51 results about "European corn borer" patented technology

A method of preventing damage to the shoots and foliage of a plant by a pest includes treating a seed having an exogenous gene that encodes for the production of a protein having activity against European corn borer or corn root worm with a composition comprising at least one pyrethrin or synthetic pyrethroid that is selected on the basis of having an activity against an insect other than European corn borer or corn root worm. Treated seeds are also provided.

The invention discloses a corn planting and cultivating method. The corn planting and cultivating method includes the following steps of selecting a corn variety and conducting soil preparation before planting, arranging wide rows and narrow rows at intervals, sowing corn, completing sowing, pipe paving, film paving and soil covering through an air suction type precision seeder, and conducting field management in the seedling stage, the ear stage and the flower stage, wherein the width of each wide row ranges from 85cm to 95cm, the width of each narrow row ranges from 25cm to 35cm, a drip irrigation zone is paved in the middle of each narrow row. According to the corn planting and cultivating method, due to the fact that the method that the wide rows and the narrow rows are arranged at intervals is adopted, the number of drip lines which are used can be lowered. Modifiers are sprayed in the early period of the field management in the seedling stage to control the plant height and the ear position, and the defect that through a conventional planting method, the corn easily falls over due to the fact that the plant height is large and the ear position is high is overcome. Pesticide is sprayed through a self-propelled high-stalk crop boom sprayer in the middle and later period of management to control pests, the influences of natural disasters on corn growth are reduced, and the influences on productivity caused by a large number of European corn borers, cotton bollworms, aphids, leafhoppers and red spiders appearing after corn jointing are eliminated.

The invention discloses a substituent ether compound which is structurally shown as a general formula (I): the definition of each substituent group refers to an instruction manual. The compound has the broad-spectrum insecticidal activity, is very effective to lepidoptera pests including European corn borers, sugarcane borers, summer fruit tortrix moths, apple budworms, tussock moths, rice leaf rollers, corn borers, tobacco leaf worms, small budworms, cabbage moths, lesser corn worms, cotton leaf worms and the like, particularly has better activity to the cabbage moths and the lesser corn worms and can obtain good effect under the low dosage. The substituent ether compound also has high activity to homoptera pests like aphids and the like. Meanwhile, a part of compound also has good bactericidal activity and can be used for preventing and treating blumeria graminis, cucumber downy mildew, vegetable gray mold and the like.

The present invention relates to the isolation and characterization of nucleotide sequences encoding novel insecticidal proteins secreted into the extracellular space from Bacillus thuringiensis and related strains. The proteins are isolated from culture supernatants of Bacillus thuringiensis and related strains and display insecticidal activity against lepidopteran insects including European corn borer (ECB), tobacco budworm (TBW) and diamondback moth (DBM). Insecticidal proteins encoded by nucleotide sequences that hybridize under stringent conditions to the isolated and characterized nucleotide sequences are disclosed. Methods are disclosed for making and using transgenic cells and plants comprising the novel nucleotide sequence of the invention.

Novel Vip3C toxins that are highly active against European corn borer and other lepidopteran insect pests are disclosed. The Vip3C toxins can be expressed in various prokaryotic and eukaryotic organisms including plants to control lepidopteran insects in various environments.

The invention discloses a substituent ether compound which is structurally shown as a general formula (I): the definition of each substituent group refers to an instruction manual. The compound has the broad-spectrum insecticidal activity, is very effective to lepidoptera pests including European corn borers, sugarcane borers, summer fruit tortrix moths, apple budworms, tussock moths, rice leaf rollers, corn borers, tobacco leaf worms, small budworms, cabbage moths, lesser corn worms, cotton leaf worms and the like, particularly has better activity to the cabbage moths and the lesser corn worms and can obtain good effect under the low dosage. The substituent ether compound also has high activity to homoptera pests like aphids and the like. Meanwhile, a part of compound also has good bactericidal activity and can be used for preventing and treating blumeria graminis, cucumber downy mildew, vegetable gray mold and the like.

The invention discloses an artificial medium of trichogramma. The artificial medium comprises the following ingredients in mass fraction: 19-40% of insect pupae hemolymph, 17-38% of egg yolk, 10-33% of milk, 4-19% of a Nissl salt solution, 0.8-8% of trehalose, 2-15% of a ganoderan solution with a mass fraction of 5% and 2-15% of a chitosan oligosaccharide solution with a mass fraction of 3.6%. By adopting the artificial medium of trichogramma, the breeding effect of trichogramma is obviously better than that of a traditional artificial medium through the trehalose, the ganoderan solution and the chitosan oligosaccharide solution via effective composition, and the content of insects can be reduced, so that the breeding cost of trichogramma is reduced. Through the artificial medium of trichogramma, trichogramma can be bred by subculturing, no degradation phenomenon exists, and the breeding effect is stable. By adopting the artificial medium of trichogramma, various kinds of trichogramma such as trichogramma dendrolimi, trichogramma confusum, Asian corn borer trichogramma, European corn borer trichogramma and geographical populations thereof can be bred, and good effects are realized.

A method for preventing and eliminating corn borer by using trichogramma releasing box includes such steps as proportionally mixing two kinds of tussah ova containing the parasitic trichogramma and with different developing time, quantitatively packing in boxes, and orderly arranging them in corn field.

The invention discloses a method for preventing and controlling damage of stem borers and relates to the technical field of biological prevention and control of the damage of the stem borers. The method for preventing and controlling damage of the stem borers comprises the following step: releasing a mixture of trichogramma eggs and beauveria spore powder to a target prevention and control area soas to prevent and control target stem borers, wherein the target stem borers are european corn borers or rice stem borers; the mixture released to the target prevention and control area every time per hectare contains 12000-15000 trichogramma eggs and 0.18-0.2g of beauveria spore powder. The method disclosed by the invention has the beneficial effects that by control for the proportion of the trichogramma eggs and the beauveria spore powder, the damage of the stem borers can be effectively controlled, and the use times and the use amount of pesticide and beauveria can be reduced, so that notonly is the labor intensity of farmers reduced, but also the prevention and control cost is reduced, the effects of increasing the yield and the income of the farmers and improving the quality of agricultural products are realized, and the ecological, social and economic benefits are good.

The invention discloses a complex microbial inoculant for straw compost maturity and european corn borer prevention, as well as preparation and application of the complex microbial inoculant. The complex microbial inoculant comprises a mixed strain and an additive, wherein the mixed strain comprises trichoderma harzianum, bacillus licheniformis and beauveria bassiana, and is prepared by the following steps: inoculating three bacterial strain test tube slant culture media subjected to purification and rejuvenation to corresponding fluid nutrient media respectively, performing fermentation to obtain liquid strains, inoculating the three fermented fluid strains into a solid culture medium, culturing for 48-72h at the temperature being 28-30 DEG C, dying, and crushing; the additive comprises glucose, superphosphate and humic acid; the mixed strain and the additive are mixed according to a mass ratio being (2.0-8.0):1.0 so as to obtain the complex microbial inoculant. The mixed strain and the additive are mixed so as to play a relatively good synergy role; the complex microbial inoculant has the capabilities of increasing the speed of straw compost maturity, killing european corn borer larvae and pupae, reducing the incidence of european corn borer, reducing the harm, improving granhle soil structures, increasing the fertilizer utilization rate and playing a yield increasing role.

The invention provides an early ripening maize high-yield cultivation technology, belongs to the field of agriculture, and especially relates to a maize cultivation technology. The invention provides the early ripening maize high-yield cultivation technology which is fast in grouting and full in particles. The early ripening maize high-yield cultivation technology is characterized by comprising the following steps: 1, processing seeds and selecting seeds, pelleting seeds, using a seed coating to coat, to prevent and control pest and disease damages; 2, sowing and conserving seedlings: (1) ensuring soil moisture and sowing in proper moisture in soil, appropriately sowing early, on 5-10 cm land, when ground temperature being constant at 8 DEG C, sowing, to prevent sowing too late; 3, applying fertilizer and irrigating, according to target yield and foil fertility, determining fertilizer and water safeguard measures, to strictly guard against drought, especially paying attention to moisture supply in a critical period; 4, controlling pests and diseases later, in a belltop stage, using 10 ml chlorantraniliprole.thiamethoxam, 15 ml Ainong, and 30 kg water in each mu, spraying on stem leaves, to prevent European corn borers, oriental armyworms, aphids, and leaf spot diseases, rust disease, and gall smut, etc.

The invention discloses a remote monitoring trapping instrument. The remote monitoring trapping instrument comprises a trapping and killing pot which is supported by the ground through a telescopic pull rod. A plurality of liquid storage bottles are arranged at the bottom of the trapping and killing pot and are internally provided with portable uninterruptible power sources or anion water. A poisonous bee insecticide card objective table is arranged at the bottom of the trapping and killing pot. A remote image collecting system supporting rod penetrates through the center of the trapping and killing pot and is provided with a remote image collecting system. According to the remote monitoring trapping instrument, the visual information including the peak time of appearing of target pests and the time of insecticide releasing can be directly informed to farmers, and fixed point, position and direction and timing are achieved on target pest preventing and controlling. The remote monitoring trapping instrument can be widely applied to preventing and treating crop pests such as european corn borers, cotton bollworms, beet armyworms, rice borers, yellow cutworms, cabbage caterpillars, plutella xylostellas, tung tree inchworms and euproctis pseudoconspersa strands.

The invention provides an insecticidal protein Cryl A. 301 which has 1) an amino acid sequence shown by SEQ ID No.2; or 2) an amino acid sequence which is obtained by substituting the amino acid sequence shown by SEQ ID No.2 or decreasing and or increasing one or more amino acid(s) of the amino acid sequence shown by SEQ ID No.2, and has the same function. The experiment in vitro proves that the reformed and synthesized Bt gene toxin production protein has remarkable insecticidal effect for european corn borer. The insecticidal protein Cryl A. 301 can be efficiently expressed in monocotyledons, thus being used for producing insect-resistant transgenic plants.

The invention relates to an imidacloprid composition, a preparation method and application thereof. The imidacloprid composition belongs to a synergistic desinsection composition and is a mixture containing a compound (A) and a compound (B). The synergistic desinsection composition can be used for controlling various pests of armyworms (subtropic armyworms, meadow armyworms, yellow striped armyworms, western yellow striped armyworms), cotton bollworms, tomato Zeuzera leuconotum Butlers, tomato grapholitha inopinata heinriches, hawkmoths, garden webworms, potato moths, diamond back moths, cabbage loopers, noctuids, Spodoptera exigua Hubner, Laspeyresia pomonella, Carposina niponensis Walsingham, Grapholitha molesta Busck, Choristoneura rosaceana, Adoxophyes orana Fischer von Rosleratamm, spot leaf miners, apple leaf miners, rice-stem borers, Scirpophaga incertulas, pink rice borers, Cnaphalocrocis medinalis Guenee, cabbage caterpillars, European corn borers, Asian corn borers, melon worms, Diaphania indica Saunders, Diaphania nitidalis, oriental tobacco budworms and the like. The controlling efficiency of the imidacloprid composition is higher than that of the compound (A) or the compound (B).

The subject invention includes methods and plants for controlling European corn borer, said plants comprising a Cry1Ab insecticidal protein and a DIG-3 insecticidal protein to delay or prevent development of resistance by the insect.

The invention discloses an insecticidal composition containing metaflumizone and cyantraniliprole. The composition is mainly characterized in that: the composition includes the active ingredients of metaflumizone and cyantraniliprole, the balance being additives, wherein the weight ratio of metaflumizone and cyantraniliprole is 1:80-80:1. The composition can be made into a wettable powder, a water dispersible granule, a suspending agent, a suspoemulsion, a water emulsion and a microemulsion. The composition of the invention can control a variety of pests, and has obvious synergies, expands insecticidal spectrum, and has high activity for rice leaf folder, striped rice borer, tryporyza incertulas, cabbage caterpillar, asparagus caterpillar, prodenia litura, european corn borer and cotton bollworm on rice, vegetables, corn, cotton and fruit trees. The composition helps to reduce insecticidal dosage, reduce insecticidal residues on crops, reduce environmental pollution, and is safe for human and animals, is good in environmental compatibility, and is not easy to produce pest resistance.

The subject invention includes methods and plants for controlling European corn borer, said plants comprising a CrylAb insecticidal protein and a DIG-3 insecticidal protein to delay or prevent development of resistance by the insect.

The invention discloses an amide-type compound as well as a preparation method and an application thereof. The structure of the amide-type compound is shown as a general formula I: each substitutional group is defined as an instruction book. The amide-type compound has broad spectrum insecticidal activity, is very effective to Lepidoptera pests comprising European corn borers, sugarcane borers, codling moths, laspeyresia pomonellas, gypsy moths, rice leaf rollers, corn borers, tobacco leaf moths, small fruit borers, diamond back moths, asparagus caterpillars, prodenia lituras, and the like, and has better activity for the asparagus caterpillars and the prodenia lituras, thereby achieving good effect with low dose. Meanwhile, part of the compound also has good sterilizing activity and can be used for preventing and treating rice blast, tomato late blight, cucumber downy mildew and vegetable gray mold.

The invention discloses construction of a pest-resistant gene T-DNA vector and application thereof. A compound promoter is used for promoting expression of a pest-resistant gene; the compound promotercontains a cauliflower mosaic virus (CaMV) 35S promoter and an intron sequence of rice actin Actin1; the pest-resistant is formed by connecting Cry1Ab and Vip3A through a connecting peptide. After being built, a recombinant vector is transferred into corn, so that the expression volume of pest-resistant protein in transgenic maize is obviously increased. The recombinant vector disclosed by the invention can be used for preparing cells of a pest-resistant plant; the pest-resistant plant comprises maize, rice and the like. A transgenic plant transformed from the recombinant vector disclosed bythe invention can efficiently kill main lepidoptera pests such as armyworm, prodenia litura, european corn borer, cotton bollworm and beet armyworm.

The present invention relates to the isolation and characterization of nucleotide sequences encoding novel insecticidal proteins secreted into the extracellular space from Bacillus thuringiensis and related strains. The proteins are isolated from culture supernatants of Bacillus thuringiensis and related strains and display insecticidal activity against lepidopteran insects including European corn borer (ECB), tobacco budworm (TBW) and diamondback moth (DBM). Insecticidal proteins encoded by nucleotide sequences that hybridize under stringent conditions to the isolated and characterized nucleotide sequences are disclosed. Methods are disclosed for making and using transgenic cells and plants comprising the novel nucleotide sequence of the invention.

The invention provides a pinellia ternata extract containing plant pesticide special for corns in saline and alkaline land and a preparation method thereof. The pesticide is prepared from, by mass, 13-20 parts of profenofos, 1-4 parts of pinellia ternata, 0.7-2.5 parts of narrow-leaf mohonia fortunei extract, 1.2-2.5 parts of diethofencarb, 0.5-1.6 parts of scopolamine, 0.7-2.5 parts of copper sulfate, 3-7 parts of an emulsifier, 5-10 parts of an activating agent and 16-23 parts of an organic solvent. The invention further provides application of the pesticide in saline-alkali land for corn planting. The pinellia ternata extract containing plant pesticide has the advantages that the prepared pesticide has the effect of preventing and controlling pests in the corn planting land and has the remarkably preventing effect on common pests in the corn planting land, such as European corn borers, mythimna separata, aphids, corn leaf mites and cotton bollworm. The prepared pesticide has the same preventing and controlling effect on corn plant diseases while preventing and controlling the pests in the corn planting land.

The invention relates to a method for releasing mixed trichogramma species to prevent and control european corn borers and cotton bollworms. The method comprises the steps that 1, at a mixed long-acting bee card manufacturing stage, protective bee cards are manufactured, the protective bee cards are manufactured with brown paper with one hair side and a shiny side, and each protective bee card comprises 10 to 100 single bee card bodies; gelechiid moth eggs are adopted as hosts to breed trichogramma chilonis and trichogramma ostriniae; bee cards are prepared in two batches; evenly mixed parasitic bees are evenly scattered on the cards when the bee cards are prepared; 2, at a bee releasing stage, as for the bee releasing time, the first batch of bees are released at the summer corn ear stage, european corn borer emergence starts to emergence at the summer corn ear stage, and the second batch of bee are released 5 days after the first batch of bee cards are released; as for the bee releasing method, 150 single bee cards are hung in the summer corn field per hectare, the bee releasing sites are 4 m to 5 m away from the field edge, and the distance between the bee releasing sites rangesfrom 7 m to 9 m. According to the method, the bee releasing frequency can be reduced, the survival time of the trichogramma in the field is effectively prolonged, and the effect of preventing and controlling the european corn borers and the cotton bollworms is effectively improved.

The present invention relates to the isolation and characterization of nucleotide sequences encoding novel insecticidal proteins secreted into the extracellular space from Bacillus thuringiensis and related strains. The proteins are isolated from culture supernatants of Bacillus thuringiensis and related strains and display insecticidal activity against lepidopteran insects including European corn borer (ECB), tobacco budworm (TBW) and diamondback moth (DBM). Insecticidal proteins encoded by nucleotide sequences that hybridize under stringent conditions to the isolated and characterized nucleotide sequences are disclosed. Methods are disclosed for making and using transgenic cells and plants comprising the novel nucleotide sequence of the invention.

The invention discloses a pesticide composition containing picoxystrobin and pyrethroids, a preparation and an application thereof. The pesticide composition contains an active ingredient A, an active ingredient B and an auxiliary agent. Weight ratio of the active ingredient A to the active ingredient B is 1: 80-90: 1. The active ingredient A is picoxystrobin. The active ingredient B is one selected from alphamethrin, cypermethrin, bifenthrin, lambda-cyhalothrin and deltamethrin. The composition can control various plant diseases and insect pests, has an obvious synergistic effect, and has high activity to oomycete, ascomycete and deuteromycetae germs on fruit trees, flowers, cotton, tea trees and vegetables and imported cabbageworm, plutella xylostella, cabbage caterpillar, cotton bollworm, peach fruit moth, leaf miner, european corn borer, red spider, tetranychid and the like. in addition, dosage of the pesticide is minimized, residual quantity of the pesticide on crops is reduced, and environmental pollution is alleviated. The pesticide composition is safe to human and livestock, has good environmental compatibility, and is not easy to generate drug resistance for plant diseases and insect pests.

The invention discloses an insecticidal composition containing metaflumizone and butylene fipronil. The composition is mainly characterized in that: the composition includes the active ingredients of metaflumizone and butylene fipronil, the balance being additives, wherein the weight ratio of metaflumizone and butylene fipronil is 1:80-80:1. The composition can be made into a wettable powder, a water dispersible granule, a suspending agent, a suspoemulsion, a water emulsion and a microemulsion. The composition of the invention can control a variety of pests, and has obvious synergies, expands insecticidal spectrum, and has high activity for rice leaf folder, striped rice borer, tryporyza incertulas, cabbage caterpillar, asparagus caterpillar, prodenia litura, european corn borer, cotton bollworm, pink bollworm and fall webworm on rice, vegetables, corn, cotton and fruit trees. The composition helps to reduce insecticidal dosage, reduce insecticidal residues on crops, reduce environmental pollution, and is safe for human and animals, is good in environmental compatibility, and is not easy to produce pest resistance.

A sprayable liquid biodegradable formulation comprising biocontrol microorganisms imbedded in a dispersed starch-based bioplastic is effective for delivering biocontrol microorganisms and bioactive compounds to soil, crops and seeds and facilitating positioning of biocontrol agents in close proximity to target pests. After application with conventional spray equipment, water evaporates rapidly and the dispersed bioplastic formula remains, serving as a prolonged growth substrate for the biocontrol microorganisms. Application of the bioplastic dispersion formulation comprising Beauveria bassiana significantly reduced damages caused by the European Corn Borer in corn and the Tarnished Plant Bug in cotton. Applying a formulation of spores of a non-aflatoxigenic A.flavus isolate resulted in a 97% reduction of aflatoxin contamination of corn. The bioplastic dispersion formulation is effective in delivering crystal Bacillus thuringiens endotoxins to European Corn Borer larvae, causing 72% mortality. The sprayable bioplastic formulation protects seeds from soil-borne pathogens, thereby reducing damping-off in tomato plants by up to 85%.

The present invention relates to new Zea mays plants which are resistant to both Western Corn Rootworm (WCR) and European Corn Borer (ECB) and do not express an insecticidal protein derived from Bacillus thuringiensis. The invention is also directed to hybrids, progeny and seeds of those plants.

The invention discloses an integrated prevention method for European corn borers and relates to the technical field of crop planting. The integrated prevention method is characterized by including the steps of agricultural prevention, physical prevention and chemical prevention. The above steps are quite simple and easy to understand, low in prevention cost, short in prevention circle and applicable to immediate prevention. The integrated prevention method is simple, clear in step and reasonable in prevention.