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Insecticide composition containing pyridine quinazoline and eucalyptol

A technology of pyridine quinazoline and eucalyptol, which is applied in the direction of insecticides, biocides, animal repellants, etc., and can solve the problems of pest resistance, reduced control effect of active ingredients, and increased dosage

Inactive Publication Date: 2020-05-22
JIANGXI ZHONGXUN AGROCHEM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, high-intensity use of chemical pesticides will lead to the emergence of pest resistance, resulting in reduced control effects of active ingredients and increased dosage, further aggravating the threat of pesticides to the environment

Method used

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  • Insecticide composition containing pyridine quinazoline and eucalyptol
  • Insecticide composition containing pyridine quinazoline and eucalyptol
  • Insecticide composition containing pyridine quinazoline and eucalyptol

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] Example 1: Determination of the joint toxicity of the composition of the present invention to aphids.

[0032] Refer to "Pesticide Indoor Bioassay Test Guidelines for Insecticides NY / T 1154.6-2006" and use the insect dipping method. Select the nymphs of peach aphid cultivated in the room with the same age, immerse the target insects in the liquid medicine for 10 seconds, absorb the excess liquid medicine with filter paper, and transfer the test insects to raise under normal conditions.

[0033] According to the survey results, the mortality rate of each treatment was calculated. DPS statistical analysis software was used for statistical analysis, and the regression equation of toxicity, lethal concentration, correlation coefficient, etc. were obtained, and the co-toxicity coefficient (CTC value) was obtained by Sun Yunpei's method.

[0034] Measured toxicity index (ATI) = (standard drug LC50 / test drug LC50) X 100.

[0035] Theoretical toxicity index (TTI) = Toxicity i...

Embodiment 2

[0041] Example 2 Determination of combined toxicity of the composition of the present invention to whitefly.

[0042] Refer to "Pesticide Indoor Bioassay Test Guidelines for Insecticides NY / T 1154.9-2008" and use the spray method.

[0043] Statistical analysis was carried out with DPS statistical analysis software, and the LC of each drug was calculated 50 , and calculate the co-toxicity coefficient (CTC value) of the mixture according to Sun Yunpei's method, the co-toxicity coefficient (CTC) ≥ 120 shows the synergistic effect; the co-toxicity coefficient (CTC) ≤ 80 shows the antagonism; CTC)<120 showed an additive effect.

[0044] As can be seen from Table 2, the measured results for whitefly, pyridine quinazoline, eucalyptol in the scope of 1:20-20:1 (by weight) combined toxicity coefficient (CTC) is greater than 120, indicating that the performance synergy Synergy.

[0045] Table 2 Determination of the toxicity of pyridine quinazoline, eucalyptol and their combinations t...

Embodiment 3

[0047] Example 3 Determination of the risk of resistance of the composition of the present invention to whitefly.

[0048] The concentration of the test agent is 30%-60% of the lethal dose of the target insect pest, and the living test insects are kept to continue breeding and breeding for the next generation of tests, so that 20 generations of test insects are repeatedly treated. Changes in the resistance of test insects to the tested agents, LC 50 The smaller the growth rate, the faster the growth of drug resistance.

[0049] According to Table 3, it can be seen that the combination of pyridine quinazoline and eucalyptol has a drug resistance growth rate significantly lower than that of a single agent of pyridine quinazoline and eucalyptol, indicating that the combination of pyridine quinazoline and eucalyptol can delay the occurrence of whitefly Drug resistance effect.

[0050] Table 3d- Determination of resistance of limonene and pyridine quinazoline to eggplant whitefly...

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Abstract

The invention relates to a pesticide composition, wherein the effective components of the composition are pyridine quinazoline and eucalyptol. According to the invention, the composition is used for preventing and treating aphids and whiteflies harmful to plants; through indoor co-toxicity coefficient measurement, pyridine quinazoline and eucalyptol are compounded according to a ratio of (1:20)-(20:1) to achieve a synergistic effect on aphids and whiteflies; and pyridine quinazoline and eucalyptol are mixed to prepare into a suspoemulsion and a dispersible oil suspending agent pesticide preparation, and the effect of preventing and controlling crop aphids and whiteflies in the field is obviously superior to that of single use of pyridine quinazoline and eucalyptol.

Description

technical field [0001] The invention relates to compound pesticide combination application technology. The combination of active ingredients pyridine quinazoline and eucalyptol has a synergistic effect in preventing and controlling plant pests within a certain range. [0002] technical background [0003] Aphids and Bemisia tabaci are pests that feed on plant sap, and they are a group that is more harmful in crop production. They are small in size, and the symptoms of damage are often not obvious in the early stage of occurrence, and they are easy to be ignored, but they are extremely numerous and often live in groups on tender plants. Branches and leaf backs absorb plant juice and plunder nutrients, causing branches, leaves and flowers to curl, and even whole plants to wither or die, resulting in heavy losses of crops in our country every year. Therefore, insecticides are commonly used in most farmlands to control piercing-sucking pests. However, high-intensity use of chemi...

Claims

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Application Information

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IPC IPC(8): A01N65/28A01N43/54A01P7/04
CPCA01N43/54A01N65/00A01N65/28Y02A50/30
Inventor 陈佛祥
Owner JIANGXI ZHONGXUN AGROCHEM
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