Botanical mixed insecticide and application thereof

A technology of pesticides and botanical sources, applied in the field of botanical mixed pesticides, can solve the problems of inability to meet the needs of field control of tea leafhoppers, high requirements for pesticide application conditions, and low pest control effects, and achieve good results. Social benefit, improvement of control effect, effect of reducing usage

Pending Publication Date: 2020-04-07
HUBEI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The common feature of botanical insecticides such as tea saponin water agent is that the control effect on pests is lower than that of chemical insecticides, and the effect is slow. shortcoming
At present, the field control effect of 30% tea saponin water agent on tea leafhopper is only about 60% (the field control effect is more than 70%, which is ideal), which cannot meet the field control needs of tea leafhopper

Method used

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  • Botanical mixed insecticide and application thereof
  • Botanical mixed insecticide and application thereof
  • Botanical mixed insecticide and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] Example 1 The control effect test of tea saponin and azadirachtin in different proportions and dilution combinations against the green leafhopper

[0020] The test of this embodiment was carried out in a tea farm in Guanya Town, Shiyan City, Hubei Province, and the control object was the small green leafhopper. The tested insecticides were 30% tea saponin aqueous solution and 0.3% azadirachtin EC mixed in 5 ratios of 3:1, 2:1, 1:1, 1:2 and 1:3. All ratios were diluted 4 times: 300×, 450×, 600× and 750×. A total of 5×4=20 treatment combinations were numbered TAM1, TAM2-TAM20 respectively. See Table 1 for the preparation of the control pesticides and their concentrations.

[0021] Plot arrangement and spraying method: The plots are arranged in random blocks, and the plot area is 20m2 2 , repeat 3 times. Apply the medicine during the high incidence period of green leafhopper in tea. Use a knapsack sprayer (model: 3WF-3A) to evenly spray the middle, upper and sides of ...

Embodiment 2

[0031] Example 2 Field control test and effect of preventing and controlling the small green leafhopper of tea

[0032] The experiment of this example was carried out in the tea base of the Tea Research Institute of the State Academy of Agricultural Sciences in Enshi City, Hubei Province, and the control object was the small green leafhopper. The tested pesticide is the invention product TAM6. The control insecticides and their concentration preparations are shown in Table 2.

[0033] Plot arrangement and spraying method: The plots are arranged in random blocks, and the plot area is 20m2 2 , repeat 3 times. Apply the medicine during the high incidence period of green leafhopper in tea. Use a knapsack sprayer (model: 3WF-3A) to evenly spray the middle, upper and sides of the tea pod to the tip of the leaves to form water droplets. Use 2 sprays. Apply again 7 days after the first application. No other pesticides were used to control pests and diseases during the experiment...

Embodiment 3

[0038] Example 3 Field control test and effect of preventing and controlling tea thrips

[0039] The experiment of this embodiment was carried out in the tea base of Tea Research Institute, State Academy of Agricultural Sciences, Enshi City, Hubei Province, and the control object was tea thrips. The tested pesticide is the product of this invention, and the control pesticide and the concentration preparation are shown in Table 3.

[0040] Plot arrangement and spraying method: The plots are arranged in random blocks, and the plot area is 20m2 2, repeat 3 times. In June 2019, it was applied during the high incidence of tea thrips. Use a knapsack sprayer (model: 3WF-3A) to evenly spray the middle, upper and sides of the tea pod to the tip of the leaves to form water droplets. 2 applications, and another application 7 days after the first application. No other pesticides were used to control pests and diseases during the experiment.

[0041] Investigation method, time and fre...

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Abstract

The invention belongs to the technical field of agricultural pest control, and particularly relates to a botanical mixed insecticide and an application thereof. The botanical insecticide is obtained by mixing a 30% aqueous tea saponin solution with 0.3% azadirachtin emulsifiable concentrate according to a ratio of 2:1 and diluting the obtained mixture for 450 folds, and the insecticide is appliedfor two times, namely the insecticide is applied once after 7 days, in order to prevent and control tea lesser leafhoppers in a tea garden. The prevention effect on the tea lesser leafhopper is 88.47%7 days after the product is applied, and the prevention effect on the tea thrips is 92.13% 14 days after theproduct is applied. The product can well control the harms of tea tree pests such as tea lesser leafhopper, reduces the use amount of chemical pesticides, improves the yield and quality of tea leaves, and increases the income of tea growers. The product is of great important theoretical andpractical significance to promoting the development of organic tea in China and protecting the environment.

Description

technical field [0001] The invention belongs to the technical field of agricultural pest control, and in particular relates to a plant-derived mixed pesticide and its application. Background technique [0002] The green leafhopper is one of the main pests of tea trees in my country. There are more than 60 species of leafhoppers in my country, among which, Empoasca onukii is the dominant species in tea gardens in my country (Xiao Qiang, 2015). The insect has strong fecundity and overlapping generations in the field. After the insect sucks the sap of the tea tree in large quantities, the new leaves of the tea tree are damaged and the growth is retarded, resulting in a decrease in yield and quality (Li Hongli et al., 2017). In addition, the small green leafhopper also harms some field vegetable crops and grapes (Zhang Jundai et al., 2017). [0003] At present, the main control measures of Green Leafhopper are: (1) agricultural control; (2) physical control; (3) chemical cont...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01N43/16A01N43/90A01P7/04
CPCA01N43/16A01N43/90
Inventor 彭宇宗三林张加川赵耀云月利宋聪徐卓
Owner HUBEI UNIV
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