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Powder composition used for preventing termite

A composition and termite technology, applied in the field of pesticides, can solve the problems of limited amount of drug carried by termites, low drug concentration, limited application environment and the like

Inactive Publication Date: 2013-06-05
SHANGHAI INST OF BIOLOGICAL SCI CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The core of this technology is to use low-concentration chronic lethal drugs, such as: hexaflumuron, diflubenzuron, sulfluramid, etc., to make poisonous baits with low content (0.1-0.5%), and then lure them through a special bait station device. Termites feed and bring the drug back to the nest to achieve the effect of killing termites. This technology has achieved good results in the control tests in Guangdong, Jiangsu, Zhejiang and Shanghai in my country. However, due to the low concentration of drugs, individual termites carry The dose of medicine is limited, it must be taken and carried repeatedly, and it will take a long time (several months to more than half a year) to be effective
In addition, the cost of installation, inspection and replacement of the bait system is relatively high, and the application environment is limited, so it is difficult to promote it nationwide in the short term

Method used

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  • Powder composition used for preventing termite
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  • Powder composition used for preventing termite

Examples

Experimental program
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Effect test

preparation example Construction

[0025] Preparation of the composition

[0026] The anti-termite composition provided by the invention is prepared by uniformly mixing different concentrations of hexaflumuron and activated carbon powder containing fipronil. In one embodiment of the present invention, the activated carbon powder containing fipronil is prepared by the following steps: firstly weigh the original drug of fipronil and activated carbon powder according to the ratio of 3.0% and 97.0%, and then weigh the fipronil Pour the original drug of fenproil into the pumping bottle containing analytically pure acetone (the amount of acetone depends on the volume of the weighed activated carbon powder). After the fipronil is completely dissolved, add the weighed activated carbon powder. The acetone solution should be immersed in the activated carbon powder, and after being mixed evenly, the acetone is removed under reduced pressure until the activated carbon powder is dried, thereby making activated carbon powder...

Embodiment 1

[0040]With the powder composition of the present invention: containing 40% hexaflumuron, 0.2% fipronil and 59.8% medical talcum powder, the knockdown and virus transmission tests were carried out indoors on the termites of Taiwan. The test method refers to the relevant content in the National Ministry of Agriculture's standard (NY / T1153.2-2006) "Toxic transfer of pesticides to termites", and 7.5mg of the above powder composition is evenly applied to 50 house termite workers and 5 soldiers. On the ants (treatment of spraying), the termites carrying the drug are transferred to a diameter of 9 cm and observed in a petri dish with filter paper. When 20% of the worker ants are knocked down, get 8 worker ants that are sluggish or have just been knocked down. Move into another petri dish that has 50 worker ants and 5 soldier ants that have not been sprayed with pesticides (the first transmission of poison treatment), observe regularly, and record the termite half knockdown time (Kt50)...

Embodiment 2

[0045] In the present invention, the adsorption capacity of activated carbon and several common materials with adsorption function (Table 2) on fipronil were compared. Firstly, fipronil, activated carbon powder and other adsorbent materials are formulated into a composition containing 0.2% fipronil, and the preparation method of all the compositions is the same as the preparation of activated carbon powder containing fipronil in the preparation of the composition of the present invention. Then the above-mentioned composition powder of 7.5mg was uniformly applied to the body surface of 50 house termite worker ants respectively, and half of the knockdown time Kt50 and 90% knockdown time Kt90 of the house termite were observed (the specific method was the same as in Example 1).

[0046] From the perspective of knockdown speed, the adsorption and slow-release effect of activated carbon powder on fipronil is obviously better than other kinds of adsorption materials, while the adsorp...

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Abstract

The invention discloses powder composition used for preventing a termite. The powder composition used for preventing the termite comprises, by weigh, 20-60% of hexaflumuron and 0.2-0.6% of fipronil. The invention further discloses application of the powder composition used for preventing the termite and preparation and using methods of the powder composition used for preventing the termite.

Description

technical field [0001] The invention relates to the field of pesticides, in particular to a powder composition for controlling termites. Background technique [0002] It is a traditional technology in my country to control termites with high-concentration powder drugs. In this method, high-concentration drugs are directly sprayed on the surface of termites, and the characteristics of chronic knockdown or death and the excellent ability of drug transmission are used to make the termites with drugs return to the colony. In a short period of time, the drug will be delivered to kill more individuals, or even wipe out the entire group. As early as the 1940s and 1950s, my country promoted the technology of using high-concentration arsenous acid (20-46%) to prevent and control termites, and achieved good results. Until the mid-1960s, the termite control laboratory of Shanghai Institute of Entomology, Chinese Academy of Sciences used 50%-70% high-concentration mirex powder to repl...

Claims

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Application Information

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IPC IPC(8): A01N47/34A01N47/02A01N25/08A01N25/12A01P7/04
Inventor 王延年戴小杰吴捷黄昌本殷海生
Owner SHANGHAI INST OF BIOLOGICAL SCI CHINESE ACAD OF SCI
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