阅读说明：本技术 一种含联苯肼酯的杀螨组合物 (Acaricidal composition containing bifenazate ) 是由 马惠 信彩云 林香青 赵庆雷 陈博聪 于 2019-11-27 设计创作，主要内容包括：本发明提供了一种含联苯肼酯的杀螨组合物,还含有单宁；所述单宁和联苯肼酯的质量比为10:1-1:10；所述单宁和联苯肼酯的总含量为0.1-99.9 wt%,其余为辅料。本发明的含联苯肼酯的杀螨组合物,对各种作物植食性害螨效果好、田间防效高、持效期长,化学药剂用量少；而且单宁价格低,与联苯肼酯混用后能够增效,可以降低有效成分用量。单宁还能够减少悬浮剂中防冻剂和防腐剂的用量、降低制剂成本。本发明的含联苯肼酯的杀螨组合物对植物与人畜安全,农产品农药残留量低,符合农药减量增效的要求。(The invention provides a miticidal composition containing bifenazate, which also contains tannin; the mass ratio of the tannin to the bifenazate is 10:1-1: 10; the total content of the tannin and the bifenazate is 0.1 to 99.9 weight percent, and the balance is auxiliary materials. The acaricidal composition containing the bifenazate has good effect on various crop phytophagous mites, high field control effect, long lasting period and small dosage of chemical agents; and the tannin has low price, can be synergized after being mixed with the bifenazate, and can reduce the using amount of effective components. The tannin can also reduce the dosage of an antifreezing agent and a preservative in the suspending agent and reduce the preparation cost. The bifenazate-containing acaricidal composition is safe to plants, people and livestock, has low pesticide residue on agricultural products, and meets the requirement of pesticide reduction and synergism.)

1. An application of tannin as bifenazate synergist.

2. The use of claim, wherein the tannin and bifenazate are applied in a tank mix or a combination.

3. The use of claim, wherein the tannin has a synergistic concentration of greater than 0.01 wt.% to bifenazate.

4. A miticidal composition comprising bifenazate, further comprising tannin; the mass ratio of the tannin to the bifenazate is 10:1-1: 10; the total content of the tannin and the bifenazate is 0.1 to 99.9 weight percent, and the balance is auxiliary materials.

5. An acaricidal composition according to claim 4, characterized in that the ratio by mass of tannin and bifenazate is between 5:1 and 1: 5; the total content of the two is 30-85 wt%.

Technical Field

The invention relates to a bifenazate-containing acaricidal composition, and belongs to the field of plant chemical protection.

Background

Bifenazate (bifenazate), the chemical name of which is 3- (4-methoxy biphenyl-3-yl) hydrazino isopropyl formate, belongs to the bifenazate acaricide, and bifenazate is a novel acaricide for selective foliar spray. The mechanism of action is a unique action on aminobutyric acid (GABA) receptors of central nervous system of mites. The insecticidal composition is effective to various living stages of mites, has ovicidal activity and knockdown activity (48-72h) to adult mites, has a lasting period of 14 days, and is safe to crops within a recommended dosage range. Low risk to parasitic wasp, predatory mite and green lacewing. However, bifenazate has the risks of high use cost, gradually increased resistance and short duration in the use process. And the reasonable mixing with other components plays an important role in prolonging the service life of the bifenazate and reducing pesticide residue.

Tannin is also called tannin, tannic acid and tannic acid, is a large class of polyphenol compounds, is a secondary metabolite formed in the long-term ecological environment adaptation process of plants for resisting the attack of phytophagous animals, microorganisms and the like, and generally exists in plants. Hydroxyl on the molecular structure in the tannin is combined with carboxyl in protein molecules to form a stable cross chain, so that the activity of digestive enzyme of phytophagous animals can be inhibited, and the food utilization is influenced; and simultaneously, the plant growth inhibitor can be complexed with starch to influence the decomposition of the starch, thereby preventing insects from digesting protein in plant leaves and absorbing nutrient components, thereby preventing the growth and development of the plants and reducing the fertility of the plants.

In the existing research, the influence of plant secondary organisms on pests and mites is mainly concentrated on the influence on the enzyme activity and feeding taxis of protective enzyme and detoxifying enzyme, the synergy of tannin on chemical pesticides is not seen, but the direct influence on the pesticide effect cannot be directly judged due to the influence on the enzyme activity. The research provides the application of the tannin in pest mite control and biphenyl hydrazine ester reduction and synergism through the toxicity of the tannin and the biphenyl hydrazine ester to pest mites after the tannin and the biphenyl hydrazine ester are mixed.

Disclosure of Invention

The invention provides an acaricidal composition containing bifenazate, aiming at the problems of high use cost, high resistance risk and short duration of bifenazate.

In order to achieve the purpose, the invention adopts the following technical scheme.

An application of tannin as bifenazate synergist. The tannin and the bifenazate can be mixed in a tank or compounded. The use concentration of the tannin for the synergism of the bifenazate is more than 0.01 wt%.

A miticidal composition comprises bifenazate, tannin; the mass ratio of the tannin to the bifenazate is 10:1-1: 10; the total content of the tannin and the bifenazate is 0.1 to 99.9 weight percent, and the balance is auxiliary materials.

Preferably, the mass ratio of the tannin to the bifenazate is 5:1-1: 5; the total content of the two is 30-85 wt%.

The dosage form of the acaricidal composition is selected from one of Wettable Powder (WP), Water Dispersible Granules (WDG), Microemulsion (ME), emulsion in water (EW), microcapsule suspending agent (CS) or suspending agent (SC).

The invention has the following beneficial advantages: the acaricidal composition containing the bifenazate has good effect on various crop phytophagous mites, high field control effect, long lasting period and small dosage of chemical agents; and the tannin has low price, can be synergized after being mixed with the bifenazate, and can reduce the using amount of effective components. The tannin can also reduce the dosage of an antifreezing agent and a preservative in the suspending agent and reduce the preparation cost. The bifenazate-containing acaricidal composition is safe to plants, people and livestock, has low pesticide residue on agricultural products, and meets the requirement of pesticide reduction and synergism.

Drawings

FIG. 1 is a liquid chromatogram of a bifenazate standard;

FIG. 2 shows the residual amount of bifenazate in the leaves for different treatment times with different agents.

Detailed Description

The present invention will be further illustrated with reference to the following examples, but the present invention is not limited to the following examples.