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Pesticide composition with synergistic effect

A pesticide composition and the technology of the composition, which are applied in the application, animal repellent, plant growth regulator and other directions, can solve the problems of resistance and high cost, and achieve the goal of reducing harm, reducing labor costs for prevention and control, and reducing environmental pollution. Effect

Active Publication Date: 2010-01-13
SHENZHEN NOPOSION AGROCHEM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, its cost is relatively high, and the drug is similar to imidacloprid, and there is a risk of resistance when used alone

Method used

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  • Pesticide composition with synergistic effect
  • Pesticide composition with synergistic effect
  • Pesticide composition with synergistic effect

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] Example 1 Toxicity determination of thiacloprid, pyridaben and different ratios to tea leafhoppers

[0024] The tea leafhopper adults collected from the field were reared for the second generation in the greenhouse, and the 4th instar nymphs with uniform growth were selected as the test insects. Using the leaf dipping method, first conduct a pre-experiment on the test agent, and then dilute it into 5 gradient concentrations according to the doubling relationship, soak the fresh tea leaves for 10 seconds, and after the liquid on the surface of the tea leaves is dried, put the tea leaves in the pre-prepared Good test tube. Each treatment was repeated 3 times, and 20 third-instar leafhopper nymphs were placed in a 2.5cm×20cm test tube each time to allow the leafhoppers to eat the tea leaves in the test tube. Set water blank control. 24 hours after the inoculation, the death of the tea leafhopper was investigated. Utilize DPS data statistical analysis software to find vi...

Embodiment 2

[0035] Example 2 Toxicity determination of thiacloprid, pyridaben and different ratios to whitefly

[0036] Black spiny whitefly was collected from Zhangping tea area and cultivated by the laboratory of our company's research institute. The test insects were 3rd instar nymphs after the development of eggs laid by adults on fresh tea leaves. On the basis of the preliminary test, the medicine was diluted to 6 concentrations, and clear water was used as a control. Use the agar-moisturizing leaf dipping method. Add agar liquid to a plastic petri dish with a diameter of 40mm to make an agar moisturizing petri dish, and use an insect needle to punch holes in the petri dish cover for ventilation; use a puncher to get fresh tea leaves into 38mm discs, and put them in the test agent Soak in the medium for 15s, take it out to dry, and put it into the prepared agar culture dish; insert 30 blackthorn whiteflies into each dish, and repeat 4 times for each treatment. After 48 hours, exami...

Embodiment 3

[0041] Example 3 The preparation method of 21% thiacloprid·pyridaben emulsifiable concentrate

[0042] 95% Thiacloprid Technical 21.05g

[0043] 95% pyridaben technical 1.05g

[0044] Sodium dodecylbenzenesulfonate (emulsifier) ​​8.2g

[0045] Benzyl polyphenol polyoxyethylene ether (emulsifier) ​​2.4g

[0046] Toluene (solvent) make up to 100g

[0047] According to the requirements of the formula, first mix and stir thiacloprid and pyridaben in the preparation kettle with a solvent, after they are completely dissolved, slowly add the remaining solvent and emulsifier, and get a uniform oil phase after fully stirring. Obtain 100 grams of 21% thiacloprid·pyridaben emulsifiable concentrate (the weight ratio of thiacloprid and pyridaben is 20:1).

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Abstract

The invention relates to a pesticide composition with a synergistic effect, in particular to a pesticide composition containing effective constituents of thiacloprid and pyridaben with a weight ratio of 80:1-1:80, and the accumulated weight percent of the effective constituents is 1-80 percent. When being actually applied, the composition is prepared into different application preparations being preferable to missible oil, wetting powder, microemulsion, emulsion in water and a suspending agent. The composition has synergistic effect and can reduce the usage amount of pesticides and delay the development of the drug resistance of pests. The composition can control agricultural pests and be particularly used for controlling lesser green leaf hoppers and aleurocanthus spiniferus.

Description

technical field [0001] The invention relates to a pesticide composition, in particular to a pesticide composition containing thiacloprid as an active ingredient. Background technique [0002] Tea leafhopper is an important pest of tea. In recent years, due to long-term and irrational use of pesticides, the resistance of tea leafhopper has been continuously enhanced, and the control effect of most existing pesticides is not satisfactory. Black thorn whitefly is a kind of whitefly that occurs commonly and causes serious damage. It mainly harms citrus and tea trees. In recent years, this insect has been rampant in some areas and has a tendency to spread rapidly. [0003] For frequent pests such as green leafhopper and black thorn whitefly, under long-term application conditions, the resistance of pests gradually increases, and the control effect of commonly used pesticides on pests gradually decreases when used alone. New and reasonable pesticide compounds can significantly i...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01N47/40A01N43/58A01P7/04
Inventor 巩自勇朱卫锋郭东岳毕湘黔孔建
Owner SHENZHEN NOPOSION AGROCHEM
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