A kind of method for using plant essential oil to prevent and control the gray tea foot moth

The technology of plant essential oil and tea chia moth is applied in the field of tea tree pest control, which can solve the problems of excessive pesticide residues in finished tea and pest resistance, etc., and achieve the effect of high ecological and social benefits.

Active Publication Date: 2020-06-23
江西省农业科学院园艺研究所
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In terms of the control of gray tea-foot moth, methods include chemical control, biological control, agricultural control, physical control, etc. Among them, chemical control is still the main method adopted in the current production due to its direct effect, simple operation, and high cost-efficiency. Spraying a large amount of pesticides in the medium and high-quality tea is prone to many negative effects such as excessive pesticide residues in finished tea and resistance of pests.

Method used

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  • A kind of method for using plant essential oil to prevent and control the gray tea foot moth

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] During the outbreak of the gray tea-foot moth in the tea garden in summer, the control area was evenly sprayed on the leaves of the tea trees according to the amount of water per mu, and the survival rate of the gray tea-foot moth was statistically calculated before watering, 1d, 3d and 7d after water spraying. 100%, 110.5%, 132.7% and 204.8%, which are used as blank controls for statistics on the control effect of the control moth. The treatment area was sprayed with 500 times of plant essential oil (garlic essential oil: cypress essential oil: peppermint essential oil: pepper essential oil = 5:2:2:1), before spraying, 1d, 3d and 7d after spraying, respectively, to investigate gray tea feet. According to the number of moth populations, the corrected control effects of 1d, 3d and 7d after treatment were 61.6%, 88.5% and 96.4%, respectively.

Embodiment 2

[0028] In the tea garden (20 mu) where the gray tea-foot moth occurred seriously in the previous year, 5 gray tea-foot moth sex pheromone traps were evenly arranged, and the lure cores were replaced regularly to monitor the occurrence regularity of the gray tea-foot moth. After harvesting the spring tea (April 20), at the 2nd instar stage of the gray tea-foot moth larvae, evenly spray plant essential oils (garlic essential oil: cypress essential oil: peppermint essential oil: pepper essential oil = 5:2:2:1) 500 times Liquid, randomly sampled 10 points (1 meter of tea line) in the 1d, 3d and 7d after the drug, the average statistical control effect was 59.3%, 85.6% and 99.1%, respectively. After that year, no prevention and control measures were carried out for the tea garden cichlid moth. The monitoring results showed that the damage of the gray tea cricket moth did not exceed the control index in that year, which was significantly better than the chemical control effect in pre...

Embodiment 3

[0030] In the previous year, the tea garden (800 mu) where the black tea-foot moth occurred seriously was evenly divided into 10 plots, and one gray tea-foot moth sex pheromone trap was arranged in each plot, and the lures were replaced regularly to monitor the occurrence of gray tea-foot moth. After harvesting the spring tea (May 2-3), evenly spray plant essential oil (garlic essential oil: cypress essential oil: peppermint essential oil: pepper essential oil = 5:2:2:1) 500 times liquid, random sampling of 5 points (1 meter of tea row) in each plot to count the control effect on 1d, 3d and 7d after treatment, the average control effect of 50 statistical points was 53.9%, 82.4% and 93.2% respectively. Afterwards, monitoring the damage of the gray tea-foot moth, the results showed that the damage of the gray tea-inch moth (2nd instar larva) exceeded the control index only on September 5 of the year, and the annual damage peak 2 times was significantly lower than the 3 times of c...

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Abstract

The invention discloses a method for preventing and controlling ectropis grisescens warren by utilizing plant essential oil. The plant essential oil is a volatile secondary metabolite which is refinedand extracted from the tissues, such as flowers, leaves, fruit, roots and stems, of a plant, and has good inhabiting effects of expelling, contact-killing, stomach-poisoning and the like, and can serve as a natural plant insecticide. Galic essential oil, cedar-wood essential oil, mentha essential oil and pepper essential oil are mixed in the mass ratio of 5 to 2 to 2 to 1; the mixture is dilutedby 100 to 750 times and is uniformly sprayed on tea tree leaves in the 1 to 3-age outbreak period of young ectropis grisescens warren, and the young ectropis grisescens warren can be controlled afterthe insecticide is applied one day; the seven-day preventing efficiency can reach 95 percent or more. The insecticide application frequency of the current year can be remarkably reduced by monitoringthe occurrence regularity by adopting an ectropis grisescens warren sex pheromone trap and spraying the insecticide after spring tea in time. The method disclosed by the invention does not pollute environment, meets a green prevention and control principle of diseases and insect pests, is easy to operate and good in fast-acting property, and can be popularized and applied in a tea production area.

Description

technical field [0001] The invention belongs to the technical field of tea tree pest control, and in particular relates to a new method for preventing and controlling the tea chinchilla moth by using plant essential oils. Background technique [0002] Ectropisgrisescens Warren, 1894, belongs to Lepidoptera (Lepidoptera), Geometridae (Geometridae), Ennominae (Ennominae), Ectropis (Ectropis), is a serious damage to leaf-eating moths in tea gardens in my country. Sexual pests mainly feed on leaves with larvae. When serious, they can eat tea trees into bare branches, which has a great impact on tea yield, quality and tea tree vigor, especially during summer and autumn tea season. The gray tea-foot moth is mainly distributed in Fujian, Zhejiang, Anhui, Hubei, Hunan, Jiangxi, Guangdong, Henan, Guangxi and Jiangsu provinces, covering almost all tea-producing provinces in my country, which seriously threatens the safe production of tea. How to effectively control this pest Has become...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A01N65/42A01P7/04A01G13/00
CPCA01G13/00A01N65/00A01N65/06A01N65/22A01N65/38A01N65/42Y02A50/30
Inventor 谢枫涂娟金玲莉乐美旺吴月坤
Owner 江西省农业科学院园艺研究所
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