30results about How to "Good effect on pest control" patented technology

The invention discloses emulsion for killing aphid and red spider and its preparation method. The emulsion uses mixed extractum as a main medicine, the mixed extractum comprises ailanthus altissima leaf water extraction extractum, radix sophorae flavescentis alcohol extraction extractum, eucommia ulmoides leaf water extraction extractum and neem bark alcohol extraction extractum with a weight ratio of 1:1:2:2, the emulsion also comprises, in relative to each gram of the main medicine, the following components: 40-50mL of a solvent, 5-15mL of an emulsifier, 0.05-0.15g of an assistant, 1-2mL of a preservative, 5-7.5mL of an antifreeze and 50-100mL of deionized water. The preparation method of the emulsion is as follows: (1) mixing the four extraction extractum according to the ratio, adding the solvent, heating for dissolving to obtain a medicine liquid; (2) adding the emulsifier and the assistant to the medicine liquid, using an ultrasonic emulsification device to obtain primary emulsion; (3) successively adding the preservative, the antifreeze and the deionized water to the primary emulsion, stirring, cooling to room temperature to obtain the emulsion. The emulsion is environmental friendly, stable in quality and good in insecticidal effect, and the preparation method has the advantages of simple operation and ow production cost.

The present invention provides a kind of sustained and controlled release pesticide granule, which comprises inner and outer two-layer structures in structure, which are respectively the slow release core layer of the core part and the quick release layer coated outside the slow release core layer; the composition includes the following Components: 0.01wt%-10wt% pesticide active ingredients, 40wt%-80wt% modified phosphogypsum, 5wt%-30wt% organic manure, 0.1wt%-20wt% biomass materials, 0.1wt%-2wt% additives, The balance is filler. In the invention, the components are mixed, humidified and then granulated to obtain a slow-release core layer and remaining powder, the product is rounded, and the remaining powder is coated on the surface of the slow-release core layer to form a slow-release and controlled-release pesticide granule. The slow and controlled-release pesticide granule prepared by the invention can realize the gradient release of the active ingredients of the pesticide according to the actual needs of crop disease and insect pest control. On the basis of meeting the requirements of crop pest control, there will be no problem of phytotoxicity to crops. At the same time, the active ingredients of pesticides last for a long time, which can reduce the number of pesticide applications, save pesticide and labor costs, and be environmentally friendly.

The invention provides a preparation method of a pesticide for killing aphids and red spiders, belonging to the technical field of application of natural plants. Effective components are extracted from the natural plants, i.e. ailanthus leaves, eucommia leaves and kuh-seng, to prepare the pesticide. The preparation method comprises the following steps of: firstly extracting the effective components from the ailanthus leaves, the eucommia leaves and sophora alopecuroide; separating and purifying a kuh-seng extract through HZ801 type resins to obtain matrine; and mixing extracting concentrated solutions of the ailanthus leaves and the eucommia leaves with the matrine to prepare the natural green pesticide which has the advantages of lasting deinsectization effect, low production cost and easy process operation.

The invention relates to a summer squash leaf-control high-yield unlimited vine hanging method. The summer squash leaf-control high-yield unlimited vine hanging method comprises the steps that when the number of leaves of each summer squash ranges from 5 to 7, spraying of 15% wettable powder 500-time dilution of a growth inhibitor MET is conducted from blades to cover tops, and after field planting is accomplished, soil is kept wetting immediately when the soil is dry; when the number of the leaves of each summer squash ranges from 7 to 8, vines of the summer squashes are hung, and all male flowers and female flowers existing before the eight leaves grow are removed; when the fruit setting period begins, flower dipping processing is conducted, one fruit is reserved for every two leaves, when the first fruit grows to meet the requirement that the length is 10cm, 10kg three-element fertilizer is used per mu, and is applied along with water, and fertilizer and water irrigation is conducted every 7-15 days; when the situation that the blade area becomes large, and the blades become thin appears, processing is conducted through the 15% wettable powder 500-time dilution of the MET, and when the fruiting vigorous period begins, top application of high-nitrogen and high-potash fertilizer is conducted. According to the summer squash leaf-control high-yield unlimited vine hanging method, the summer squashes are processed through the growth inhibitor, the increase of the blade area is inhibited, the blades of the summer squashes can become thin, and light transmission and the photosynthetic capacity are enhanced; the summer squashes are promoted to be robust in the earlier stage, the fruit setting period appears in advance, the fruit setting ratio is increased, after fruit setting is accomplished, growth and development of the fruits are quick, and the frequency of pest and disease damage is low.

The invention belongs to the technical field of natural plant application, and in particular relates to a pesticide for killing aphides and a preparation method thereof. The pesticide is prepared from pure natural plants. The pesticide is prepared from the following raw material herbs in part by weight: 8-12 parts of nutgrass flatsedge, 8-12 parts of puccinellia tenuiflora, 8-12 parts of folium artemisiae argyi and 8-12 parts of scandent hop. The preparation method of the pesticide for killing aphides comprises the following steps: extracting, separating and concentrating nutgrass flatsedge, puccinellia tenuiflora, folium artemisiae argyi and scandent hop and compatibly applying to obtain the environment-friendly natural green pesticide which has low aphis drug resistance, good effect of preventing and controlling pest, no environmental pollution and no residue.

The invention provides a pest-control composite preparation and a preparation process thereof, belongs to the technical field of preparing the crop insecticides, and in particular relates to a pest-control composite preparation formed by compounding a plurality of raw materials and a preparation process thereof. The pest-control composite preparation is characterized in that the raw materials of the preparation include bittern, tobacco juice, a traditional Chinese medicine preparation extract and ferrous sulfate; the tobacco juice is a soup which is obtained by decocting tobacco leaves with water proportionally, filtering and purifying; the traditional Chinese medicine preparation extract is a soup which is obtained by decocting traditional Chinese medicines having insecticidal efficacy with water proportionally, filtering and purifying. The pest-control composite preparation is especially suitable for irrigating vegetables such as Chinese chives and peanut and crops as an auxiliary, and has the positive effects of good pest control effect, no damage on ecological balance and improvement effect on soil properties.