306 results about "Spider mite" patented technology

The invention relates to a suspending agent sterilizing two-spotted spider mite Bacillus thuringiensis, belonging to the field of biological pesticides. The suspending agent is prepared by mixing fermentation liquid of the Bacillus thuringiensis BtR05 with a surfactant, an antiseptic agent, a suspending auxiliary agent and a thickening agent, wherein, the suspending auxiliary agent is ammonium sulphate. The invention also provides preparation methods and uses of the suspending agent, the suspending agent prepared by the BtR05 bacterium and the fermentation liquid of the bacterium is quite poisonous against two-spotted spider mite, American white moth, diamond-back moth, chive maggot, grub, maggot galerucella and Meloidogyne incognita, which is an efficient and broad-spectrum biological pesticide.

The present invention discloses a kind of nitromethylene derivatives as well as their preparation method and their uses. The insecticidal activity tests show that the nitromethylene derivatives of the present invention not only show high insecticidal activities against insects with piercing-sucking type or scratching type mouthparts, such as aphid, leafhopper, plant hopper, thrips and white fly and their resistant strains, but also show high insecticidal activities against Lissorhoptrus oryzophilus, carmine spider mite, and they can also be used to prevent sanitary pest, and white ant.

The invention provides a pesticide film forming agent used for controlling diseases and insect pests of forest trees, and its preparation method. The pesticide film forming agent comprises 0.5-10% of an active component, 0.5-10% of a film forming aid, 5-15% of a solvent, 5-15% of an aid and 50-80% of water; and the active component is one of or a mixture comprising several of tebuconazole, difenoconazole, propiconazole and emamectin benzoate. The drug film forming agent has a good control effect on the diseases and insect pests of the forest trees, has a low price, is convenient to use, and has a good control effect on the dry rot diseases of hickory trees, the canker of various trees, stalk longhorn beetles and bark beetles, leaf aphids, red spider mites and the like especially; the drug film forming agent reduces the active component volatilization and loss possibility and changes the release performance, so the residual period is prolonged, the drug dose and the dosing frequency are reduced; and the drug film forming agent reduces the toxicity of highly toxic pesticides, reduces the acute toxicity of pesticides, reduces the drift of the pesticides, and mitigates the pollution to the environment and the hazard to crops.

The invention relates to a method for artificial mass production of orius. The method is characterized in that spider mites, thrips and aphids are bred by phaseolus host plants and then the orius is bred by the bred preys. The method for artificial mass production of the orius has the advantages that not only are a prey breeding method and an orius breeding method provided, but also an orius collection method, an orius packaging method and a cultivating matrix treatment and reutilization method are provided; large-scale mass breeding of the orius can be achieved, the orius in various insect activity states is packaged in a product produced by the method, and the product conforms to an overseas orius product packaging mode.

The invention relates to a novel predatory mite production method. The novel predatory mite production method is characterized by including a spider mite breeding method, first-time breeding and continuous breeding methods for predatory mites, a predatory mite separating collection method, a predatory mite packaging method and a cultivating matrix treatment and reutilization method. The novel predatory mite production method has the advantages that the problem about mass breeding of the predatory mites is solved, the method is time saving, labor saving and simple and convenient to operate, breeding cost can be reduced by at least 10% once again, and a great quantity of predatory mite resources can be provided for biological prevention and control of pests.

The invention relates to a plant source acaricide made from the artemisia annua L. The invention has the artemisia annua L. extract as the main ingredient, together with additional synergist, emulsifying agent and dispersing agent, wherein the percentage by weight of the artemisia annua L. extract which consists of terpenoids, flavonoids and volatile oil compounds is 1 to 15 percent of the mixture. The acaricide is capable of being used to control phytophagous mites harming vegetables, oranges and apples and wheat mites hidden in food, in particular to control carmine spider mite, citrus red mites and copra mites; therefore, the invention has the advantages of high efficiency, low toxicity and no environmental pollution, and does not harm the quality of agricultural products. In addition, the invention also relates to the method of preparation of the plant source acaricide.

The invention discloses a WRKY20 protein and application of an encoding gene thereof in regulating stress resistance of plants. The WRKY20 protein disclosed by the invention is a protein as shown in A1), A2), A3) or A4), wherein A1) is a protein, the amino acid sequence of which is a sequence 4, A2) is a protein, the amino acid sequence of which is a sequence 13, A3) is a protein, the amino acid sequence of which is a sequence 14, and A4) is a protein, the amino acid sequence of which is a sequence 21. Experiments verify that reduction of the WRKY20 protein content plays a role of improving resisting cotton bollworm, two-spotted spider mite and aphids and increase of the WRKY20 protein content plays a role of preventing bemisia tabaci, fungal diseases and geminivirus for plants, thereby providing a gene resource for culturing new species of insect-resistant and/or anti-disease plants. The protein has relatively good potential application value.

The invention relates to a safe and high-yield cultivation method of exocarpium. The method includes the following steps of (1) variety selection, wherein the high-yield variety 'heavy foliage' with stretched crowns is selected first; (2) flower and fruit development adjusting and control; (3) ecological prevention and control over disease and insect damage, wherein the biological preventing and controlling method of using predatory mites for preventing and controlling spider mites is used as the main means and supplemented by a physical preventing and controlling method of using insecticidal lamps or a sex attractant; (4) high-yield crown pruning, wherein the crowns are pruned in the juvenile stage to cultivate the tree form, and heavy and light pruning are combined in the fruiting stage to control apical dominance and form inner bore branch space; (5) plant nutrition optimizing scheme, wherein organic fertilizer is applied additionally, and autumn growth fertilizer, winter fertilizer and spring fertilizer are applied again; (6) selenium-enriched production technology, wherein selenium fertilizer is sprayed to the leaf faces in the fruit developing process to increase the selenium content of fruits. A traditional technology is improved, the safe and high-yield cultivation method of exocarpium has the key advantages of being safe, high-yield, simple in step, convenient to operate, high in practicability, ecological, environmentally friendly and capable of effectively increasing the yield and improving quality.

The invention discloses a rapid and efficient propagation method for neoseiulus barkeri. The method comprises the following steps of 1 preparing artificial feed of forage mites, 2 culturing forage mites, 3 performing seed production and culture of neoseiulus barkeri, and 4 performing factorized breeding of neoseiulus barkeri. In this way, according to the rapid and efficient propagation method for neoseiulus barkeri, food mites, which are flour mites and glycyphagus of two different kinds are utilized as common neoseiulus barkeri forage mites to feed neoseiulus barkeri, billions of neoseiulus barkeri can be bred and used as natural enemies on various crops, fruits and vegetables for preventing and treating spider mites, thrips, tarsonemid and the like, the control effect is 90% or above, the pesticide application frequency is lowered by 60% or above annually, the crop yield and number can be increased, ecological environment can be protected, pesticide residues are reduced, and a large number of green foods such as pollution-free grains, vegetables and fruits are produced.

Disclosed is a pesticide composition taking abamectin, hexythiazox and flufenoxuron as active ingredients. The weight ratio among the abamectin, the hexythiazox and the flufenoxuron in the composition is 1-2:3-8:5-10. The pesticide composition has the advantages that the abamectin, the hexythiazox and the flufenoxuron are different in action mechanism and have obvious synergistic interaction by rational mixing, pesticide effect can be enhanced greatly, dosage per mu of the pesticide is lowered so as to reduce harmful effect on the environment and pesticide residue, duration of pesticide effect is prolonged, and the defect that the single agent is incapable of preventing and covering all growth cycles of spider mites is overcome.

The invention relates to a method for preparing a plant medicament preventing and treating two spotted spider mite insects, comprising the following components: 3000 grams of dried tea, 5000 grams of tobacco leaves, 5000 grams of bead tree leaves, 5000 grams of strychnos, 5000 grams of zanthoxylum, 5000 grams of eucalyptus leaves and 3000 grams of sulfur. The method comprises the following steps: taking the dried tea, the tobacco leaves, the bead tree leaves, the strychnos, the zanthoxylum and the eucalyptus leaves proportionally, cutting up, completely combining together after crushing the sulfur, putting into a big iron kettle, adding warm water of 150 kilograms, decocting with strong fire for 50 minutes after soaking for 30 minutes, adding cold water of 5 kilograms, then decocting with strong fire for 10 minutes and filtering out decoction so as to obtain the plant medicament.

The invention relates to the field of pesticides, in particular to an insect and disease prevention pesticide and a method for manufacturing the same. The method includes finely grinding nux vomica, soaking the ground nux vomica, slicing ginger and chopping china-tree leaves, chilies and artemisia scoparia respectively; sequentially adding the nux vomica, the ginger, the china-tree leaves, the chilies and the artemisia scoparia into boiling water, continuing stirring the boiling water, stewing the water with the materials until the yellow green water turns orange and stopping heating the water for about 2-3 hours to obtain mixed liquid when the water turns dark reddish brown; percolating and filtrating the mixed liquid to remove residues by a 120-mesh copper sieve; and filling the mixed liquid in cans and sealing the cans to obtain finished products. The water needs to be stewed for 10 minutes after each raw material is added, and then the follow-up other raw material can be added into the water. The insect and disease prevention pesticide and the method have the advantages that the insect and disease prevention pesticide is efficient, is broad in spectrum, low in toxicity and free of pollution and residual hazard, and effects of insect killing, sterilization, disease resistance and yield increasing are integrated; the insect and disease prevention pesticide realizes a remarkable effect for controlling red spider mites, cotton aphids, cabbage worms and the like; and the pesticide is manufactured from the natural plants, is good in pest control effect, does not harm human bodies, and adverse effects caused by chemical pesticides are modified.

Presently, most of acaricides in China and abroad are old products such as dicofol of diphenylcarbinol, propargite of sulfurous esters and isocarbophos of organic phosphorous. Most of the old products confront with high resistance due to being used for a long period and the old products are effective only by using in a large dosage; furthermore, the residence time of the old products is long and residue of dicofol is found in crops even one year after the dicofol is applied; isocarbophos is a highly toxic pesticide which is prohibited in the production of green foods, and in most regions where isocarbophos is used for too long time, strong resistance to isocarbophos is generated. Therefore, the old products can not meet the market demands and a novel acarcide is in urgent needed to solve the problems. Aiming at the functions of acarcide, researchers in our company develops a novel compound acarcide - fenbutatin oxide and pyridaben cream which is effective to red spider mites of orange trees and has the advantages of strong killing ability to prosopon acarid, nymphs and young acarid and acarid eggs, long effective period, no temperature influence, good environmental compatibility and safety to natural enemies.