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Pesticide for crop

A technology for pesticides and crops, applied in the field of pesticides applied in the juvenile period, can solve the problems of high toxicity of organophosphorus pesticides, increased resistance to pesticides, high cost of grain and cotton crops, etc. The effect is unstable, the effect is obvious, and the total price is low

Inactive Publication Date: 2003-03-19
钱永康
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Rice, cotton, corn and other crops were deeply harmed by borers and other pests in the early stage. Traditionally used organophosphorus insecticides were eliminated due to their high toxicity. It is difficult to play a role due to the increase of drug resistance
Molecular formula is C 22 h 19 C 12 NO 3 Cypermethrin and its isomer lambda-cypermethrin are insecticides with broad insecticidal spectrum, high efficiency and low toxicity, but because of their high price, the cost of using them in grain and cotton crops is too high for ordinary farmers to bear

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1   preparation example

[0017] Take by weighing trichlorfon 32.5kg, beta-cypermethrin 0.1kg whose structural formula is A, take by weighing No. 1 auxiliary agent 0.4kg, filler kaolin 0.2kg, above-mentioned material is made finished product by soluble preparation production process, with every bag of 100g, 150g Packed in two sizes.

Embodiment 2

[0018] Example 2 Application effect comparison example [see Table 1]

[0019] In Table 1, serial numbers 1 to 9 divide the two active ingredients into reagents in different proportions, wherein serial numbers 2 to 8 are in accordance with the insecticide of the present invention, serial number 1 is trichlorfon insecticide, and serial number 9 is beta-cypermethrin insecticide Agent, serial number 10 is the comparative example of not using insecticide. Each reagent listed in the table was tested for its killing effect on rice stem borer larvae in the greenhouse.

[0020] The test results showed that the No. 5 reagent [trichlorfon: beta-cypermethrin = 32.5:1] completely killed the larvae of Chilo suppressalis, with a control effect of 100%, and the No. 4 [43.3:1] had a control effect of 98.8%, which was the best. Proportion; No. 3 [ratio of the two active ingredients is 65:1] the control effect reaches 94%, which is a better ratio. Although the active ingredient of No. 6 is 35:1...

Embodiment 3

[0022] Example 3 Comparison of the field control effects of the insecticide of the present invention and isocarbophos+triazophos insecticide against rice borer

[0023] The serial number 1 test of table two and the serial number 2 test adopt the insecticide of the present invention of following weight ratio:

[0024] Trichlorfon 75%

[0025] Beta-Cypermethrin 2.0%

[0026] Auxiliary No. 1 5%

[0027] Additive No. 2 6%

[0028] The remainder of the filler No. 3 test used isocarbophos + triazophos insecticides, No. 2 and No. 3 tests used the second spraying at intervals of seven days, and No. 4 was a comparative example without pesticides.

[0029] The insecticide of the present invention of above proportioning is added a small amount of water by every mu 150 grams of application rate and is stirred evenly, then by every mu watered 50 kilograms, evenly sprays with sprayer. The above spraying place is Yufeng Village, Yufeng Town, Jianhu County, Jiangsu Province, and the spray...

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PUM

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Abstract

The pesticide for crop has effective components including trichlorfon and high effect cypermethrin or cypermethrin in the weight ratio of 1-130, preferably 25-45 and supplementary components including surfactant, agglomeration resisting agent and filler. It is diluted with water before sprayed to rice field to prevent and kill striped rice borer and yellow rice borer and other borer with the use amount being 50-150 g each mou.

Description

(1) Technical field [0001] The invention relates to an insecticide for crops, in particular to an insecticide used for the juvenile stage of crop pests, and belongs to the field of pesticides. (2) Background technology [0002] Rice, cotton, corn and other crops were deeply harmed by borers and other pests in the early stage. Traditionally used organophosphorus insecticides were eliminated due to their high toxicity. It has been difficult to play a role due to the increase of drug resistance. Molecular formula is C 22 h 19 C 12 NO 3 Cypermethrin and its isomer lambda-cypermethrin are insecticides with broad insecticidal spectrum, high efficiency and low toxicity, but because of their high price, the cost of using them in grain and cotton crops is too high for ordinary farmers to bear. [0003] The object of the present invention is to solve the above-mentioned problems existing in current pesticides, and provide a crop pesticide suitable for killing juvenile pests, whic...

Claims

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Application Information

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IPC IPC(8): A01N53/08
Inventor 钱永康蔡道基
Owner 钱永康
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