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Sterilization composition containing isopyrazam and cyprodinil

A technology of pyraclostrobin and cyprodinil, which is applied in the direction of fungicides, biocides, biocides, etc., can solve problems such as metabolic interference, affecting photosynthesis, and yield loss, so as to reduce the dosage and medication The effect of low cost and low cost of use

Inactive Publication Date: 2016-07-20
GUANGDONG ZHONGXUN AGRI TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The mildew spots are scattered separately in the early stage, and then combined to form a large mildew spot, which can even cover the whole leaf, seriously affecting photosynthesis, disturbing normal metabolism, causing premature aging, and loss of yield

Method used

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  • Sterilization composition containing isopyrazam and cyprodinil
  • Sterilization composition containing isopyrazam and cyprodinil

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] Embodiment 1: Indoor activity determination test

[0020] (1) Indoor spore germination test of wheat powdery mildew:

[0021] The wheat powdery mildew bacteria were inoculated into a petri dish containing PDA medium and cultured at 25°C in the dark. A large number of spores were found to be produced by microscopic examination, and a spore suspension was prepared with sterile water for later use.

[0022] The original drug was made into 24% pyraclostrobin · epoxiconazole suspension for testing, and 4 groups of different treatments were set up, among which 0.3 μg / mL, 0.6 μg / mL, 1.2 μg / mL (active ingredient) and A clear water control. The test method was carried out with reference to Wu Wenjun's "Introduction to Experimental Techniques of Plant Chemical Protection" (1993). Refer to Table 1 for test results.

[0023] Table 1. Indoor spore germination test data of pyraclostrobin and cyprodinil.

[0024]

1

2

3

Clear water control

Active...

Embodiment 2

[0033] Example 2: 24% pyraclostrobin · cyprodinil suspension concentrate

[0034] The following substances are all in weight ratio: 6% pyraclostrobin, 18% cyprodinil, 2% Nongru 602#, 4% Nongru 500#, 3% lignosulfonate, 2% methanol, 0.5% Defoamer, add deionized water to make up to 100%. After the above raw materials are mixed, 24% pyraclostrobin-cyprodinil suspension concentrate is prepared through high-speed shear emulsification.

Embodiment 3

[0035] Example 3: 40% pyraclostrobin · cyprodinil water dispersible granules

[0036] The following substances are all in weight ratio: 10% pyraclostrobin, 30% cyprodinil, 6% sodium lignosulfonate, 2% naphthalenesulfonate, 1.8% disintegrant, and bentonite to make up to 100%. After the above raw materials are mixed, they are pulverized and granulated by a jet mill to obtain 40% pyraclostrobin·cyprodinil water-dispersible granules.

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Abstract

The invention relates to a sterilization composition containing isopyrazam and cyprodinil. Effective components of the sterilization composition comprise isopyrazam and cyprodinil; the weight ratio of isopyrazam to cyprodinil in the composition ranges from (1:10) to (10:1); and the sum of the weight of isopyrazam and cyprodinil in the composition is 2%-90%. The sterilization composition provided by the invention can be prepared into water dispersible granules and a suspension agent for atomization, and has a very good prevention and treatment effect on wheat powdery mildew. The sterilization composition has the advantages of environment friendliness in processing of preparations, strong selectivity and simplicity in utilization, and has extremely strong operability and actual application value.

Description

technical field [0001] The invention relates to a fungicidal composition containing pyraclostrobin and cyprodinil, which is used for preventing and treating wheat powdery mildew with pyraclostrobin and cyprodinil as active ingredients. Background technique [0002] Pyrafenapyramide, a succinate dehydrogenase inhibitor developed by Syngenta, is currently mainly used to control wheat powdery mildew. Belonging to the third generation of succinate dehydrogenase inhibitors, it has higher activity and duration. [0003] Cyprodinil is a methionine biosynthesis inhibitor, and has no cross-resistance with triazoles, imidazoles, morpholines, phenylpyrroles, etc. Cyprodinil has dual characteristics of quick-acting and long-lasting effect, and has good compatibility with crops. Appropriate processing formulations can further improve its penetration into leaves through the cuticle. Although its absorption capacity through seeds and roots is poor, when used as a seed treatment agent, it...

Claims

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Application Information

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IPC IPC(8): A01N43/56A01N43/54A01P3/00
CPCA01N43/54A01N43/56A01N2300/00
Inventor 朱刚陈佛祥王礼文吴泽伟张志伟颜石雷
Owner GUANGDONG ZHONGXUN AGRI TECH
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