Pymetrozine-containing suspension agent composition

Abstract

The invention discloses a pymetrozine-containing suspension agent composition which comprises pymetrozine and an effective ingredient B, wherein the effective ingredient B is any one of isoprocarb, nitenpyram, imidacloprid, avermectin, buprofezin, thiacloprid and acetamiprid. The composition consists of pesticide active ingredient, a wetting agent, a dispersing agent, an antifreeze agent, a defoaming agent, a thickening agent and water, wherein the dispersing agent is one or more of modified calcium lignosulphonate, alkyl naphthalene sulfonic acid condensate Morwet D-425, polycarboxylate Tersperse 2500, sodium poly (naphthaleneformaldehyde) sulfonate and sodium methylene bis-naphthalene sulfonate. The composition has the advantages of thinner particle size, higher suspension rate, better dispersibility, more stable heat storage property, better effect and the like.

Description

technical field [0001] The invention relates to a pesticide preparation, in particular to a suspension composition containing pymetrozine as an active ingredient Background technique [0002] For a long time, farmers have used single pesticides or unscientific use of pesticides, resulting in increased resistance of pests and increased dosage of pesticides year by year, causing more and more harm to the environment. [0003] Pymetrozine is a new type of high-efficiency insecticide. It is a pyridine heterocyclic insecticide with high efficiency, low toxicity and environmental friendliness. The insecticide has a unique mode of action, no knock-down activity, and no direct toxicity to insects, but once the insects come into contact with the agent, they stop feeding immediately. Even if resistance to organophosphorus and carbamate insecticides has developed, pymetrozine still has a unique control effect on piercing-sucking mouthparts pests, especially aphids, whiteflies, and bla...

AI Technical Summary

Problems solved by technology

However, the biggest disadvantage of this agent is its poor quick-acting property, and it takes a long time after the application of the agent before the pests die.

[0004] In recent years, water-based formulations have become the main direction for the development of pesticide formulations. Suspension concentrates are one of the most important formulations. Suspension concentrates are a thermodynamically unstable system. As time goes by, state changes will inevitably occur eventually. Quality problems such as layering and bottoming, while the size of the particle size of the suspending agent directly affects the quality of the product. If the particle size is large, quality problems such as layering, bottoming, and low suspension rate are likely to occur, thus affecting the efficacy of the drug

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