Sterilization composition containing isopyrazam and meptyldinocap

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

Inactive Publication Date: 2016-06-01
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 meptyldinocap
  • Sterilization composition containing isopyrazam and meptyldinocap
  • Sterilization composition containing isopyrazam and meptyldinocap

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] Embodiment 1: Indoor activity determination test

[0020] According to the Gowing method to evaluate the combination of drugs, the formula is as follows:

[0021] E. 0 ﹦X﹢Y–XY / 100

[0022] In the formula, X is the control rate of pyraclostrobin to target pests when it is used alone at a certain dose; Y is the inhibition rate of metystrobin to target pathogens when it is used alone at a certain dose; E 0 is the theoretical value of the target inhibition rate when pyraclostrobin and memethystrobin are mixed; E is the measured value of the target inhibition rate when pyraclostrobin and memethystrobin are mixed.

[0023] Evaluation criteria: When E–E 0 When >10%, it means synergistic effect; when -10%≤E–E 0 When ≤10%, it shows an additive effect; when E–E 0 <-10%, showed antagonism.

[0024] Table 1. Evaluation of combined effects of pyraclostrobin and metrastrobin on wheat powdery mildew by indoor detection

[0025]

[0026]

[0027] Indoor experiments showed ...

Embodiment 2

[0028] Example 2: 24% pyraclostrobin · medistrobin suspension concentrate

[0029]

[0030] After mixing the above raw materials, high-speed shearing emulsification is carried out to prepare 24% pyraclostrobin-mediclostrobin suspension concentrate.

Embodiment 3

[0031] Embodiment 3: field efficacy test

[0032] Adopt 24% pyraclostrobin mediclostrobin suspending agent (embodiment 2) to carry out field test, prevent and treat wheat powdery mildew, test site is Xingtai City, Hebei, and test time is May, 2015, selects the field piece of initial morbidity , by means of mechanical spraying. 500-fold solution of 20% pyraclostrobin soluble granule and 1500-fold solution of 24% mediclostrobin suspension concentrate (Beijing Yanhua Yongle Pesticide Company) were used as control agents. The test treatment was carried out with 500 times liquid of the above-mentioned 24% pyraclostrobin-memethystrobin suspension concentrate. The control effects of 20% pyraclostrobin soluble granule, 24% mediclostrobin suspending agent, and 24% pyraclostrobin·mediclostrobin suspending agent after 7 days were: 77.3%, 70.3%, 89.5% %. The bactericidal composition of the present invention is obviously better than the single dose of the control.

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PUM

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Abstract

The invention relates to a sterilization composition containing isopyrazam and meptyldinocap. Effective components of the sterilization composition comprise isopyrazam and meptyldinocap; the weight ratio of isopyrazam to meptyldinocap in the composition is (1:15) to (15:1); and the sum of isopyrazam and meptyldinocap accounts for 1%-60% of the composition in weight percent. The sterilization composition provided by the invention can be prepared into a suspending agent and has very good prevention and treatment effects on wheat powdery mildew. The preparation provided by the invention has the advantages of environment-friendly processing, high 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, the main components of which include pyraclostrobin and medistrobin, and the group of compounds is mainly used for preventing and treating powdery mildew of cereal crops. Background technique [0002] Pyrafenapyramide, a succinate dehydrogenase inhibitor, is currently mainly used to prevent and control fungal diseases such as wheat powdery mildew and vegetable gray mold; it belongs to the third generation of succinate dehydrogenase inhibitors and has higher activity and Validity period. [0003] Metrastrobin has triple functions of protection, treatment and eradication. It can act on all stages of the life cycle of pathogenic bacteria. By inhibiting spore germination and fungal respiration, it can cause cell metabolism disorder and cause pathogenic bacterial cell death. [0004] Wheat powdery mildew can be diseased from seedling to heading, mainly damages wheat leaves, but also damages stems and ears...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01N43/56A01N37/06A01P3/00
CPCA01N37/06A01N43/56A01N2300/00
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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