidal capsules. The litsea cubeba oil microcapsule is characterized by being prepared by the complex coacervation of litsea cubeba oil taken as a core material, sodium alginate taken as a main wall material and an aqueous solution which contains 1% to 5% of chitosan and 2% to 5% of anhydrous calcium chloride and is taken as a coagulating bath solution, wherein the mass ratio of the sodium alginate to the litsea cubeba oil is 1:(1-4). The preparation method mainly comprises the following steps: firstly preparing an emulsion A of the sodium alginate and the litsea cubeba oil; then preparing the aqueous solution of the chitosan and the anhydrous calcium chloride as the coagulating bath solution B; dripping the emulsion A into the coagulating bath solution B; and solidifying the mixture for certain time and then filtering the mixture, thereby obtaining the litsea cubeba oil microcapsule. Thus, the litsea cubeba oil microcapsule which is high in litsea cubeba oil content, long in service time and good in mouldproof and insecticidal effect and the preparation method of the litsea cubeba oil microcapsule are provided. The litsea cubeba oil microcapsule is mainly used for performing mouldproof and insecticidal functions on grains as well as on clothes.

The invention discloses a mothproof veneer board, a mothproof faced veneer board and a manufacturing method thereof, relating to veneer boards used for industries of building materials, furniture, interior decoration, and the like. The mothproof performance of the existing veneer boards and faced veneer boards is reduced because of reducing the usage amount of free formaldehyde. In the invention,adhesive containing a pyrethroid moth proofer is coated on the surface of a dried veneer, and then processes of assembly, pressing and molding are carried out, wherein the pyrethroid moth proofer is in a microcapsule shape, and the weight ratio of the pyrethroid moth proofer to the adhesive is (0.15-1.0):100. An obtained product has good mothproof performance and long service life.

The invention provides a corn and soybean narrow strip channel intercropping planting method. The method comprises the following steps that corn and soybeans are sown at the same time, an intercropping planting mode is adopted to the corn and the soybeans, every 2-3 rows of the corn form a corn planting row, 3-5 rows of the soybeans are planted between every two adjacent corn planting rows, and the soybeans and the corn are the same in the planting direction; the corn row spacing, the soybean row spacing and the distance between the adjacent soybeans and the corns are equal. By scientifically and reasonably determining the planting distance of the corn and the soybeans, interaction between the corn and the soybeans is enhanced, the radiation light condition needed by the corn and the soybeans in the intercropping group are met fully, and therefore the purpose of increasing the yield of the corn and the yield of the soybeans is achieved.

To provide an Italian rye grass with excellent characteristics, and in particular, excellent insect resistance and disease resistance, an endophyte, which is a filamentous endophytic fungus living together with a wild plant occurring in nature, is isolated and artificially grown, and made to live symbiotically in Italian rye grass by inoculating and infecting the grass with the artificially grown endophyte.

The invention relates to an excrement insect culture device capable of automatically separating insects from excrement and a culture method thereof. The device and the method are used for culturing maggot excrement and insect excrement in a large amount and capable of achieving automatic separation of insect excrement. The culture device mainly comprises a culture pool, the bottom of the culture pool is of a gravel cement structure, the peripheral wall of the culture pool is of a brick mixing structure, the pool face of the culture pool is provided with a slope, two sides are high, and the middle is low. A water discharge pipe as long as the culture pool is embedded under the low middle of the culture pool, sewage discharge holes vertically connected with the water discharge pipe are arranged above the water discharge pipe at intervals, and an insect collection bag capable of leaking water is sleeved in the sewage discharge holes. A row of plate blocks are arranged above the middle water discharge pipe of the culture pool, the laying length of the plate blocks is identical with that of the culture pool, and excrement is arranged in ridge in the culture pool. The excrement insect culture device has the advantages of reducing device construction cost of insect culture by excrement, reducing employment cost, improving insect breeding efficiency and being high in space utilization ratio, simple in structure, capable of conducting mechanical large-scale production, capable of automatically separating insect and excrement and conveniently collecting insects, easy in cleaning and the like.

A preparation method for a carbon-plastic fiber composite material comprises the steps: (1) selecting carbon powder, baking to dry and storing at a dry place before mixing, and selecting plastic coming from one of high density polyethylene, polyvinyl chloride, polypropylene, PET, ABS and ultrahigh molecular weight polyethylene; (2) getting carbon powder, thermoplastic plastic, an auxiliary agent and basalt fiber according to the ratio of 80:16:3:1, 70:26:3:1, 60:36:3:1 or 50:46:3:1; and (3) pouring the mixture obtained in the step (2) into an extruder, conveying hot blank plates formed through extrusion by a rotating conveyor, and cooling and cutting during conveying. The material is wide in raw material source, simple in manufacturing technology, simple in equipment, low in cost, stable in dimension, excellent in flame resistance, resistant to mildew and corrosion, good in pest resistance and recyclable.

The invention relates to a building material for home furnishing, in particular to a method for manufacturing a moth-proof and low-formaldehyde wardrobe plate. The method for manufacturing the moth-proof and low-formaldehyde wardrobe plate is characterized by comprising the steps of lathing a plank into pieces, conducting drying, trimming edges, applying adhesive, conducting prepressing, conducting hot-pressing, sanding cut edges, conducting moth proofing treatment, attaching abrasion resistant paper, conducting decoration veneering and sealing the edges. According to the method for manufacturing the wardrobe plate, the formaldehyde residual amount is small, an aluminum alloy frame is inlaid at the periphery of the wardrobe plate, moisture in the air can be effectively prevented from permeating the plate, the moisture resistance and water resistance of the wardrobe plate are improved, the wardrobe plate obtained through the manufacturing method has good moth prevention performance, mold prevention performance, moisture protection performance and abrasion resistant performance, the formaldehyde residual amount is small, damage to a human body is reduced, the obtained wardrobe plate is stable in quality, the dimension stability is good, the plate is not prone to being cracked, damaged or deformed, and the service life is long.

The present invention discloses a water retention fertilizer for peanut planting, wherein the water retention fertilizer is characterized in that raw materials comprise, by weight, 8-10 parts of urea, 20-30 parts of tea leaf residue, 8-12 parts of iron slag, 3-5 parts of a filler, 5-7 parts of plant ash, 0.6-0.8 part of abamectin, 0.3-0.5 part of an microorganism bacterial agent, 2-4 parts of potassium chloride, 2-4 parts of magnesium sulfate, 3-5 parts of zinc nitrate, 2-4 parts of manganese phosphate, 1-2 parts of ferrous sulfate, 0.8-1.2 parts of copper sulfate, 3-4 parts of boric acid, 2-3 parts of sodium tripolyphosphate, 1.2-1.4 parts of lysine, 3-5 parts of humic acid, and 3-5 parts of an auxiliary agent. According to the present invention, the water retention fertilizer has beneficial effects of soil structure improving, soil gas permeation improving, soil fertility improving, and soil water retention capacity improving; the abamectin in the adhesive provides the significant effects of insect disinfestation and pest prevention so as to substantially reduce the harm of nematodes; and the water retention fertilizer further has effects of soil pH value balance adjusting, plant root microenvironment improving, plant disease resistance and stress resistance enhancing, reasonable nutrient ratio, high fertilizer efficiency, significantly-improved crop fertilizer absorption, and achievement of strong disease resistance and stress resistance of roots.

The invention discloses a brown planthopper gene Nl19243 as well as an encoding product and application thereof. The gene Nl19243 has the DNA sequence shown in SEQ ID No. 1. The DNA sequence is composed of 787 nucleotide bases and contains a complete encoding frame composed of 654 nucleotides, and the coded proteins contains a small-molecular protein with 217 amino acid residues. Research finds that the gene is related to the survival of brown planthopper. An RNAi vector for the Nl19243 is constructed and then is transferred into rice to express dsRNA of the gene Nl19243 in a transgenic rice body, so as to achieve the purpose of improving the resistance of rice to brown planthopper. The brown planthopper gene Nl19243 can be widely applied to crop breeding, particularly breeding of insect-resistant rice.

An insect-proofing and antibacterial finishing agent for fabric comprises the following raw materials by weight: 10-12 parts of tetrachloro dihydroxy triphenylmethane sodium sulfonate, 5-8 parts of ethyl p-hydroxybenzoate, 6-8 parts of 2-[2-(2-aminophenoxy)ethoxy]phenylamine, 1-5 parts of sucrose fatty acid ester, 50-70 parts of ethylene glycol and 68-74 parts of water. The sucrose fatty acid ester is sucrose laurate or sucrose dilaurate. The insect-proofing and antibacterial finishing agent for fabric provided by the invention has substantial pest control effect, and can effectively repel insects and protect the integrity of the fabric. The invention also has good antibacterial property, and can inhibit the growth of bacteria and mold; and the invention has reasonable formula, no toxic or side effect on the human body, and can be popularized and applied.

The invention relates to a method for producing white wash wood floor, wherein it comprises A, selecting floor blank material, that using the ones whose water content lower than 12%; B, shaping the blank that boring the blank into smooth plate, opening groove on it into semi-product; C, baking finish that baking finish on the surface; D, oil process that processing oil high-temperature wood fiber treatment; E, distantly reducing temperature, and checking water quality and packing the product. The invention can fully utilize the character of wood fiber cell, while the floor can absorb water quickly, without deformation.

The invention relates to a Chinese cabbage planting method. The Chinese cabbage planting method includes the following steps that 1, seeds are selected and pretreated; 2, the seeds are thoroughly flushed with clear water and then are subjected to soaking treatment by using an ammonium bicarbonate solution; 3, the seeds treated in the step 2 are dried at the temperature of 35-38 DEG C till the moisture content reaches 60-62% and are cultured at the temperature of 22-25 DEG C for 2 days; 4, the seeds treated in the step 3 are planted in land, the seed burying depth is 0.5-1 cm, and watering is performed by using the sodium bicarbonate solution 2 days later after planting; 5, weeding and insect prevention operations are performed after seed budding. According to the Chinese cabbage planting method, the treatment starts from seed treatment, adopts different treating agents for seeds and is carried out at different temperatures, the germination rate of Chinese cabbages is improved, and the nutritional value of the Chinese cabbages is improved.

The present invention discloses a composing prescription of a compound ivermectin injection and a preparation method of the compound ivermectin injection, and belongs to the veterinary medicine technology. The compound ivermectin injection comprises main drugs, a solvent and an antioxidant so as to prepare the stable high-concentration compound ivermectin injection. The injection has characteristics of advanced technology, good stability, broad spectrum, high efficiency, low irritation on the injected site, easy use, and clinical efficiency superior to the single-formula injection. According to the present invention, the raw materials comprise 0.5-5.0% of ivermectin, 2-20.0% of mebendazole, 0.5-5.0% of levamisole hydrochloride, 0.1-1% of the antioxidant, and the balance of the solvent, wherein the antioxidant is one or a mixture selected from thiourea, L-cysteamine hydrochloride, vitamin C, ethylenediamine, sodium hydrogen sulfite, anhydrous sodium sulfite, sodium formaldehydesulfoxylate dihydrate, sodium metabisulfite and the like, and the solvent is one or a mixture selected from propylene glycol, ethanol, glycerol, glycerol formal, dimethylformamide, dimethylacetamide, 2-pyrrolidone and the like.

The invention belongs to the technical field of biology, and particularly relates to a marine nannochloropsis oculata transcriptional activation CRISPRa system and a construction method and application thereof. The system vector contains a Cas9 inactivated protein, a transcriptional activation effect protein VP64, a resistance selection marker gene, at least one gRNA scaffold sequence and a specific sequence for enhancing transcriptional activation (SunTag sequence). The invention also provides the application of the CRISPRa vector for the transcription activation of the nannochloropsis oculata gene in gene transformation. The invention provides a new model and a feasible method for gene function research of nannochloropsis oculata.