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Abamectin active pharmaceutical ingredient and pesticide using same as active component

A technology of abamectin and active ingredients, applied in the field of abamectin raw materials and pesticides using them as active ingredients, can solve the problems of insignificant activity, not being used, inconvenient extraction, purification and the like, and achieve good The effect of the control effect

Active Publication Date: 2013-03-20
HEBEI XINGBAI AGRI SCI & TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But at present, only the components of Abamectin B1 (Avermectin B1a and Abamectin B1b) have been purified and realized industrial application, and other components may not be suitable for industrial application because of inconvenient extraction and purification; or Its activity is not significant, and it is not used

Method used

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  • Abamectin active pharmaceutical ingredient and pesticide using same as active component
  • Abamectin active pharmaceutical ingredient and pesticide using same as active component
  • Abamectin active pharmaceutical ingredient and pesticide using same as active component

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0039] Embodiment 1 The preparation of Abamectin crude drug of the present invention

[0040]a, using the abamectin fermented liquid as the starting material, pumping it into the plate frame for filtration. In order to increase the filtration rate, an appropriate amount of filter aid can be added to the abamectin fermentation broth, and the fermentation broth can also be heated to 80°C to 90°C. Mycelium is obtained after filtering, and then dried to obtain dry mycelium. Place the dried mycelium in a reaction tank, add ethanol to soak and extract (referred to as extraction). The add-on of ethanol is advisable with being able to immerse mycelium completely, and the concentration of ethanol can be selected according to the range shown with conventional leaching method, and the present invention is preferably with 75-95%. After the mycelium was soaked in ethanol for 2-5 hours, the extract was collected for subsequent use; the filter residue could be repeatedly extracted with eth...

Embodiment 2

[0053] Embodiment 2: 1.8% abamectin B2a emulsifiable concentrate

[0054] Weigh 6kg of Abamectin B2a (purity of raw material is 30%), 79kg of refined mineral oil, 15kg of agricultural milk BY-11015kg;

[0055] Add a small amount of refined mineral oil to Abamectin B2a, grind well, then add Nongru BY-110 (emulsifier) ​​and the remaining refined mineral oil in sequence, and stir well.

Embodiment 3

[0056] Embodiment 3: 5% Abamectin B2a EC

[0057] Weigh 6.25kg of Abamectin B2a (the purity of the raw material is 80%), 90.75kg of toluene, and 22013kg of agricultural milk;

[0058] Add a small amount of toluene to Abamectin B2a, grind well, then add Nongru 2201 (emulsifier) ​​and the remaining toluene in sequence, and stir well.

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PUM

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Abstract

The invention discloses an abamectin active pharmaceutical ingredient of which the abamectin B2a purity is greater than or equal to 30%. The invention also discloses an abamectin pesticide which uses the abamectin B2a as an active component and also contains at least one agriculturally acceptable pharmaceutical carrier. The pesticide disclosed by the invention can be used for preventing and treating body surface nematodes on livestock (such as pigs, dogs, cattle and the like), and plant root-knot nematodes, and especially has favorable effects on preventing and treating maize Christmas beetles. The pesticide has incomparable good effects with abamectin B1.

Description

technical field [0001] The invention relates to a pesticide raw material medicine and an insecticide in the pesticide, in particular to an avermectin raw material and an insecticide using it as an active ingredient. Background technique [0002] Abamectin is a high-efficiency, broad-spectrum antibiotic insecticide, which is used for poultry, livestock internal and external parasites and crop pests, such as parasitic red worms and Diptera, Coleoptera, Lepidoptera and harmful mites, etc. Arthropod pests, and has a significant effect on root-knot nematodes. Abamectin fermentation broth contains 8 homologues: A1a, A1b, A2a, A2b, B1a, B1b, B2a and B2b. But at present, only the components of Abamectin B1 (Avermectin B1a and Abamectin B1b) have been purified and realized industrial application, other components may not be suitable for industrial application because of inconvenient extraction and purification; or Its activity is insignificant and not utilized. Therefore, the defi...

Claims

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Application Information

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IPC IPC(8): C07H17/08A01N43/90A01P5/00
CPCC07H17/08A01N43/90
Inventor 张海航王琳慧暴连群侯东伟刘现伟
Owner HEBEI XINGBAI AGRI SCI & TECH CO LTD