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Insecticidal suspending agent for rice seeds

A rice seed and suspending agent technology, applied in the agricultural field, can solve the problems of high price and difficulty in large-scale promotion

Inactive Publication Date: 2016-02-17
GAOYOU FENGTIAN AGROCHEM CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although the above three types of foreign seed treatment agents have been registered in my country, their prices are high and it is difficult to promote them on a large scale in China.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0013] Dissolve 2kg of the original drug of thiacloprid and 5kg of polyvinyl alcohol in 50kg of ethyl acetate; dissolve 2kg of calcium dodecylbenzenesulfonate in 50kg of distilled water; Slowly add the phase to the aqueous solution of the emulsifier under stirring. After the drop is complete, continue to stir and react for 30 minutes; raise the temperature to 80°C, react for 10 hours, and solidify into capsules; take 240kg of the reaction solution and add 1kg of SC-02 , 1kgSC-04, 0.5kg xanthan gum and continue stirring for 2 hours to make it evenly mixed. That is, the suspension concentrate is obtained, wherein the thiacloprid content is ≥ 1%, the average particle diameter is ≤ 9 μm, the pH value is ≈ 8, and the water content is ≤ 3%.

Embodiment 2

[0015] Dissolve 50kg of the original drug of thiacloprid and 40kg of polyvinyl alcohol in 200kg of ethyl acetate; dissolve 5kg of calcium dodecylbenzenesulfonate in 100kg of distilled water; Slowly add the phase to the aqueous solution of the emulsifier under stirring. After the drop is complete, continue to stir and react for 30 minutes; raise the temperature to 100°C, react for 20 hours, and solidify into capsules; take 240kg of the reaction solution and add 5kg of SC-02 , 2kgSC-04, 1kg xanthan gum continued to stir for 2 hours to make it evenly mixed. That is, a suspending agent is obtained. Among them, the content of thiacloprid is ≥1%, the average particle size is ≤9 μm, the pH value is ≈8, and the water content is ≤3%.

Embodiment 3

[0017] Put 100g of lichen in an airtight container, keep it for 8 to 12 hours at a temperature of 45°C and a vacuum of -0.05Mpa, take it out, crush it, and pass it through a 40-mesh sieve to obtain a powder; soak the above powder in n-hexane , placed in an ultrasonic container for ultrasonic treatment, and after 3 hours, take it out and cool it to room temperature to obtain the lichen extract.

[0018] Dissolve 2kg of the original drug of thiacloprid and 5kg of polyvinyl alcohol in 50kg of ethyl acetate; dissolve 2kg of calcium dodecylbenzenesulfonate in 50kg of distilled water; Slowly add the phase to the aqueous solution of the emulsifier under stirring. After the drop is complete, continue to stir and react for 30 minutes; raise the temperature to 80°C, react for 10 hours, and solidify into capsules; take 240kg of the reaction solution and add 1kg of SC-02 , 1kgSC-04, 0.5kg xanthan gum, 1kg lichen extract and continue stirring for 2 hours to make it evenly mixed. That is t...

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PUM

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Abstract

The invention provides an insecticidal suspending agent for rice seeds. The insecticidal suspending agent is prepared from, by mass, 2-50 parts of thiacloprid raw insecticides, 5-40 parts of high-molecular polymers, 50-200 parts of organic solvent, 2-5 parts of an emulsifying agent, 1-5 parts of a dispersing agent, 1-2 parts of a wetting agent, 0.5-1 part of a tackifier and 50-100 parts of water; sorbitan polyoxyethylene ether or alkylphenol ethoxylates or calcium dodecyl benzene sulfonate is adopted as the emulsifying agent; dodecyl sodium laurate or sodium dodecyl benzene sulfonate or lauryl sodium sulfate or sodium lignin sulfonate or calcium lignosulphonate or tea saponin is adopted as the dispersing agent; styrene sodium polycarboxylic acid or a naphthalenesulfonate formaldehyde polymer or sodium lignin sulfonate or calcium lignosulphonate is adopted as the wetting agent; xanthan gum is adopted as the tackifier; xylene or methylbenzene or ethyl acetate or petroleum ether or dichloromethane is adopted as the organic solvent.

Description

technical field [0001] The invention belongs to the technical field of agriculture, and in particular relates to a paddy seed insecticidal suspension. Background technique [0002] There are many rice insecticides on the market at present. Mainly include: Weifu (active ingredients: wilt, thiram) 40% suspension concentrate developed by U.S. Lilailu Chemical Industry Co., Ltd., which is mainly used for preventing and treating rice blight (160~200g / hm 2 ), Bakanae disease (120~160g / hm 2 ). Fipronil (active ingredient: fipronil) 5% seed dressing agent developed by French Rhone-Polanck Company is mainly used for rice planthopper, rice leaf roller, rice thrips, rice gall midge (80 ~160g / 100kg seeds, hybrid rice: 20~40g / kg, conventional rice). Haoniandong (active ingredient: carbosulfan, 35% seed treatment agent) developed by FMC Corporation of the United States is used to prevent and treat rice thrips (210~400g / 100kg seeds), rice gall midge (600~800g / 100kg Seeds). Although the...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01N47/40A01N65/00A01N65/03A01N63/04A01N25/04A01P7/04
Inventor 董长良
Owner GAOYOU FENGTIAN AGROCHEM CO LTD
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