Marigold odor repellent for trapping and killing tea lesser leafhopper and trapping and killing method

A technology of tea small green leafhopper and repellent, which is applied in the directions of animal repellent, botanical equipment and method, biocide, etc., can solve problems such as contamination of tea leaves, and achieve the effect of reducing chemical control

Active Publication Date: 2021-07-23
CHINA JILIANG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Application of chemical pesticides with repelling effect can drive away leafhoppers, but pollutes tea leaves

Method used

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  • Marigold odor repellent for trapping and killing tea lesser leafhopper and trapping and killing method
  • Marigold odor repellent for trapping and killing tea lesser leafhopper and trapping and killing method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] Example 1 The marigold odor repellent effect of 4-component combination is significantly better than other combinations

[0019] 1 test material

[0020] Control (CK): Bud green insect trap, 30cm long and 30cm wide. Adhesive on both sides, covered with release paper. When trapping and killing leafhoppers in the field, tear off the anti-adhesive paper and hang it on the surface of the tea tree with the lower edge close to the tea buds.

[0021] Leafhopper repellent (marigold odor repellant): the content of α-pinene, naphthalene, γ-molerene and (+)-4-carene is 1mg / mL, 3mg / mL, 10mg / mL respectively mL and 50mg / mL solution;

[0022] Leafhopper repellant 1: prepared by 1 mg / mL, 3 mg / mL, 10 mg / mL and 5 mg / mL solutions containing α-pinene, naphthalene, γ-molerene and (+)-4-carene respectively composition;

[0023] Leafhopper repellent 2: composed of 1 mg / mL, 3 mg / mL and 10 mg / mL solutions of α-pinene, naphthalene and γ-mollerene, respectively;

[0024] Leafhopper repellen...

Embodiment 2

[0050] Embodiment 2 The effect of the marigold odor repellent is significantly better than other single-component repellents

[0051] 1 Materials and methods

[0052] From 8:00 to 10:00 on September 20, 2020, in the tea area of ​​Songyang County, Zhejiang Province, tea leafhoppers seriously occurred. Choose a tea garden with severe cicada damage, and set 5 treatments, each treatment is 2 mu of tea garden, 5 treatments are randomly set, and the distance between treatments is 20m.

[0053] Control (CK) test area: with an area of ​​2 mu, 30 bud green insect-attracting boards are placed, the distance between the boards is 7m × 8m, and the bottom edge of each board is slightly higher than the tea canopy surface. A n-hexane core was tied to the tea branch in the tea bush facing the insect trap, and the loading volume of n-hexane was 200 μL.

[0054] α-pinene repellent test area: an area of ​​2 mu, the parameters such as the number of bud color traps and the spacing between the pla...

Embodiment 3

[0064] Example 3 Composition of marigold odor repellent and bud green sticky board to avoid - the field control effect of booby traps

[0065] 1 Materials and methods

[0066] On September 26, 2020, in the tea area of ​​Songyang County, Zhejiang Province, during the blooming period of tea leafhoppers, a tea garden with serious leafhopper damage was selected and divided into 3 areas: one is the test area for marigold odor repellent, and the other is One is the test area for marigold odor repellent slow-release agent, and the other is the CK area. Before 9:00, complete the leafhopper population survey in each area. That is, five points were sampled in each area, and the number of leafhoppers on 100 tea shoots were randomly investigated at each point. On September 28, September 30, October 6, and October 8, there were 4 investigations by the same law.

[0067] Marigold odor repellent prevention and control area: an area of ​​2 mu, place 30 bud green insect-attracting boards, t...

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Abstract

The invention provides a marigold odor repellent for trapping and killing tea lesser leafhopper and a trapping and killing method. Alpha-pinene, naphthalene, gamma-molemene and (+)-4-carene are combined in proportion to prepare the marigold odor repellent. Tea lesser leafhopper is an important pest for tea trees and tea tree shoots for making high-grade tea leaves and likes to inhabit in tea bushes for most of the time. In the leafhopper peak period, the repellent is loaded on a rubber head to prepare a repellent core, the repellent core is attached to the tea branch in the tea bush, and the repellent is slowly released to repel leafhoppers so that the leafhoppers can escape from the tea bush; meanwhile, a square bud green insect trapping sticky plate is placed on the tea tree canopy face right facing the repellent core, and the lower edge is close to the tea tree bud tip; a large number of leafhoppers escaping from the tea bush are trapped and killed on the bud green plate. After each lure is loaded with the repellent, 20-40 microliters of liquid paraffin is loaded as a slow-release agent, the half-life period of the repellent effect can be prolonged for many days, and the leafhopper repellent can be used for harmless prevention and treatment of tea lesser leafhoppers, and application of chemical pesticides is reduced and avoided.

Description

technical field [0001] The invention belongs to the field of plant protection, and relates to the use of insect pheromones to avoid and trap important pests such as tea green leafhoppers. During May-July and September-November when tea leafhoppers are in full bloom, fix repellent cores on the tea branches in the tea bushes, and hang bud green insect-attracting sticky boards on the surface of the tea canopy just above the repellent cores. The bottom edge is slightly higher than the tea canopy surface. The repellent emitted by the repellent core will repel the tea leafhoppers in the tea bushes, and the tea leafhoppers will tend to the bud green insect traps and be trapped and killed, thereby greatly reducing the tea leafhopper population in the tea garden, reducing chemical control and protecting Tea garden environment. Background technique [0002] The tea leafhopper Empoasca flavescens F. is the most serious pest in my country's tea areas. It uses needles to suck the buds ...

Claims

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Application Information

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IPC IPC(8): A01N27/00A01P17/00A01M1/14A01M1/02A01M29/12
CPCA01N27/00A01M1/145A01M29/12A01M2200/012
Inventor 韩宝瑜韩善捷王梦馨潘铖
Owner CHINA JILIANG UNIV
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