High-efficiency compound pesticide composition containing plant extract, and preparation method of composition

A technology of pesticide composition and plant extract, which is applied in the field of high-efficiency compound pesticide composition and its preparation, to achieve the effects of reducing the cost of use, reducing the side effects of pesticides, and ensuring stability

Inactive Publication Date: 2015-09-02
HEBEI UNIV OF ENG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

After research by the inventor, it was found that the compounding of the extract of Eupatorium adenophorum and hexaflumuron has a good synergistic effect within a

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] In order to verify the insecticidal effect of different ratios of Eupatoria adenophorum extract and hexaflumuron on rice pests, the indoor toxicity test of different ratios of Eupatoria adenophorum extract and hexaflumuron against rice pests was carried out, according to the following table The weight percentage in 1 is made into corresponding concentration, carries out indoor insecticidal test, to measure co-toxicity coefficient, the test result report of arrangement is specific as follows:

[0027] Test method: adopt the dipping feed method, that is, treat 30 4-5 instar Chilo suppressalis larvae, set up two repetitions, and soak in clean water as a control. Cut the rice stalks at the tillering stage that have not been applied with pesticides into 4-5 cm long pieces, put them into the above-prepared medicinal solution, soak for 1 minute, take them out, use absorbent paper to absorb the medicinal solution on the surface of the rice stalks, and put them in In the bowl, p...

Embodiment 2

[0032] A high-efficiency compound pesticide composition containing plant extracts, the components in parts by weight are: 20 parts of Eupatorium adenophorum extract, 20 parts of hexaflumuron, 12 parts of Nongru 500 (emulsifier), 12 parts of cyclohexanone (solvent) 5 parts, toluene (solvent) 13 parts, xylene (solvent) 30 parts; its preparation method, the specific steps are: weigh the material according to the weight ratio, and extract Eupatorium adenophorum and hexaflumuron in sequence Add it into the solvent, stir and mix evenly, add emulsifier, and stir for 30 minutes to get the product. The product was used to conduct a field efficacy test for controlling rice stem borer, and the control effect was above 98%, as shown in Table 2 for details.

[0033] Table 2 The control effect of the product of Example 2 to control rice stem borer 15 days after the drug (%)

[0034] deal with Dosage per mu (g / mu) dry heart rate% Control effect (%) Example 2 product 10...

Embodiment 3

[0036] A high-efficiency compound pesticide composition containing plant extracts, the components in parts by weight are: 50 parts of Eupatorium adenophorum extract, 5 parts of hexaflumuron, 8 parts of NP-10 (emulsifier), 80 parts of Tween (emulsifier) ​​2 parts, methanol (solvent) 15 parts, xylene (solvent) 20 parts; its preparation method, the specific steps are: weigh the material according to the weight ratio, and stir the Eupatorium adenophorum extract Add hexaflumuron and hexaflumuron into the solvent in turn, after stirring and mixing evenly, add an emulsifier, and stir for 30 minutes to obtain the product. This product was used to carry out the contact test of controlling the rice leaf roller borer, the rice leaf roller, and the test results are shown in Table 3.

[0037] Table 3 The test results of the contact test of the product of Example 3 to the rice leaf roller

[0038] Treatment concentration The number of tested worms (head) Number of dead insect...

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PUM

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Abstract

The invention discloses a high-efficiency compound pesticide composition containing plant extract, and a preparation method of the composition. The composition is prepared from effective components including eupatorium adenophorum extract and hexaflumuron, wherein the mass ratio of the eupatorium adenophorum extract to the hexaflumuron is (1-50): 1. According to the composition, the eupatorium adenophorum extract is mixed with the hexaflumuron according to the proportion, so that the advantages of a single preparation can be maintained, the dosage of the mixture is reduced, the pesticide effect is greatly improved, and the defects of the signal preparation are made up. The mixture has a remarkable effect for multiple resistant pests such as chilo suppressalis, tryporyza incertulas, rice leaf folder, cotton bollworm, empoasca flavescens, diamondback moth and the like, and is capable of expanding the pest control spectrum and delaying the drug resistance. The two pesticides are reasonably mixed according to different action ways and action mechanisms of the pests, so that the service life of the pesticide is prolonged, the drug resistance of the pests is delayed, and an effective way is provided for reducing the toxic or side effect of the pesticide. The mixture is a mixed preparation which is efficient and low in toxicity, and enables the pests not to easily have drug resistance.

Description

technical field [0001] The invention relates to a pesticide composition, in particular to a high-efficiency compound pesticide composition containing plant extracts and a preparation method thereof. Background technique [0002] Because people use a single dosage of chemical insecticides for a long time, pests are prone to develop resistance. In order to achieve the effect of pest control, they have to use more toxic pesticides or increase the amount of pesticides used, which not only increases the economic burden of farmers, but also pollutes the ecological environment. , destroy the ecological balance, affect the safety of agricultural products, and kill a large number of natural enemies of pests, resulting in more rampant pests. At present, there are a large number of mixed insecticides on the market, most of which are mixed with chemical pesticides, which are highly toxic to humans and animals, and after a long period of use, pests will also develop resistance to pes...

Claims

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Application Information

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IPC IPC(8): A01N65/12A01P7/04A01N47/34
Inventor 卢彦琦王兰明马晓娣刘艳芬李俊霞崔美香苑博华徐关印李焱
Owner HEBEI UNIV OF ENG
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