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Conopomorpha-sinensis-bradley-preventing eco-friendly ovicide and application method thereof

An environment-friendly, litchi stem borer technology, applied in the directions of insecticides, biocides, botanical equipment and methods, etc., can solve the problems of slow progress in the research and development and promotion of pest ovicides, and achieve resistance to drugs and environmental safety. High, reduced use effect

Active Publication Date: 2018-04-20
PLANT PROTECTION RES INST OF GUANGDONG ACADEMY OF AGRI SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, insect eggs are well protected by a solid egg shell, and most of the pesticides have no effect on them. The development and promotion of pest ovicides has been slow for many years, and this problem needs to be solved urgently

Method used

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  • Conopomorpha-sinensis-bradley-preventing eco-friendly ovicide and application method thereof
  • Conopomorpha-sinensis-bradley-preventing eco-friendly ovicide and application method thereof
  • Conopomorpha-sinensis-bradley-preventing eco-friendly ovicide and application method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] Diflubenzuron stock solution was prepared with acetone to a concentration of 10 4 mg / L (10 4 ppm) mother liquor, and then dilute the mother liquor into 20,10,5,2.5 and 1.25ppm concentration liquid with distilled water. Then, the above-mentioned five gradient concentration agents were used as test agents, and were evenly sprayed on litchi pedicle moth eggs, and the hatching amount of eggs was counted after 3-5 days. The results showed that the litchi pedicle moth eggs were highly sensitive to diflubenzuron, and the concentration of diflubenzuron at a concentration of 5 ppm to 10 ppm could make the eggs reach a mortality rate of more than 90%, which was the best application concentration.

[0021] Taking diflubenzuron at a concentration of 5ppm as an example, the phenotypic results are as follows: figure 1 As shown, A and C in the figure are litchi pedicle borer eggs after treatment with diflubenzuron and without treatment respectively, which are protected by careful an...

Embodiment 2

[0023] S1. Screening and ratio optimization of penetrant

[0024] Penetrant is one of the key raw materials of ovicide, which can help the main agent quickly penetrate into insect egg shells, and finally play a role in ovicide. Select four penetrants commonly used in production, namely, azone, thiazone, alkylphenol polyoxyethylene ether and sec-octyl alcohol polyoxyethylene ether, as candidates, and dilute the above four penetrants with 1% acetone to 1%, 0.5 %, 0.25% and 0.125% of the four gradient agents, were evenly sprayed on litchi pedicle moth eggs, 3-5 days later counted egg hatching and corrected treatment of egg mortality (the formula is as follows), the test results are shown in Table 1. On this basis, the concentration of reagents suitable for mixing was further screened out.

[0025]

[0026] When 5%< control group mortality rate ≤ 20%, correct the treatment group mortality rate:

[0027]

[0028] Table 1 The poisonous effect of different concentrations of p...

Embodiment 3

[0041] An environment-friendly ovicide for preventing and treating litchi pedicle moth, comprising 0.05% diflubenzuron, 10% secondary octanol polyoxyethylene ether, 0.2% stabilizer (sodium sorbate), antifreeze (propylene glycol) by mass fraction ) 1%, deionized water 88.75%, and a total of 100%, each component is added into a brown glass container in sequence and dosage, and fully stirred and mixed to prepare a suspension.

[0042] After the environment-friendly ovicide of the control litchi pedicle borer of the present embodiment is diluted 100 times with water, it is sprayed on 6 strains of litchi tree fruits (treatment group), and the spraying rate is 5L / strain, and untreated litchi fruit trees The test was carried out under the same conditions. After 7 days, it was found by random peeling test that the fruit decay rate of litchi in the treatment group was 10%, while the fruit decay rate of litchi in the untreated group was 35%.

[0043]The environment-friendly ovicide of p...

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Abstract

The invention discloses a conopomorpha-sinensis-bradley-preventing ovicide and an application method thereof. With respect to 100% of the total mass of the ovicide, the ovicide includes 0.05-0.1% of diflubenzuron, 10-20% of 2-octanol polyoxyethylene ether, 0.2-3% of a stabilizer, and 1-10% of an antifreezing agent, with the balance being water. The main raw materials of the provided ovicide comprise an insect growth regulator and a low-toxicity penetrant, and the stabilizer and antifreezing agent are chemical substances at a food additive or cosmetic additive level. The ovicide is high in environmental safety, low in application concentration and high in degradation speed, and isn't prone to make pests produce drug-resistance. The ovicide is an outstanding representative of broad-spectrumefficient eco-friendly green pesticides and can be applied to a large area. Furthermore, the provided ovicide is simple in formula. Diflubenzuron and 2-octanol polyoxyethylene ether which acts as a penetrant acts together to kill conopomorpha sinensis Bradley in an egg stage. The population quantity of pests is effectively controlled, the prevention burden in a later period is lightened, and application of chemical pesticides is greatly reduced.

Description

Technical field: [0001] The invention belongs to the technical field of agricultural production, and in particular relates to an environment-friendly ovicide for preventing and treating litchi pedicle borers and a using method thereof. Background technique: [0002] Litchi and longan are native to China, and are the dominant and precious fruits in our country. The cultivation area and fruit output of both rank first in the world. Litchi pedicle borer (Conopomorpha sinensis Bradley) is a frequent and explosive borer in litchi and longan cultivation. It spreads all over Southeast Asia and southeastern my country. "Zero tolerance" pest control object. At the same time, the litchi pedicle borer has always been a difficult problem in the prevention and control of fruit tree pests. The insect has the characteristics of boring and unique occurrence rules. It cannot be controlled in the larvae and pupal stages of the insect. In the adult stage, it can only be repeatedly applied in l...

Claims

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Application Information

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IPC IPC(8): A01N47/34A01N25/30A01P7/04A01G13/00
CPCA01G13/00A01N25/30A01N47/34
Inventor 姚琼陈炳旭董易之徐海明徐淑李文景
Owner PLANT PROTECTION RES INST OF GUANGDONG ACADEMY OF AGRI SCI
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