77results about How to "To achieve the effect of prevention" patented technology

The invention discloses Acinetobacter lactucae and an application thereof to degradation of a quorum-sensing signal molecule DSF (diffusible signal factor). The invention provides a bacterial strain of Acinetobacter lactucae QL-1, the bacterial strain is preserved in a China Center for Type Culture Collection on September 11th, 2017, and the preservation number is CCTCC NO: M2017487. The bacterialstrain can employ the quorum-sensing signal molecule DSF as a sole carbon source for growth, and 2mM of DSF signal molecules can be completely degraded in 15 hours with high degradation activity andstable degradation performance. The bacterial strain QL-1 has substantial biocontrol effects for black rot caused by Xanthomonas campestris XC1, and the bacterial strain also has characteristics of fast growth speed, simple cultivation method, good adaptation capability without easy variation, and great application potential for promotion of control of pathogens which are pathogenic depending on DSF; and at the same time, the product can reduce the problem of abuse of pesticides, and provides a new thinking for biological control of plant diseases.

The invention discloses a pesticide microcapsule with an easily-adjusted release rate. The pesticide microcapsule comprises a capsule core and a capsule material; the capsule material is polyurethaneobtained by cross-linking curing of isocyanate, a polyurethane soft segment and a chain extender, and the capsule material accounts for 2%-40% by mass of the pesticide microcapsule; and the capsule core includes an oil-soluble pesticide and an organic solvent, wherein the organic solvent accounts for 0-45% by mass of the pesticide microcapsule. According to the pesticide microcapsule provided by the invention, the oil-soluble pesticide is used as the capsule core and can cooperate with the capsule material in the preparation process to form the structurally-stable pesticide microcapsule; and the capsule material is obtained by a curing cross-linking reaction of the isocyanate, the polyurethane soft segment and the chain extender, the reaction speed is easy to control, and therefore the release rate of the pesticide microcapsule can be conveniently adjusted.

The invention discloses a control method for colletotrichum gloeosporioides penz. The control method comprises the following steps: sterilizing seeds, carrying out soil treatment, carrying out pest control, weeding, pruning and carrying out tree trunk treatment. By adopting a comprehensive control method, quantity of anthrax fungi in anise field pieces can be fundamentally reduced, damage degree can be alleviated, occurrence and transmission routes can be controlled, and finally the aim of comprehensively controlling the colletotrichum gloeosporioides penz is achieved. The control method disclosed by the invention has the advantage that control effect on the colletotrichum gloeosporioides penz can reach more than or equal to 90% and is much higher than the control effect of the conventional drug, so that the control method disclosed by the invention has a broad market popularization prospect.

The invention relates to a Chinese veterinary drug for treating yellow scours of newborn piglets and a preparation method thereof. The Chinese veterinary drug comprises the following components in parts by weight respectively: 15-25 parts of Chinese pulsatilla root, 25-30 parts of double blossom, 10-20 parts of astragalus root, 10-20 parts of cyrtomium rhizome, 5-10 parts of herba houttuyniae, 5-10 parts of coptis chinensis, 5-10 parts of indigowoad root, 10-20 parts of phellodendron amurense, 5-15 parts of cortex fraxini, 5-15 parts of serpent grass and 10-20 parts of angelica. The prepared Chinese veterinary drug for treating the yellow scours of newborn piglets belongs to pure natural Chinese herbal medicines, can treat the yellow scours of the newborn piglets, adjust the balance of entrails of the piglets and enhance the immunity of the piglets, is safe and environment-friendly without drug residues, and also has an effect on strains with drug tolerance to antibiotics. The Chinese veterinary drug is good in oral taking absorption effect, simple in process and suitable for industrial production, and has the characteristics of simplicity, convenience and fastness in use; and compared with other dosage forms, the Chinese veterinary drug is more suitable for treating the yellow scours of the newborn piglets in a large-scale farm.

The invention relates to the technical field of pesticides, and particularly provides a pest and disease resistant composition containing hypersensitive protein, which comprises an active component Aand an active component B, wherein the active component A comprises Harpin protein; the active component B is selected from: amino-oligosaccharin, lentinan, nitenpyram, pymetrozine, imidacloprid, acetamiprid, dicyclanil, ethiprole, butene-fipronil, mandipropamid, fluopicolide, boscalid, fluopyram, tebuconazole, epoxiconazole, cyproconazole, tetraconazole, difenoconazole, hexaconazole, flutriafol,prothioconazole, penconazole, myclobutanil, flusilazole, propiconazole, pyraclostrobin, garlicin, and ethylicin, wherein the weight ratio of the active component A to the active component B is 100:1- 1:100; wherein the amino-oligosaccharin comprises amino-oligosaccharin with high molecular weight and amino-oligosaccharin with low molecular weight.

The invention discloses a control method for the nutrition deficiency yellows of cherries, and belongs to the technical field of fruit and vegetable cultivation. The control method for the cherry nutrition deficiency yellows achieves the purposes that operation is easy, cost is low, and the cure rate is high. According to the technical scheme, balanced fertilization of cherries is enhanced, different types of fertilizer is applied to cherry trees in the time period from the first ten days of September to the end of September, the time period before sprouting in the spring of the next year, the time period after blossom drop in spring and the time period after harvesting of cherries, the fertilizer utilization efficiency of cherries is maximum, the yellows caused by nutrition deficiency is eradicated, and the method can also be used for treating the nutrition deficiency yellows of cherries.

The invention relates to a traditional Chinese veterinary medicine for preventing and treating clostridial enteritis of piglets and a preparation method of the medicine. The medicine comprises the following components in parts by weight: 10-20 parts of coptis chinensis, 10-20 parts of scutellaria baicalensis, 5-15 parts of fructus forsythiae, 5-15 parts of honeysuckle, 10-20 parts of angelica sinensis, 10-20 parts of radix paeoniae alba, 1-5 parts of pseudo-ginseng powder, 5-15 parts of ginseng stems and leaves and 5-10 parts of liquorice. The Chinese veterinary medicine for preventing and treating clostridial enteritis of piglets belongs to natural pure Chinese medicine preparations, is high in inhibition on C-type clostridium perfringens, can treat clostridial enteritis of piglets, regulate viscera heat and improve the piglet immunity and body disease resistance, is safe, environmental-friendly and free from medicine residue, and has specific effects on clostridial enteritis of piglets in artificial infection blank models and clinical prevention and treatment experiment without side effect. The medicine is good in absorption in oral taking, simple in process and suitable for industrial production, and has the characteristics of simple use, convenience and rapidness; compared with other preparations, the medicine is suitable for prevention and treatment on clostridial enteritis of piglets in large-scale farms.

The invention provides a large-scale nasonia artificial-feeding method. Compared with the prior art, the method has advantages that by 300Gry irradiation of 2-day-old musca domestica pupae, the Muscadomestica pupae unavailable for emergence are provided under the condition that pupa structures are undamaged, so that a step of adult musca domestica treatment is saved; by adoption of CO2 for anesthesia of nasonia, host musca domestica pupae and parasitic nasonia are separated after parasitism, escape in host replacement and parasitic wasp transferring processes is avoided, and efficiency improvement and cost saving are realized; after 10-day development, the host irradiated pupae are transferred to a refrigerating chamber at the temperature of 8-10 DEG C and in humidity of 75%-85%, development of nasonia is retarded under the condition of low-temperature constant-humidity storage, and centralized storage and release of parasitic nasonia are benefited. In addition, compared with frozen musca domestica pupae, the irradiated musca domestica pupae have the advantage that natural energy parasitic nasonia bred with the irradiated musca domestica pupae serving as hosts are high in female descendant yield, and high ecological benefits are achieved.

The invention provides a water surface floatation sustained release medicament for prevention and cure of schistosomiasis, which is a granular sustained release medicament prepared from medicinal active constituent 5.0-60 wt%, solid state carrier material 30.0-90.0wt%, dispersing agent 0.1-10.0 wt%, coating agent 2.0-10.0 wt%, and hydrophobing agent 0.1-5.0 wt%.

The invention discloses lily bulb camellia nitidissima. The lily bulb camellia nitidissima is characterized by comprising 3g of burdock roots, 2g of platycodon roots, 1g of lophatherum herbs, 1g of camellia nitidissima and 3g of lily bulbs, wherein the burdock roots are used as a monarch drug of a prescription, the lily bulbs are used as a minister drug of the prescription, and the lophatherum herbs and the platycodon roots are used in combination and are both used as assistant drugs of the prescription. The lily bulb camellia nitidissima disclosed by the invention can invigorate the spleen, benefit the lung, clear heat and remove toxicity, and has the efficacy of resisting haze, resisting inflammation, resisting bacteria, enhancing immunity, removing toxicity, removing pathogenic bacteriaand resisting viruses to achieve the preventing and treating effect that strengthening vital qi and eliminating pathogenic factors are combined together.

The invention discloses a combined pollution site biological permeable reactive barrier which comprises a concrete base, a concrete top cover, a reactive barrier cavity and a reaction area filler, andthe reaction area filler comprises a phosphate-solubilizing bacillus mineralization layer, an anaerobic bacillus degradation layer and an aerobic bacillus degradation and oxygen release layer which are sequentially arranged in the seepage direction of underground water; the phosphate-solubilizing bacillus mineralization layer comprises phosphate-solubilizing bacillus, first quartz sand and phosphate ore powder; the anaerobic bacillus degradation layer comprises anaerobic bacillus, second quartz sand and first activated carbon; the aerobic bacillus degradation and oxygen release layer comprises aerobic bacillus, peroxide, third quartz sand and second activated carbon; heavy metal-organic matter combined pollution remediation can be achieved, and the purification capacity is high; the service strength can be elastically adjusted according to pollution degree changes, and the reactive barrier service life is prolonged; the combined pollution site biological permeable reactive barrier canbe used for preventing and treating high-risk sudden pollution sites.

The invention relates to a nano titanium rice planthopper control agent and a preparation method thereof. The nano titanium rice planthopper control agent comprises the following ingredients: 70 g of nano titanium microspheres with a shell-core structure, 100 g of silicone dioxide, 300 g of acetic acid, 300 g of honey, 80 g of monascus and 20 g of streptomyces microflavus. The action mechanism of the nano titanium rice planthopper control agent is as follows: burning rice planthopper larva and eggs to break the protective membranes and cell walls of the rice planthopper larva and eggs by using a photocatalytic reduction and oxidation function of nano titanium, and charging the alkaloid of the monascus and the streptomyces microflavus through the wounds to enter the cells of the larva or the eggs to break the cells. According to the nano titanium rice planthopper control agent and the preparation method thereof, the propagation of the rice planthopper is controlled by a physical method, harmfulness and toxic effects on human bodies are avoided, the resistance to drugs is not generated, and the nano titanium rice planthopper control agent is a safe, environment-friendly and non-toxic biological control agent.

The invention discloses a coal mine thick and hard sandstone roof water disaster and rock burst composite disaster treatment method which comprises the following steps: determining the height of a water flowing fractured zone, and then determining the position of a thick and hard sandstone aquifer within the height range of the water flowing fractured zone; determining a thick and hard sandstone aquifer mining influence range boundary R; determining the horizontal distance S1 between the lateral curtain of the boundary of the first mining working face and the lateral boundary of the goaf; the arrangement position of a first continuous lateral curtain is determined; a boundary lateral curtain and a first continuous lateral curtain are constructed through hydraulic fracturing grouting; lateral water interception and seepage prevention and normal stoping of the first mining working face are completed; lateral water interception and seepage prevention and normal stoping of the first continuous working face are completed; lateral water interception and seepage prevention are conducted on the second continuous working face; and so on, until the coal seam in the mining area or the panel is completely mined. According to the method, cooperative prevention and control of roof water disasters and rock burst disasters are achieved, the mine water inflow is greatly reduced finally, and the prevention and control effect of getting twofold results with half the effort can be achieved.

The invention discloses a prevention and control method for canker of pitaya, and belongs to the technical field of pitaya cultivation. The prevention and control method for the canker of the pitaya comprises the steps of S1, checking whether a pitaya tree has canker or not, and if the pitaya tree has canker, removing disease spots; S2, cleaning an orchard, cutting off diseased branches, then, spraying the whole pitaya orchard with an equal amount of Bordeaux mixture, wherein spraying is continuously conducted four times, and the spraying interval time is 20 days; S3, carrying out pesticide protection, wherein in the high-temperature and high-humidity season, pitaya and new branches on the pitaya tree are sprayed with pesticide for protection, the pesticide spraying frequency includes thatthe pesticide spraying interval is 7 days in a young fruit period, the pesticide spraying interval in other periods is 20-30 days, the sprayed pesticide comprises Baitai bactericide liquid, mixed liquid of prochloraz and mancozeb and mixed liquid of ethylicin and chlorothalonil, the three kinds of liquid are used in turn, and only one kind of liquid is sprayed each time. The prevention and control method for the canker of the pitaya has an excellent canker prevention and control effect.