34results about How to "Efficient insecticidal effect" patented technology

The invention relates to compound biogas slurry insecticidal liquid and a preparation method. The insecticidal liquid is the compound biogas slurry insecticidal liquid which is prepared by a pesticide and biogas slurry in weight by percent: 0.02-0.2 percent of beta-cypermethrin and the biogas slurry, and 0.003-0.05 percent of imidacloprid and the biogas slurry. The preparation method comprises the following steps of: taking out the biogas slurry from a middle-layer discharging port of a biogas fermentation tank of which the biogas is normally fermented for over three months, wherein the total solid content of the biogas slurry is 10-12 percent; standing for 30 minutes; filtering to remove particle impurities to prepare the biogas slurry; reasonably mixing the biogas slurry and the beta-cypermethrin or the imidacloprid according to the weight percentage; fully stirring the mixture; and uniformly mixing. According to the compound biogas slurry insecticidal liquid and the preparation method, the biogas slurry generated in the anaerobic fermentation process of poultry excrement wastes is adopted, and the commonly-used insecticide is reasonably matched, so that common insect pests of a plurality of vegetable crops of kidney beans, eggplants, cabbages and the like can be effectively prevented; the insecticidal liquid is simple in preparation method, easy to operate and convenient to use, can reduce the using amount of the pesticides, and is suitable for being popularized; and the insecticidal liquid has the characteristics of efficiency, environment friendliness and low cost.

The invention relates to a charcoal-based organic medical fertilizer, and a preparation method and application thereof. The organic medical fertilizer comprises the following raw material components in percentage by weight: 0.1%-20% of thiamethoxam, 20%-80% of biomass charcoal, 10%-50% of urea and 1%-15% of an adhesive. The preparation method of the organic medical fertilizer comprises the following steps: uniformly mixing the biomass charcoal, the urea, the adhesive and the thiamethoxam to obtain a mixed material; adding water into the mixed material and uniformly carrying out stirring to obtain a water-containing material; and granulating the water-containing material, and carrying out drying to obtain the organic medical fertilizer. According to the organic medical fertilizer disclosedby the invention, thiamethoxam, biomass charcoal and urea are combined, and the three components can achieve an interaction synergistic effect, so that the insecticidal effect and fertilizer efficiency are obviously improved, and simultaneous reduction of farmland chemical fertilizers and pesticides can be achieved. Meanwhile, the lasting period of the pesticides and fertilizers can be prolonged,crop growth is effectively promoted, the crop yield is increased, and the farmland application amount and application frequency of fertilizers and pesticides can be reduced.

The invention discloses a green environment-friendly pesticide and a preparation method thereof and belongs to the technical field of pesticide. The green environment-friendly pesticide is prepared from the following raw materials in parts by weight: 6-12 parts of ephedra, 6-12 parts of tripterygium wilfordii, 8-16 parts of pyrethrum, 5-15 parts of common andrographis herb, 8-12 parts of saponin,3-9 parts of thyme, 4-10 parts of radix stemonae, 2-8 parts of nux vomica, 4-10 parts of hairyvein agrimony, 3-9 parts of common andrographis herb, 4-8 parts of lotus and 4-10 parts of elegant jessamine. The green environment-friendly pesticide disclosed by the invention is harmless to human and livestock, is free from side effect, has efficient insecticidal activity, is pollution-free to environment, is free from residue and has ultrahigh economic value and social value.

The invention discloses a natural botanical pesticide prepared from euphorbia pekinensis, gelsemium elegans, lightyellow sophora root, common threewingnut root, tobacco, sessile stemona root, fistular onion juice, arisaema bockii engler, monkshood, cortex meliae and semen momordicae. According to the natural botanical pesticide, the monarch, minister, assistant and guide theory in traditional Chinese medicine is adopted, natural Chinese herbal medicines are adopted for reasonable compatibility, and all the components have a synergistic effect, so that the natural botanical pesticide has the effects of powerfully destroying digestive systems and metabolic functions of pests, destroying vagus nerves of the pests and inhibiting respiratory systems, and can kill all soft mouth-eating pests and piercing-sucking pests; and the natural botanical pesticide is high in pesticide efficacy, stable in pesticide effect, long in pesticide effect time (not less than 14 days), easy to degrade, free of environmental pollution, free of peculiar smell, free of residues, free of pollution, green, safe and environmentally friendly.

The invention discloses a plant-sourced pesticide micron emulsion used for preventing aphid and locust, and a preparation method thereof. According to the preparation method, raw material components tripterygium wilfordii root and stem, Euphorbia fischeriana root, and sophora alopecuroides seed are processed so as to obtain tripterygium wilfordii root and stem extract product, Euphorbia fischeriana root extract product, and sophora alopecuroides seed extract product; the tripterygium wilfordii root and stem extract product, Euphorbia fischeriana root extract product, and sophora alopecuroidesseed extract product are mixed at a ratio of 0.1-1% : 0.1-1% :0.1-1%, an appropriate amount of water and a small amount of ethanol are added for dissolving, tween 20 and span 20 are added, an obtainedmixture is stirred through magnetic stirring to be uniform so as to obtain an oil phase; the oil phase is heated to 50 DEG C; with stirring, n-butanol co-emulsifier is added slowly, and stirring is carried out continuously; distilled water, antifreezing agent 1, 2-propylene glycol, and antifoaming agent dimethicone are added for uniform stirring, and an obtained mixed material is added into the oil phase slowly with stirring so as to obtain the plant-sourced pesticide micron emulsion used for preventing aphid and locust. It is shown by experiment results that: 1% of the plant-sourced pesticide micron emulsion possesses contact toxicity on plant insects aphid and locust even at a dilution ratio of 100 times, and the plant-sourced pesticide micron emulsion is safe for crops.

The invention discloses an environment-friendly pesticide and a preparation method thereof, belonging to the technical field of pesticides. The environment-friendly pesticide is prepared from the following raw materials in parts by weight: 5-15 parts of caulis trachelospermi, 6-16 parts of common threewingnut root, 5-15 parts of herba ephedra, 6-16 parts of common threewingnut root, 5-15 parts offructus gleditsiae, 6-16 parts of thymus mongolicus, 4-12 parts of caulis trachelospermi, 5-15 parts of semen strychni, 6-16 parts of hairyvein agrimony, 5-15 parts of herba andrographis, 6-18 parts of rhizoma nardostachyos and 4-12 parts of caulis sinomenii. The environment-friendly pesticide is harmless to people and livestock, has no side effect, pollution and residue and has efficient insecticidal actions and very high economic and social values.

The invention belongs to the technical field of pesticides, and particularly relates to a chlorantraniliprole and chlorfenapyr composition and a preparation method thereof. The chlorantraniliprole and chlorfenapyr composition is characterized in that the active ingredients of the chlorantraniliprole and chlorfenapyr composition comprise chlorantraniliprole and chlorfenapyr, and the weight ratio of chlorantraniliprole to chlorfenapyr is (1: 50)-(50: 1). The chlorantraniliprole and chlorfenapyr composition prepared by the preparation method disclosed by the invention has an efficient insecticidal effect in a use process, and can ensure that the toxicity to mammals is small, so that the reasons-free injury to other mammals is avoided; the chlorantraniliprole and chlorfenapyr composition prepared by the invention has extremely small influence on the environment in the use process, meets the green and environment-friendly requirements, is suitable for being used in a large range, and has extremely high use value.

The synthesis process of new benzoyl urea compound includes the fluorination of chlorothalonil, the separate amination of chlorothalonil and the fluorinated product, the hydrolysis and decarboxylation of the aminated product in sulfuric acid solution to obtain compound V; the hydrolysis of compound VI in sulfuric acid solution to obtain compound VII, the reaction between compound VII and oxalyl chloride to obtain compound II; and the reaction of compound V and compound II. The benzoyl urea compound of the present invention has no halogen element in the place 4 of the phenyl group but very activity, and this has important theoretical significance. Practically, the present invention opens one new way of preparing benzoyl urea compound as insect growth regulator and the production line is short, mild in reaction condition, high in yield, low in cost and suitable for industrial production.