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Pesticides containing 12alpha-hydroxyl rotenone

A technology of hydroxyrotenone and insecticides, applied in the field of pesticides, can solve the problems of pest resistance, pest control, affecting crop yield and quality, etc., and achieve the effect of good quick-acting and wide insecticidal spectrum

Inactive Publication Date: 2009-02-04
李有志
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] At present, chemically synthesized insecticides widely used in rice, cotton, vegetables and other crops, such as triazophos, abamectin, etc., due to long-term unreasonable use, have caused pests to develop resistance, and some pests have developed to be difficult to control seriously affect the yield and quality of crops

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0013] Embodiment 1: Dissolve 5Kg of 12a-hydroxyrotenone in 35Kg of xylene, after completely dissolving, add 5Kg of Nongru-500, add 5Kg of cyclohexanone, stir evenly and filter to obtain the 12a-containing rotenone of the present invention Insecticide emulsifiable concentrate preparation of -hydroxyrotenone is 10% 12a-hydroxyrotenone emulsifiable concentrate.

[0014] The 10% 12a-hydroxyrotenone EC prepared above was used to control cotton aphid Aphisgossypii Golver, cabbage caterpillar Pieris rapae (L.) and diamondback moth Plutellaxylostella L. larvae, yellow curved strip flea beetle Phyllotreta striolata (Fabricius) adults, rice vertical leaf roll Cnaphalocrocis medinalis larvae.

[0015] When the drug dosage per mu is 30mL and the water consumption per mu is 45L, when spraying evenly with a backpack sprayer, the blank control is sprayed with clear water. When spraying pesticides, Pieris rapae is at the 2nd instar blooming stage; diamondback moth is at the 3rd instar full ...

Embodiment 2

[0020] Embodiment 2: the 12a-hydroxyl rotenone of 20Kg, the saponin of 5Kg, the kaolin of 75Kg are mixed and pulverized, mixed, and sieved to obtain the insecticide wettable powder containing 12a-hydroxyl rotenone of the present invention, which is 20% 12a-Hydroxyrotenone wettable powder.

[0021] The 20% 12a-hydroxyrotenone wettable powder prepared above was used to control the larvae of the sweet potato hornworm Herse convolvuli Linné.

[0022] 20% 12a-hydroxyrotenone wettable powder has a dosage of 30g per mu, 90% trichlorfon crystal of the control agent has a dosage of 90g per mu, and the water consumption per mu is 45L. When spraying evenly with a backpack sprayer. The control effect is shown in the following table 2:

[0023] Table 2 The control effect of 20% 12a-hydroxyrotenone wettable powder on sweet potato hornworm larvae at different ages (%)

[0024] Application period

potion

1 day after the medicine to correct the prevention

effect ...

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PUM

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Abstract

An insecticide with 12a-hydroxy rotenone takes the 12a-hydroxy rotenone as a botanical insecticidal component, and can be added with a surfactant, an organic solvent and a diluent to be made into various dosage forms. The insecticide with the 12a-hydroxy rotenone is particularly applicable to controlling rice stem borers, cotton insects (cotton aphids), and vegetable insects (for example, cabbage moth, cabbage worms, yellow flea beetles, and the like). The insecticide with the 12a-hydroxy rotenone is characterized by good insecticidal effect, stable drug effect, good broad spectrum, and concurrently controlling a plurality of insects by once application, therefore, the control cost is lowered; the insecticide with the 12a-hydroxy rotenone can be widely used for controlling the insects of the crops such as paddy rice, vegetables, cottons, etc.

Description

Technical field: [0001] The invention relates to a pesticide, in particular to a pesticide prepared from the insecticidal component 12a-hydroxyrotenone. It can be widely used in the prevention and control of pests in vegetables, rice, cotton, sweet potatoes and other crops. Background technique: [0002] At present, chemically synthesized insecticides widely used in rice, cotton, vegetables and other crops, such as triazophos, abamectin, etc., due to long-term unreasonable use, have caused pests to develop resistance, and some pests have developed to be difficult to control It seriously affects the yield and quality of crops. Today, with more and more emphasis on environmental quality, people have higher and higher requirements for high efficiency, low toxicity and low residue quality of pesticides. Invention content: [0003] The technical problem to be solved by the present invention is: for the above-mentioned deficiencies in the prior art, provide a kind of insect pe...

Claims

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Application Information

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IPC IPC(8): A01N43/90A01P7/00
Inventor 李有志
Owner 李有志
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