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Composition for preventing and controlling rice planthopper and preparation method of composition

A composition and technology of rice planthoppers, applied in the field of rice insect control, can solve the problems of affecting insecticidal effect, rice yield reduction, rice lodging, etc., and achieve good insecticidal effect, increase effect, and reduce insect damage

Inactive Publication Date: 2019-05-10
JIANGXI ZHONGHE CHEM IND
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Rice planthopper is one of the important pests of rice. It uses adults and nymphs to puncture rice plant tissue to suck nutrient solution and female ovipositor to puncture stem tissue to lay eggs, causing rice to fall and die. In addition, it can also spread southern rice black stripes Rice diseases such as dwarf disease cause rice yield reduction or even loss of harvest
At present, nitenpyram has a good insect control effect, but it is easy to make rice planthoppers develop resistance, thus losing its efficacy
Publication No. CN105410006A discloses a dinotefuran and nitenpyram compound water-dispersible granule and its preparation method. Dinotefuran and nitenpyram are mixed, but it is also easy to make rice planthoppers develop resistance and affect Insecticidal effect

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] A composition for controlling rice planthopper, comprising the following components: 40 parts of insecticide, 1 part of fatty alcohol sulfate ester salt, 5 parts of ammonium sulfate, 1 part of polyethylene glycol, 10 parts of auxiliary agent, and 15 parts of kaolin ;

[0025] The insecticide includes the composition of dinotefuran and nitenpyram according to the ratio of 1:80.

[0026] The auxiliary agent includes the following components in parts by weight: 20 parts of eucalyptus extract, 20 parts of cypress extract, 40 parts of tripterygium wilfordii extract, and 40 parts of sargassum extract.

[0027] The preparation method of the composition of controlling rice planthopper comprises the following steps:

[0028] (1) After the stems and leaves of eucalyptus, the stems and leaves of cypress, the rhizomes of Tripterygium wilfordii and the rhizomes of vines are pulverized, they are extracted with ethanol respectively to obtain the extract;

[0029] (2) Proportioning t...

Embodiment 2

[0032] A composition for controlling rice planthopper, comprising the following components: 80 parts of insecticide, 5 parts of fatty alcohol sulfate ester salt, 15 parts of ammonium sulfate, 5 parts of polyethylene glycol, 20 parts of auxiliary agent, and 30 parts of kaolin ;

[0033] The insecticides include dinotefuran and nitenpyram according to the composition of 80:1.

[0034] The auxiliary agent includes the following components in parts by weight: 40 parts of eucalyptus extract, 40 parts of cypress extract, 50 parts of tripterygium wilfordii extract, and 50 parts of sargassum extract.

[0035] The preparation method of the composition of controlling rice planthopper comprises the following steps:

[0036] (1) After the stems and leaves of eucalyptus, the stems and leaves of cypress, the rhizomes of Tripterygium wilfordii and the rhizomes of vines are pulverized, they are extracted with ethanol respectively to obtain the extract;

[0037] (2) Proportioning the weight ...

Embodiment 3

[0040] A composition for controlling rice planthopper, comprising the following components: 50 parts of insecticide, 2 parts of fatty alcohol sulfate ester salt, 8 parts of ammonium sulfate, 2 parts of polyethylene glycol, 15 parts of auxiliary agent, and 20 parts of kaolin ;

[0041] The insecticides include dinotefuran and nitenpyram according to the composition of 80:1.

[0042] The auxiliary agent includes the following components in parts by weight: 30 parts of eucalyptus extract, 30 parts of cypress extract, 45 parts of tripterygium wilfordii extract, and 45 parts of saberberry extract.

[0043] The preparation method of the composition of controlling rice planthopper comprises the following steps:

[0044] (1) After the stems and leaves of eucalyptus, the stems and leaves of cypress, the rhizomes of Tripterygium wilfordii and the rhizomes of vines are pulverized, they are extracted with ethanol respectively to obtain the extract;

[0045] (2) Proportioning the weight ...

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Abstract

The invention discloses a composition for preventing and controlling rice planthoppers and a preparation method of the composition, and belongs to the field of rice insect prevention. The compositioncomprises an insecticide, a fatty alcohol sulfate salt, ammonium sulfate, polyethylene glycol, an auxiliary agent and kaolin, wherein the insecticide is a mixture of dinotefuran and nitenpyram; and the auxiliary agent is a composition of a eucalyptus extract, a cypress extract, a tripterygium wilfordii extract and a hedyotis stem extract. According to the insecticide disclosed by the invention, dinotefuran and nitenpyram are mixed according to a specific proportion and have a synergistic effect, so that the respective efficacies of the dinotefuran and the nitenpyram can be improved, and the synergistic effect is achieved; the auxiliary agent is a botanical insecticide, the produced sensitizing substance can inhibit female spawning of the rice planthoppers, meanwhile inhibit growth of larvae and even kill the larvae, and the insecticidal effect is better especially aiming at the rice planthoppers which are homoptera insects. The auxiliary agent and the insecticide are matched with eachother, the synergistic effect is achieved, the insecticide quickly and efficiently kills pests, the resistance of the rice planthoppers can be reduced while the auxiliary agent kills the rice planthoppers, and a continuous killing and eliminating effect is achieved.

Description

technical field [0001] The invention relates to the field of rice insect control, in particular to a composition for controlling rice planthoppers and a preparation method thereof. Background technique [0002] Rice planthopper is one of the important pests of rice. It uses adults and nymphs to puncture rice plant tissue to suck nutrient solution and female ovipositor to puncture stem tissue to lay eggs, causing rice to fall and die. In addition, it can also spread southern rice black stripes Rice diseases such as dwarf disease can cause rice yield reduction or even loss of harvest. At present, nitenpyram has good insect control effect, but it is easy to make rice planthoppers develop resistance, thus losing its efficacy. Publication No. CN105410006A discloses a dinotefuran and nitenpyram compound water-dispersible granule and its preparation method. Dinotefuran and nitenpyram are mixed, but it is also easy to make rice planthoppers develop resistance and affect Insecticid...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01N65/40A01N51/00A01N43/40A01P7/04
CPCY02A50/30
Inventor 甘波
Owner JIANGXI ZHONGHE CHEM IND
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