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Fosthiazate and azoxystrobin pesticide composition

A pesticide composition, the technology of azoxystrobin, applied in the field of pesticide composition, can solve the problems of nematode drug resistance, high toxicity, environmental pollution, etc., achieve obvious synergistic effect, reduce the amount of pesticide usage, and reduce the cost

Active Publication Date: 2013-05-29
GUANGDONG ZHONGXUN AGRI TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, the chemical agents used to prevent and control nematodes include highly toxic pesticides such as fenamiphos, carbofuran, terbufos, and thiamephos. Due to long-term single use of these pesticides, nematodes are relatively resistant to them, and their toxicity is high, which is harmful to the environment. serious pollution

Method used

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  • Fosthiazate and azoxystrobin pesticide composition
  • Fosthiazate and azoxystrobin pesticide composition
  • Fosthiazate and azoxystrobin pesticide composition

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0016] Example 1: Determination of the combined effect of azoxystrobin and thiazolyl mixture on cucumber root-knot nematode.

[0017] Test method: Take the cucumber root system that produces a large number of root knots, rinse it gently with tap water, gently pick out the milky white oocysts on the diseased root with a dissecting needle, put it into a small petri dish with a diameter of 6 cm, add a small amount of sterile water, and dry it at 25 Incubate in an incubator at ℃ for 3-4 days, collect the 2nd instar larvae, and add sterile water to make a suspension with a certain concentration (about 500 / ml) for later use.

[0018] Five concentration gradient treatments were set, and sterile water was used as the blank control. Take a 96-grain cell culture plate, add 150nl of different concentrations of prepared medicines to each grandchild, then add an equal volume of nematode suspension, and culture at 25°C with moisture, and check the survival of the 2nd instar of A. The numbe...

Embodiment 2

[0024] Embodiment two: the prescription and the processing method of 11% azoxystrobin · thiazolyl granules:

[0025] Azoxystrobin 1%,

[0026] Thiazophosphine 10%,

[0027] Silica 5%,

[0028] Attapulgite 25%,

[0029] Polyvinyl alcohol 2%,

[0030] Kaolin balance.

[0031] The above formula is crushed according to the proportion → put into the mixer and stirred evenly → add water to the granulation tray to granulate → dry in the drying oven → cool → sieve → pack to prepare 11% azoxystrobin · thiazolyl granules.

Embodiment 3

[0032] Embodiment three: adopt the 11% azoxystrobin · thiazolyl granule of above-mentioned embodiment two to carry out field test, prevent and cure cucumber root-knot nematode and Fusarium wilt, the experimental site is Nanning City, Guangxi, and the test time is June 2012, spraying The method is to apply before transplanting. 1500 g / mu of 5% thiazostrobin granules and 2000 g / mu of 0.5% azoxystrobin granules were used as control agents, and 1500 g / mu of the above-mentioned 11% thiazostrobin granules were used for the test treatment. The test results are shown in Table 2 and Table 3.

[0033] Table 2. Test results on cucumber root-knot nematode.

[0034]

[0035] Table 3. Test results on cucumber wilt.

[0036]

[0037] The test results show that the pesticide composition of the present invention has obvious synergistic effect and can effectively prevent and treat root-knot nematodes and Fusarium wilt of crops, and the control of main soil-borne diseases and insect pest...

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Abstract

The invention discloses a fosthiazate and azoxystrobin pesticide composition. The weight part ratio of fosthiazate to azoxystrobin is in a range from 10: 1 to 1: 10; and the weight percentage of the weight sum of the fosthiazate and the azoxystrobin in the pesticide composition is 5-50%. The two effective components of the pesticide composition disclosed by the invention are mixed to have very good prevention and treatment effects on crop root-knot nematodes and wilts so that the use dosage of a pesticide is reduced, manpower and material resources are saved and the pollution of the pesticide to an environment is reduced; and the fosthiazate and azoxystrobin pesticide composition is applicable to preventing and treating crop nematodes of vegetables, cotton, fruit trees, soybeans, peanuts, flowers and plants and the like.

Description

technical field [0001] The pesticide composition involved in the present invention uses azoxystrobin and thiazophos as active ingredients, and is suitable for preventing and controlling crop nematodes and fusarium wilt. Background technique [0002] Plant parasitic nematodes in plants and soil are one of the main pathogens of plant invasive diseases. Its damage not only absorbs plant nutrients to cause yield reduction and quality decline, but also causes root cells to grow excessively and become galls, losing nutrients and absorbing nutrients. The ability of water to cause plant decay. It can also carry pathogens and cause other diseases. [0003] At present, the chemical agents used to prevent and control nematodes include highly toxic pesticides such as fenamiphos, carbofuran, terbufos, and thiamephos. Due to long-term single use of these pesticides, nematodes are relatively resistant to them, and their toxicity is high, which is harmful to the environment. serious pollu...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01N57/32A01N43/54A01P5/00A01P3/00
Inventor 朱刚刘鹏陈佛祥冷忠国张志伟王礼文
Owner GUANGDONG ZHONGXUN AGRI TECH