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

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

Example Embodiment

[0020] Example 1: Indoor toxicity determination of thiafluzamide, metalaxyl, and clothianidin combination.

[0021] Perform statistical analysis with DPS statistical analysis software, and calculate the LC of each agent 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 Medicine LC 50 / Testing agent LC 50 )×100.

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

[0024] Co-toxicity coefficient (CTC)=[Measured Toxicity Index of Mixture (ATI) / Theoretical Toxicity Index (TTI) of Mixture]×100.

[0025] According to the combined effect classification standard: Co-toxicity coefficient (CTC) ≥ 120 shows synergistic effect; Co-toxicity coefficient (CTC) ≤ 80 shows ...

Example Embodiment

[0031] Example 2: Preparation method example.

[0032] The following substances are in weight ratio: 6% thiafluzamide, 2% metalaxyl, 22% clothianidin, 2% dodecylbenzene sulfonate, 0.2% PVA, 2% brilliant 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 according to the proportion, and then added to a sand mill for grinding, and after high shear mixing, a 30% thiafluzamide·methoxalin·clothianidin suspension seed coating agent is prepared.

Example Embodiment

[0033] Example 3: Example of efficacy test.

[0034] After the rice seeds are treated with medicament, they are dried in the sun. After drying, they are managed by conventional soaking and accelerating germination. The number of rice seedlings is investigated 20 days after sowing, and the seedling rate is calculated.

[0035] It can be seen from Table 3 that the 6% thiafluzamide·2% metalaxyl·22% clothianidin suspension seed coating agent has an effect of 96.25~98.04% on rice seed treatment against rice wilt, and on rice seedlings. The control effect is 93.41~96.72%, and the seedling rate of rice is 97.18~98.43%. The effect of using 6% thiafluzamide·2% metalaxyl·22% clothianidin suspension seed coating agent is significantly better than that of 6% thiafluzamide suspension seed coating agent, 2% metalaxyl suspension seed coating agent, 22% Clothianidin suspension seed coating agent, 22% clothianidin suspension seed coating agent, 6% thiafluzamide·22% clothianidin suspension seed coa...

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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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