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Suspended seed coating containing thifluzamide, metalaxyl and clothianidin

A suspension seed coating agent and metalaxyl technology, which is applied in the direction of insecticides, biocides, fungicides, etc., can solve the problems of seed pesticide damage events, etc., to reduce processing, reduce energy consumption, and expand the spectrum of control Effect

Active Publication Date: 2016-03-16
广州苗博士生物技术有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Seed chemical treatment technology is strict, and it needs to undergo strict test results before it can be applied. There are many reports of phytotoxicity incidents caused by seed chemical treatment

Method used

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  • Suspended seed coating containing thifluzamide, metalaxyl and clothianidin
  • Suspended seed coating containing thifluzamide, metalaxyl and clothianidin
  • Suspended seed coating containing thifluzamide, metalaxyl and clothianidin

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] Example 1: Indoor toxicity test of the combination of Thiofuramide, Metalaxyl and Clothianidin.

[0021] Use DPS statistical analysis software for statistical analysis, by calculating the LC of each drug 50 To evaluate the insecticidal activity of each agent, and calculate the co-toxicity coefficient (CTC value) of the mixture according to Sun Yunpei's method.

[0022] Measured toxicity index (ATI) = (standard drug LC 50 / Test agent LC 50 )×100.

[0023] Theoretical toxicity index (TTI) = Toxicity index of agent A × percentage of A in the mixture + toxicity index of B agent × percentage of B in the mixture + toxicity index of agent C × percentage of C in the mixture content.

[0024] Co-toxicity coefficient (CTC) = [measured toxicity index (ATI) of mixture / theoretical toxicity index (TTI) of mixture]×100.

[0025] According to the classification standard of joint effect: co-toxicity coefficient (CTC) ≥ 120 means synergistic effect; co-toxicity coefficient (CTC) ≤ 8...

Embodiment 2

[0031] Embodiment 2: Preparation method embodiment.

[0032] The following substances are in weight ratio: 6% Thiofuramide, 2% Metalaxyl, 22% Clothianidin, 2% Dodecylbenzenesulfonate, 0.2% PVA, 2% Bright Red, 3% Yellow Raw gum, 3%% propylene glycol, 0.2% potassium sorbate, 0.5% organic silicon, and the balance is deionized water. The above-mentioned materials are pre-pulverized in proportion, then added to a sand mill for grinding, and prepared after high-shear mixing to prepare a 30% thiafluxamide·methaxyl·clothianidin suspension seed coating agent.

Embodiment 3

[0033] Embodiment 3: Drug efficacy test embodiment.

[0034] After the rice seeds were treated with pesticides, they were dried in the absence of sunlight. After drying, they were managed by conventional soaking and accelerating germination. The number of rice seedlings was investigated 20 days after sowing, and the seedling rate was calculated.

[0035] As can be seen from Table 3, 6% Thiofuramide · 2% Mefenaxyl · 22% clothianidin suspension seed coating treatment of rice seeds has a control effect of 96.25 to 98.04% on rice blight, and 96.25% to 98.04% on rice blight. The control effect is 93.41-96.72%, and the rice seedling rate is 97.18-98.43%. 6% Thiofuramide · 2% Metalaxyl · 22% Clothianidin Suspension Seed Coating Effect is significantly better than 6% Thiofuramide Suspension Seed Coating, 2% Metalaxyl Suspension Seed Coating, 22% Clothianidin Suspension Seed Coating Clothianidin suspension seed coating, 22% clothianidin suspension seed coating, 6% thiafuramide 22% clo...

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Abstract

The invention relates to a suspended seed coating containing thifluzamide, metalaxyl and clothianidin. Thifluzamide, metalaxyl and clothianidin serve as effective components. Thifluzamide accounts for 1-20% of the total mass of the composition. Metalaxyl accounts for 1-20% of the total mass of the composition. Clothianidin accounts for 5-30% of the total mass of the composition. Pesticide auxiliaries serve as the rest of the components of the suspended seed coating. By means of the pesticide composition, damage caused by damping-off and echinocnemussquameus billberg before the seedling formation period of paddy can be effectively prevented and controlled, and the seedling formation rate of paddy seeds is increased.

Description

technical field [0001] The invention relates to the technical field of rice seed treatment, in particular to a suspension seed coating agent containing thiafluxamide, mefenaxyl and clothianidin, which is used for preventing and treating blight and rice beetle from the time of sowing to the emergence of rice seedlings. Harm, improve the rate of rice seedlings. Background technique [0002] In agricultural production, the quality of seeds directly affects the production of crops, and seeds are easily carried by seeds or infected by pathogenic bacteria in the soil and eaten by insects from sowing to seedling stage, causing seed rot, incomplete and other early-stage diseases and insect pests, which affect the quality of seeds. Germination, growth, reduce the rate of sowing seedlings. For example, rice seeds infected by Fusarium oxysporum cause vertebrobosis, rice beetle sucks seedlings to it and rice rhizomes, resulting in lack of seedlings and ridges in rice, seriously affecti...

Claims

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Application Information

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IPC IPC(8): A01N51/00A01P3/00A01P7/04A01N25/04A01N47/02A01N37/46
Inventor 陈佛祥冷忠国朱刚王礼文张志伟吴泽伟
Owner 广州苗博士生物技术有限公司
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