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Compound biological insecticide of veratine and chlorobenzamide

A technology of chlorantraniliprole and biological insecticides, applied in the field of compound insecticides, can solve the problems of low dosage, narrow insecticidal spectrum, insect paralysis, etc., and achieve the activity and synergy of expanding insecticidal spectrum The activity of the insecticidal spectrum and the effect of reducing the cost of use

Active Publication Date: 2019-02-22
JINLING INST OF TECH
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AI Technical Summary

Problems solved by technology

[0004] Chlorantraniliprole (Chlorantraniliprole) belongs to o-formamidobenzamide insecticide, is a kind of highly efficient, low toxicity, low Residual, broad-spectrum insecticides can efficiently activate insect ryanodine receptors, excessively release intracellular calcium ions, and cause paralysis and death of insects, especially for larvae of lepidopteran pests with high activity, long duration, and safe interval Short, the toxicity is only slightly toxic, and the drug has a wide insecticidal spectrum, especially for Lepidoptera pests such as S. The larvae of caterpillars and diamondback moths have high activity, and a very low dosage can achieve good results, but the effect on Homoptera pests such as aphids is poor, so it is not recommended to use
[0005] There are many studies and reports on the biological activity of veratrine and chlorantraniliprole on vegetable pests, but veratrine is mainly used for the control of pests such as aphids and leafhoppers, and the effect is better, while chlorantraniliprole has a good effect on scale The control effects of the winged pests Spodoptera litura and diamondback moth are relatively ideal, but the effect on Homoptera insects such as aphids is poor. The insecticidal spectrum of the two insecticides is complementary, but there is no increase in their compounding. Therefore, in order to solve the problems of narrow insecticidal spectrum and slow drug effect when veratrine and chlorantraniliprole were used alone, a kind of insecticidal spectrum with wider insecticidal effect was designed. Mixed Insecticide of Veratrine and Chlorantraniliprole

Method used

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  • Compound biological insecticide of veratine and chlorobenzamide
  • Compound biological insecticide of veratine and chlorobenzamide
  • Compound biological insecticide of veratine and chlorobenzamide

Examples

Experimental program
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Effect test

experiment example 1

[0018] Experimental example 1: Screening of the compound ratio of veratrine and chlorantraniliprole against melon aphid and determination of co-toxicity coefficient

[0019] 1.1 Test pests and test methods

[0020] The melon aphids raised the melon aphid adults on the cucumber in the greenhouse, and inoculated them on the cucumber seedlings that had grown to 2-3 expanded leaves without insects. After the nymphs were produced, the adults were removed in time, and the cucumber seedlings were placed in an incubator with an ambient temperature of 25°C. Wait until it develops to the 2nd instar nymph as a stand-by.

[0021] 1.2 Drugs to be tested

[0022] 0.5% veratrine soluble (Chengdu New Chaoyang Crop Science Co., Ltd.)

[0023] 5% Chlorantraniliprole SC (Puzun) (produced by DuPont, USA)

[0024] The mixture of veratrine and chlorantraniliprole is prepared from a single dose according to the ratio requirements

[0025] 1.3 Experimental method

[0026] 1.3.1 Toxicity determi...

Embodiment 2

[0048] Example 2: Veratrine and chlorantraniliprole and (1:2) mixture toxicity and co-toxicity coefficient determination to Plutella xylostella 2.1 Test pests and test methods

[0049] Plutella xylostella is reared indoors with germinated seedlings of rapeseed, and is used as a stand-by when it develops to the 2nd instar nymph.

[0050] 2.2 Drugs to be tested

[0051] Same as 1.2

[0052] 2.3 Experimental method

[0053] The concentration of chlorantraniliprole was 5mg / L, 10mg / L, 20mg / L, 40mg / L, 80mg / L; the concentration of veratrine was 25mg / L, 50mg / L, 100mg / L, 200 / L, 400mg / L; (1:2) mixture was prepared according to the concentration of 5mg / L, 10mg / L, 20mg / L, 40mg / L, 80mg / L. Toxicity was determined by leaf dipping method. Soak the cabbage leaves that have not been exposed to any chemicals for 10 seconds in the prepared 5 concentrations of the drug solution, take them out and dry them, then put them into a petri dish, and insert 10 healthy 2nd instar larvae of the same si...

Embodiment 3

[0059] Example 3: Toxicity of veratrine and chlorantraniliprole and (1:2) mixture to Spodoptera litura and co-toxicity coefficient determination

[0060] 3.1 Test pests and test methods

[0061] Spodoptera litura was reared indoors with artificial feed, and it was used as a stand-by when it developed to the second instar nymph.

[0062] 3.2 Drugs to be tested

[0063] Same as 1.2

[0064] 3.3 Experimental method

[0065] The concentration of chlorantraniliprole was 5mg / L, 10mg / L, 20mg / L, 40mg / L, 80mg / L; the concentration of veratrine was 25mg / L, 50mg / L, 100mg / L, 200 / L, 400mg / L; (1:2) mixture was prepared according to the concentration of 5mg / L, 10mg / L, 20mg / L, 40mg / L, 80mg / L. Toxicity was determined by leaf dipping method. Soak the cabbage leaves that have not been exposed to any chemicals for 10 seconds in the prepared 5 concentrations of the drug solution, take them out and dry them, then put them into a petri dish, and insert 10 healthy 2nd instar larvae of the same s...

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Abstract

The invention discloses a compound biological insecticide of veratine and chlorobenzamide. The compound biological insecticide consists of the veratine and the chlorobenzamide of which the mass ratiois 1:20-20:1. The invention further discloses the application of the compound biological insecticide to the prevention and the control of vegetable pests. A compound of the veratrine and the chlorfenamide has a synergistic effect on the insecticidal activities of aphid and plutella xylostella. The compound biological insecticide disclosed by the invention is suitable for the prevention and the control of lepidopteran pests such as aphids, Plutella xylostella and Spodoptera litura on vegetable crops.

Description

technical field [0001] The invention belongs to the technical field of pest control, and in particular relates to a compound insecticide with synergistic activity and expanded insecticidal spectrum for controlling vegetable pests. Background technique [0002] During the growth and development of crops, they are vulnerable to various pests, especially vegetable crops, which have a wide variety of pests and serious damage, such as aphids, diamondback moths, and cabbage caterpillars. For a long time, chemical control has been the main control method of crop pests, that is, the application of chemical pesticides. However, with the long-term use of chemical pesticides, pests are prone to develop drug resistance, resulting in a decline in the control effect, and the frequent use of chemical pesticides damages the ecological environment. and threaten human health, so that the biological control of pests has attracted more and more attention. However, compared with chemical insect...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01N43/90A01N43/56A01P7/04
CPCA01N43/56A01N43/90
Inventor 朱丽梅宰学明徐敏张波
Owner JINLING INST OF TECH
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