Suspension Seed Coating Containing Thiofuramide and Metalaxyl and Thiamethoxam

A suspension seed coating agent and metalaxyl technology, which is applied in the direction of insecticide, seed coating/seed dressing, biocide, etc., can solve the problems of seed drug damage events, etc., to reduce processing and improve seedling growth Efficiency and reduction of material usage

Active Publication Date: 2018-05-18
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 go through strict test results before it can be applied. Seed chemical treatment has caused phytotoxicity incidents, and there are many reports at home and abroad

Method used

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  • Suspension Seed Coating Containing Thiofuramide and Metalaxyl and Thiamethoxam
  • Suspension Seed Coating Containing Thiofuramide and Metalaxyl and Thiamethoxam
  • Suspension Seed Coating Containing Thiofuramide and Metalaxyl and Thiamethoxam

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] Example 1: Indoor toxicity determination test.

[0021] Perform statistical analysis with DPS statistical analysis software, and calculate the LC of each agent 50 To evaluate the insecticidal activity of each drug, 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 content of A in the mixture + B drug toxicity index × percentage content 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 antagonistic effect; 80

Embodiment 2

[0032] Example 2: Preparation method example.

[0033] The following substances are in weight ratio: 6% thiafluzamide, 2% metalaxyl, 20% thiamethoxam, 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 materials are pre-pulverized according to the proportion, and then added to a sand mill for grinding, and after high shear mixing, the 28% thiafluzamide·methaxyl·thiamethoxam suspension seed coating agent is prepared.

Embodiment 3

[0034] Example 3: Field efficacy example.

[0035] After the rice seeds are treated with chemicals, they are dried in the sun. After drying, they are managed according to conventional soaking and accelerating germination. The number of rice seedlings is investigated 20 days after sowing, and the seedling rate is calculated.

[0036] It can be seen from Table 3 that the 6% thiafluzamide·2% metalaxyl·20% thiamethoxam suspension seed coating agent for rice seed treatment has a control effect of 95.67 to 97.48% against rice wilt, and it is effective for rice seedling. The control effect is 94.65-9.72%, and the seedling rate of rice is 96.68-98.05%. The use effect of 6% thiafluzamide·2% metalaxyl·20% thiamethoxam suspension seed coating agent is obviously better than that of 6% thiafluzamide suspension seed coating agent, 2% metalaxyl suspension seed coating agent, 20% Thiamethoxam suspension seed coating agent, 20% thiamethoxam suspension seed coating agent, 6% thiafluzamide·20% thiam...

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Abstract

The present invention relates to a suspension seed coating containing the active ingredients of thifluzamide, mefenoxam and thiamethoxam. The suspension seed coating contains 1-20 wt.% of thifluzamide, 1-20 wt.% of mefenoxam, 5-30 wt.% of thiamethoxam and the balance of pesticide auxiliary agents. The pesticide composition can effectively control drooping disease and chinocnemus squameus Billberg of rice before the seedling growth stage and improve the seedling rate of rice seeds.

Description

Technical field [0001] The present invention relates to the technical field of rice seed treatment, in particular to a suspension seed coating agent containing thiafluzamide, metalaxyl and thiamethoxam, which is used for the prevention and treatment of wilt disease and rice worms after sowing of rice to seedlings. Harm, increase the seedling rate of rice. Background technique [0002] In agricultural production, the quality of seeds directly affects the production of crops. From sowing to seedling stage, seeds are susceptible to being carried by the seeds or infected by pathogenic bacteria in the soil, and insect gnawing, causing seed rot, incompleteness and other early growth diseases and pests, which affect the seedling. Germination, growth, reduce the rate of sowing seedlings. For example, rice seeds are infected with Fusarium oxysporum to cause standing root disease, and the rice worms suck the seedlings to the rice rhizomes, resulting in lack of rice seedlings and ridges, w...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A01N51/00A01N47/02A01N37/46A01N25/04A01P3/00A01P7/04A01C1/06
CPCA01C1/06A01N25/04A01N37/46A01N47/02A01N51/00A01N2300/00
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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