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A kind of biopesticide composition for controlling tea geometrid

A biopesticide and composition technology, applied in the field of pesticides, can solve the problems of propylene glycol alginate and other problems, and achieve the effects of producing drug resistance, reducing residues, and reducing dosage

Active Publication Date: 2020-07-10
XINYANG AGRI & FORESTRY UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

There is no compounding of propylene glycol alginate and azadirachtin in the prior art

Method used

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  • A kind of biopesticide composition for controlling tea geometrid
  • A kind of biopesticide composition for controlling tea geometrid
  • A kind of biopesticide composition for controlling tea geometrid

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] Example 1 : Indoor Toxicity Determination of Propylene Glycol Alginate and Azadirachtin to Tea Geometrid

[0018] Tea geometrid larvae were collected from tea gardens, and after being reared for 3 generations in a light incubator, healthy and consistent 3rd instar larvae were selected for toxicity testing. Cut tea tree tender shoots about 30cm long in the field, and insert 15 branches into a jar filled with water. 20 tea geometrid larvae were connected to each cluster, and 15 mL of each diluted agent was sprayed with a manual sprayer, and 1‰ Tween aqueous solution was used as a blank control. Each treatment was repeated 5 times. After the medicinal solution on the surface of the leaves is dry, carefully pick the tea geometrid into a petri dish (diameter 15cm), 20 as a dish, feed the leaves sprayed with the same medicinal agent, raise them in a light incubator, observe and record 24 hours after the medicine circumstances of death. Lightly touch the worm body with a b...

Embodiment 2

[0027] Example 2 : Field Control Effects of Propylene Glycol Alginate and Azadirachtin on Tea Geometrid

[0028] The test set 5 treatments, each treatment was repeated 6 times, arranged randomly, and the area of ​​a single plot was 50m 2 . The dosages of the three agents are shown in Table 2, and 1‰ Tween water was used as the blank control. Spray evenly with a motorized sprayer, every 667m 2 The water consumption is 50L. Investigate the base number of insect populations in each plot before spraying, and investigate the residual insects in each plot on the 3d and 7d after spraying, and calculate the corrected control effect according to the following formula.

[0029] The formula for calculating the control effect of different agents is as follows:

[0030] Decrease rate of insect population (%)=(number of insect population before drug-number of insect population after drug) / number of insect population before drug×100%;

[0031] Corrected control effect (%)=(the insect ...

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Abstract

The invention belongs to the technical field of pesticide, in particular to a biopesticide composition for preventing and controlling ectropis oblique. The biopesticide composition is characterized inthat the effective component is prepared from propylene glycol alginate and azadirachtin according to a weight ratio of (1:30) to (30:1). The biopesticide composition for preventing and controlling the ectropis oblique has remarkable synergistic effect and persistent effect; the dosage of the pesticide is lowered; residue of the pesticide on the crop is lowered; environment pollution is lowered;the biopesticide is safe to human beings and livestock, is high in environment compatibility, and is not easy to produce pesticide resistance.

Description

technical field [0001] The invention belongs to the technical field of pesticides, and in particular relates to a biological pesticide composition for preventing and treating tea geometrids. Background technique [0002] Tea geometrid, also known as arch worm, belongs to Lepidoptera and is one of the main pests of tea trees in my country. The annual generation of larvae is large, the reproduction rate is high, the spread is rapid, and it is easy to break out and cause disasters. It can eat a piece of tea garden into polished rods, resulting in a large reduction in tea production and seriously affecting the quality of tea. In order to prevent the occurrence and development of tea geometrids, long-term single use of chemical agents has resulted in continuous increase in drug resistance, continuous increase in dosage, serious environmental pollution, and food safety problems. Therefore, it is urgent to screen out highly effective and low-toxic tea geometrid control agents to p...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A01N43/90A01N43/16A01P7/04
CPCA01N43/16A01N43/90
Inventor 王国君扶胜兰翟敏陈利军周顺玉陈俊华洪枫
Owner XINYANG AGRI & FORESTRY UNIV