Pyridaben microcapsule suspending agent and preparation method thereof

Abstract

The invention discloses a pyridaben microcapsule suspending agent and a preparation method thereof. The pyridaben microcapsule suspending agent comprises: by weight, 1 to 10% of pyridaben, 3 to 20% of one or more capsule-core solvents, 5 to 30% of a capsule-wall material, 2 to 10% of one or more emulsifiers, 1 to 5% of one or more dispersants, 0.1 to 5% of one or more anti-freezing agents, 0.1 to 10% of a pH conditioning agent and the balance deionized water. The invention also discloses a preparation method of the pyridaben microcapsule suspending agent. The pyridaben microcapsule suspending agent has good physical chemistry stability and strong emulsification dispersibility and is a high-efficiency, wide-spectrum, low-toxicity and nuisance-free acaricide. The pyridaben microcapsule suspending agent solves the problem that pesticide effects can be influenced by the combination of pyridaben and soil, reduces a use amount through slow release thereby prolonging a pesticide validity period and consolidating control effects, inhibits that pesticides are decomposed by air, sunlight and rainwater and are lost, effectively controls the pollution on underground water and controls the change of the ecological environment.

Description

technical field [0001] The invention belongs to the field of pesticides, and in particular relates to a pyridaben microcapsule suspension and a preparation method thereof. Background technique [0002] Pyridaben, the Chinese name is Sufenling; High-efficiency, broad-spectrum acaricide, non-systemic, has obvious control effects on phytophagous harmful mites such as spider mites, panonychia, clawed mites and lean mites, and is effective against eggs, nymphs, and adults , It is also effective for the mobile period of adult mites. It is suitable for citrus, apple, pear, mountain ballast, cotton, tobacco, vegetables (except eggplant) and ornamental plants. Pyridaben is stable at 50°C for 90 days, stable in organic solvents, and unstable to light. [0003] Traditional types of pesticides such as EC, microemulsion, powder and wettable powder account for more than 90% of the total preparations in my country. With the development of processed dosage forms, the disadvantages of tra...

AI Technical Summary

Problems solved by technology

Pyridaben is now mainly focused on the research of emulsifiable oil, microemulsion, powder and wettable powder, and these formulations are easily damaged by the atmosphere, sunlight and rain, and the drug effect is not fully exerted, and they also kill natural enemies when killing pests. Destroy the ecological environment, pollute the environment, and more seriously, endanger human health due to residues in crops

[0004] At present, the main dosage forms of pyridaben acaricide products used in the pesticide market are emulsifiable concentrate and wettable powder, but the high-efficiency, low-toxicity, and environment-friendly pyridaben microcapsule suspension has not been effectively used