Ultralow-volume liquid containing dinotefuran and difenoconazole

Abstract

The invention discloses ultralow-volume liquid containing dinotefuran and difenoconazole. The dinotefuran and the difenoconazole are taken as active components, and all the components are as follows in percentage by weight: 1-30 percent of dinotefuran, 1-10 percent of difenoconazole, 1-10 percent of a dispersing agent, 1-10 percent of an emulsifier, and the balance of a solvent. The ultralow-volume liquid disclosed by the invention is suitable for ultralow-volume spraying, low-volume spraying and electrostatic spraying, and has the advantages that the processing is convenient, the effect lasting period is long, the work efficiency is high, drug resistance is unlikely to be generated to a target, the environmental pollution is low, drugs and water are saved and the like; the ultralow-volume liquid is suitable for preventing and treating various insect damages and diseases of rice, corn, cotton, fruit trees and vegetables.

Description

technical field [0001] The invention belongs to the field of pesticides, and in particular relates to an ultra-low volume liquid containing dinotefuran and difenoconazole. technical background [0002] Dinotefuran has the characteristics of contact killing, stomach poisoning, strong systemic absorption by roots, high quick-acting effect, long-lasting effect of 3-4 weeks (theoretical lasting effect is 43 days), and wide insecticidal spectrum. It has excellent control effect and shows high insecticidal activity at a very low dosage. It is mainly used to control aphids, leafhoppers, planthoppers, thrips, whiteflies and their resistant strains on wheat, rice, cotton, vegetables, fruit trees, tobacco leaves and other crops. It is highly effective against pests of the order Pteroptera, Diptera, Beetles and Totaloptera, and it is also highly effective against hygienic pests such as cockroaches, termites, and houseflies. [0003] Difenoconazole is relatively safe among triazole fu...

AI Technical Summary

Problems solved by technology

[0005] 1. The work efficiency of the conventional spraying method is low, and the work efficiency per person is usually only 2-5 mu / day, which is difficult to meet the needs of large-scale planting

[0006] 2. Conventional spraying methods require a lot of water to control diseases and insect pests, usually up to 450-900L / ㎞2. In many areas far away from water sources and in arid and water-deficient areas, conventional spraying methods are difficult to implement or cannot achieve ideal control effects

[0007] 3. The medicines used in the conventional spraying method have a short duration of action. Since the dosage forms of the medicines used in the conventional spraying method are usually emulsifiable concentrates, water preparations, wettable powders, suspension concentrates, and water-emulsions, there are certain defects in use: due to the addition of a large amount of water to dilute , the concentration of the liquid medicine is very low, the surface tension is often high, and the adhesion, wettability, and permeability on the surface of the crop or target with a waxy layer are poor, and it is difficult to effectively enter the body of the crop and the target, resulting in a control effect Poor; in the natural environment of light, high temperature and dryness, the water in the liquid medicine is easy to evaporate, causing the medicine to only remain on the surface of the crops, and it is easy to photolyze and fall off from the crops after drying to fail; the droplets of conventional spraying The particle size is large, reaching 200-600 μm, which leads to the easy loss of the liquid sprayed on the surface of crops or targets; for a long time, the single and frequent use of pesticide varieties has made biological targets increasingly resistant to the pesticide itself, which is not conducive to harmful biological control