A kind of seed treatment composition containing prochloraz and spirotetramat

A spirotetramat and seed treatment technology, applied in the directions of pesticides, biocides, animal repellants, etc., can solve problems such as yield reduction, achieve long lasting effect, significant synergistic effect, and overcome poor effect Effect

Active Publication Date: 2018-06-19
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

[0002] Rice bakanae disease and rice thrips are common and serious pests at the seedling stage of rice. Once rice bakanae disease and rice thrips are not controlled in time, it is easy to cause serious yield reduction

Method used

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  • A kind of seed treatment composition containing prochloraz and spirotetramat
  • A kind of seed treatment composition containing prochloraz and spirotetramat
  • A kind of seed treatment composition containing prochloraz and spirotetramat

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] Example 1: 2% prochloraz spirotetramat suspension seed coating

[0022] The content of each component (by weight): 0.5% prochloraz, 1.5% spirotetramat, 2% fatty acid polyethylene glycol, 4% magnesium aluminum silicate, 0.02% xanthan gum, 2% polyoxyethylene fatty acid , 4% ethylene glycol, 3% bentonite, 5% gum arabic, 2% methanol, 5% rose bengal, and deionized water to make up to 100%.

[0023] The above solid materials are crushed by air flow first, and then put into a sand mill for grinding with the rest of the materials for 5-6 hours to obtain 2% prochloraz-spirotetramat suspension seed coating agent.

Embodiment 2

[0024] Example 2: Synergistic Toxicity Assay

[0025] The test method refers to the Agricultural Industry Standard of the People's Republic of China, the Indoor Bioassay Test Guidelines for Pesticides, and the joint action determination of mixing.

[0026] Use DPS statistical analysis software for statistical analysis, by calculating the LC of each drug 50 or EC 50 To evaluate the activity of each medicament on the target life, and calculate the co-toxicity coefficient (CTC value) of the mixture according to Sun Yunpei's method.

[0027] Measured toxicity index (ATI) = (standard drug LC 50 / Test agent LC 50 )×100.

[0028] 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.

[0029] Co-toxicity coefficient (CTC) = [measured toxicity index (ATI) of mixture / theoretical toxicity index (TTI) of mixture] ×...

Embodiment 3

[0036] Embodiment 3: field efficacy test

[0037] Test agent: 2% prochloraz·spirotetramat suspension seed coating (prochloraz 0.5%, spirotetramat 1.5%).

[0038] Test crops: The rice variety is "Tianyouhuazhan".

[0039]Control objects: rice bakanae disease and rice thrips.

[0040] Experimental conditions: The experimental field is located in Shizhen Village, Chenjiang Town, Zhongkai District, Huizhou City, Guangdong Province. Rice is planted all year round in this village, where rice bakanae disease and rice thrips occur all the year round, and the soil fertility of the paddy field is moderate.

[0041] Test treatment: 2% prochloraz spirotetramat suspension seed coating (active ingredient to seed dosage ratio) 20, 40, 60, 80g / 100kg seed 4 agents and 0.5% prochloraz suspension seed coating were set in the test treatment, 1.5% spirotetramat floating seed coating and blank control, a total of 7 treatments.

[0042] Experimental Design: The seedling and drug efficacy tests we...

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PUM

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Abstract

The invention relates to a seed treatment composition containing prochloraz and spirotetramat. The seed treatment composition consists of effective components, such as prochloraz and spirotetramat, and the balance of pesticide auxiliaries. Prochloraz and spirotetramat are mixed to achieve an obvious synergistic effect, the use effect is enhanced, the prevention and treatment spectrum is expanded, and seed growth is protected.

Description

technical field [0001] The invention belongs to the technical field of chemical pesticide application, and in particular relates to a seed treatment composition comprising prochloraz and spirotetramat as active ingredients, which is used for preventing bakanae disease and rice thrips at the rice seedling stage. Background technique [0002] Rice bakanae disease and rice thrips are common and serious pests at the seedling stage of rice. Once the rice bakanae disease and rice thrips are not controlled in time, it is easy to cause serious yield reduction. Rice bakanae disease, also known as excessive growth disease, occurs in all rice areas in China. It is a disease caused by Fusarium moniliforme infection. The infected seeds and diseased rice straw are the primary infection sources of rice bakanae disease. After sowing, they often do not germinate or cannot be unearthed; the diseased seedlings are thinner and taller than healthy seedlings, the leaf sheaths are slender, the lea...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A01N47/38A01N47/06A01P3/00A01P7/04
CPCA01N47/06A01N47/38A01N2300/00
Inventor 陈佛祥张志伟王礼文朱刚吴泽伟
Owner 广州苗博士生物技术有限公司
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