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Insecticidal composition and usage using azadirachtin and total saponins of willow as active ingredients

An insecticidal composition and technology of active ingredients, applied in the field of pest control, can solve problems such as affecting the yield and quality of vegetables, and achieve the effects of broadening the scope of use, reducing the cost of pesticides, and improving the control effect.

Inactive Publication Date: 2020-08-25
YUNNAN AGRICULTURAL UNIVERSITY
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  • Abstract
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AI Technical Summary

Problems solved by technology

The 3rd to 4th instar larvae can eat the leaves into holes and notches, and in severe cases, the leaves will be eaten into a net shape, which seriously affects the yield and quality of vegetables
[0007] So far, there has been no literature report on the strong synergistic effect of azadirachtin combined with total saponins of willow

Method used

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  • Insecticidal composition and usage using azadirachtin and total saponins of willow as active ingredients
  • Insecticidal composition and usage using azadirachtin and total saponins of willow as active ingredients
  • Insecticidal composition and usage using azadirachtin and total saponins of willow as active ingredients

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[0015] 1. Materials and methods

[0016] 1.1 Materials

[0017] Test agent: 50% azadirachtin technical: provided by Yunnan Zhongke Biological Industry Co., Ltd.; total saponins of willow salix: prepared by the botanical pesticide laboratory of Yunnan Agricultural University according to the patent ZL201310075529.5 method.

[0018] Insect source for testing: Plutella xylostella.L, the mature pupae of Plutella xylostella were collected from the cabbage with Plutella xylostella self-raised in the laboratory, put into a triangular flask, and inserted into the bottle after eclosion. Self-made blow-molded paper oviposition boards were used to feed the adults with 10% honey water, and the oviposition boards and honey water were replaced every day, and the oviposition boards were placed in an incubator at 26±1°C for moisturizing and hatching. Put the hatched oviposition plate on fresh vegetable leaves, the eggs hatch into larvae, feed on the vegetable leaves independently, replace th...

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Abstract

The present invention discloses an insecticidal composition with azadirachtin and salix myrtillacea total saponins as active ingredients and a usage thereof, and belongs to the field of pest control in process of crop planting. The composition comprises the active ingredients of the azadirachtin and salix myrtillacea total saponins; the weight ratio of the azadirachtin to the salix myrtillacea total saponins is 1:(0.1-10); and most preferably, the weight ratio of the azadirachtin to the salix myrtillacea total saponins is 1:6.38. The composition is used for the pest control in agricultural production, and preferably used for controlling lepidopteran pests, particular for controlling plutella xylostella L. The salix myrtillacea total saponins and azadirachtin have extremely strong enhancingfunctions on drug effects each other, can greatly improve the control effects on agricultural pests, and have the effect far superior to that of the single use of the salix myrtillacea total saponinsor azadirachtin, can significantly reduce cost of pesticides and broadens the scope of the use.

Description

technical field [0001] The invention belongs to the field of pest control during crop planting, and in particular relates to an insecticidal composition with azadirachtin and total salix saponin as active components and its usage. Background technique [0002] Azadirachtin (Azadirachtin) is a class of highly active compounds isolated from neem, which belongs to tetracyclic triterpenoids. Active substances are contained in neem fruits, seeds, seed cores, branches, leaves, bark and sap. So far, more than 100 compounds have been found in neem, and at least 70 compounds have biological activity, mainly in India. Azadirachtin, azadirachtriol, and azadirachtin, etc., these extracts have the functions of repelling insects, interfering with oviposition, interfering with insect variation, making them unable to metamorphose into adults, repelling larvae and inhibiting their growth to achieve insecticidal purposes. [0003] Azadirachtin has become a commonly used biopesticide at this ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A01N65/08A01N43/90A01P7/04
CPCA01N43/90A01N65/00A01N65/08
Inventor 秦小萍李丰超代玉玲吴国星
Owner YUNNAN AGRICULTURAL UNIVERSITY
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