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Citrus psylla attractant

A technology of citrus psyllids and attractants, applied in the direction of attracting pests, biocides, animal repellants, etc., can solve the problems of killing or attracting other insects or even beneficial insects, pesticide residues, deformities, etc., and achieve good agriculture Application value, long-lasting effect

Active Publication Date: 2018-09-04
HUAZHONG AGRI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Citrus Huanglongbing can infect a variety of Rutaceae plants, including Citrus, Citrus, Kumquat, and Murata. Infected trees have various symptoms, including leaf chlorosis, branchlet death, fruit drop, deformity, small fruit, and reduced fruit quality. Even lead to the death of fruit trees, there is no complete cure for this disease
[0003] For the control of citrus psyllids, currently mainly rely on chemical insecticides, but chemical insecticides will kill or attract other insects or even beneficial insects while killing or attracting citrus psyllids, and with the increase of chemical insecticides As the application becomes more and more widespread, citrus psyllids will develop resistance to it, leading to a decrease in the control effect and an increase in costs. In addition, long-term use of chemically synthesized insecticides will also lead to pesticide residues, which seriously threaten human health

Method used

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Examples

Experimental program
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Effect test

Embodiment 1

[0013] A citrus psyllid attractant is obtained through the following research: using headspace adsorption-solid phase microextraction to collect volatile substances released from citrus shoots at the tipping stage, and analyze them by gas chromatography-mass spectrometry. Comparative analysis of the retention time of the spectrum and the standard sample, dozens of volatile components were identified, and then these components were tested against common pests in citrus groves one by one, and it was found that more than a dozen chemical compounds that can specifically attract citrus psyllids Components that have no or poor attractant effects on other pests such as rust ticks, fruit flies, leaf moths, and whiteflies.

[0014] In order to improve the attracting ability and prolong the duration of use in the field, we have carried out a large number of creative combination tests on these dozens of ingredients, and finally determined the twelve ingredients of the attractant, and at t...

Embodiment 2

[0025] Carry out field lure test in citrus groves, suck 3ml of attractant No. 4 with a pipette gun, add it to the cotton ball in the lure core cage of the triangular trap, hang it randomly and evenly in the citrus grove, and place it on the 0.5th, 1st, 3rd day after the trap is placed. , 5, 7, and 15 days to check the number of citrus psyllid adults on the sticky board of the trap, and the results are shown in Table 3.

[0026] Table 3 Field lure effect of attractant (head)

[0027] lure time

[0028] The above results show that the attractant has a very obvious attracting effect on adults of citrus psyllids, and the effect lasts for a long time. After 15 days of use in the field, the number of attracted adults of citrus psyllids is still increasing significantly, which may be the same as that of eleven species of psyllids. It is related to the chemical properties (such as volatility) of the ingredients, while other attractants have unstable chemical properties, and ...

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Abstract

The invention discloses a citrus psylla attractant which is prepared from the following components in percentage by weight: 1%-5% of alpha-pinene, 50%-80% of D-limonene, 1%-5% of ocimene, 1%-5% of linalool, 10%-20% of gamma-terpinene, 1%-5% of naphthalene, 1%-5% of n-tetradecane, 1%-5% of linalyl acetate, 1%-5% of methyl salicylate, 1%-5% of lauric acid, 1%-5% of citral, and 1%-5% of acetic acid.The citrus psylla attractant has the advantages of good attracting effect, strong specificity, long lasting time, high efficiency, natural property, environmental protection and the like, and does notcause harm to natural enemies, beneficial insects, human and livestock and crops, and target pests do not produce resistance to the attractant.

Description

technical field [0001] The invention belongs to the field of pest control, and in particular relates to an attractant for citrus psyllids. technical background [0002] Citrus psyllid Diaphorina citri Kuwayama, Hemiptera Hemiptera, Psyllidae Psyllidae, is the most serious citrus pest worldwide, capable of spreading the Gram-negative bacteria CandidatusLiberibacter spp. parasitic in the phloem, causing highly destructive citrus Huanglongbing. Citrus Huanglongbing can infect a variety of Rutaceae plants, including Citrus, Citrus, Kumquat, and Murata. Infected trees have various symptoms, including leaf chlorosis, branchlet death, fruit drop, deformity, small fruit, and reduced fruit quality. It can even lead to the death of fruit trees, and there is currently no cure for the disease. [0003] For the control of citrus psyllids, currently mainly rely on chemical insecticides, but chemical insecticides will kill or attract other insects or even beneficial insects while killing...

Claims

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Application Information

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IPC IPC(8): A01N27/00A01N31/02A01N37/02A01N37/40A01N37/06A01N35/02A01P19/00
CPCA01N27/00A01N31/02A01N35/02A01N37/02A01N37/06A01N37/40
Inventor 张宏宇赵政李运娜王珊珊胡坡
Owner HUAZHONG AGRI UNIV
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