Method for effectively preventing and treating diaphorina citri

A technology for citrus psyllids and young shoots, which is applied in the field of effective control of citrus psyllids, and can solve the problems of wasting pesticides and difficult control effects

Inactive Publication Date: 2018-02-09
POMOLOGY RES INST GUANGDONG ACADEMY OF AGRI SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] It is relatively feasible to trap and kill citrus psyllids by using young shoots of Rutaceae plants, but since adults of citrus psyllids have wings and can fly, it is difficult to know when to spray pesticides: the time of spraying is early, and adu

Method used

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  • Method for effectively preventing and treating diaphorina citri
  • Method for effectively preventing and treating diaphorina citri

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0038] Time, July 20, 2017, location: in the laboratory of the Institute of Fruit Trees, Guangdong Academy of Agricultural Sciences.

[0039] Trim the top of Jiulixiang at about 30cm to make it sprout young shoots. When the young shoots are about 3cm out, use sprayable self-adhesive to spray evenly on the top of the plant, spray repeatedly 2-3 times, and touch with hands There is a sticky feeling when touching the leaf surface. After spraying glue on the top surface of Jiulixiang, put it into a cage with a length, width, and height of 40*50*60cm, and then release 20 citrus psyllid adults into the cage, and observe the results after 12 hours, 24 hours, and 36 hours.

[0040] According to the statistics, the numbers of citrus psyllids sticking to leaves and branches in 12 hours, 24 hours and 36 hours were 6, 8 and 10 respectively. At 36 hours, it was found that another 5 were attached to the gauze of the cage and could not eat or move. Because the citrus psyllid has phototaxis,...

Embodiment 2

[0043] On August 5, 2017, at Jiulixiang Green Belt next to Guangdong Academy of Agricultural Sciences, Guangyuan Road, Tianhe District, Guangzhou.

[0044] Spray the top of the Jiulixiang green belt with a height of about 1.2 meters and a young shoot of about 3-5 centimeters evenly on the top of the plant with a sprayable self-adhesive, and repeat the spray 3 times until the leaves feel sticky when touched by hands. When spraying, there were many adults on the young shoots. Due to the poor activity of the adult citrus psyllids, they did not move or fly away during spraying, and the sprayed glue directly stuck the citrus psyllids to the leaves or tender tips. After 12 hours, 30 twigs were observed, and the investigation found that there were 3.2 psyllids in each twig on average, see figure 1 . Among them, 3.1 psyllids were stuck and unable to move, and the mortality rate was about 8%. See figure 2 , figure 2 The adults of the medium citrus psyllid are dead and will not fly...

Embodiment 3

[0046] The time is July 20, 2017, and the place is Xinhui, Guangdong.

[0047] Trim the top of the Gurixiang plant with a height of about 50cm in the tea branch citrus orchard to make it sprout young shoots. When the young shoots are about 3cm out, use a spray-type sticker to spray evenly back and forth on the top of the plant, and touch it with your hands. There is a sticky feeling when touching the leaf surface.

[0048] After spraying glue on the top surface of Murata, the adult citrus psyllids that stayed on the top of Murica before spraying and came to lay eggs or feed after spraying were stuck, unable to move or feed. Spray glue and respray every 24 hours.

[0049] After 12 hours of spraying, the sticky citrus psyllids were surveyed and the number of deaths was counted. On average, the number of citrus psyllids on each Jiulixiang was 1.1, and the number of stuck and unable to move was 0.8, and the mortality rate was 10.1%. According to statistics again after 30 hours, ...

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Abstract

The invention discloses a method for effectively preventing and treating diaphorina citri, and belongs to the field of plant protection. According to the method disclosed by the invention, an adhesiveis sprayed on the young shoots of murraya paniculata until the sticky feeling is obtained when the leaf surfaces is touched by a hand and diaphorina citri can be adhered; and the diaphorina citri adults which lay eggs or take food are adhered, cannot move or take food, and finally are dead, so that the effect of preventing and controlling the diaphorina citri is achieved. In the method disclosedby the invention, the rutaceae plant, murraya paniculata, is preferably used as a medium for preventing and treating the diaphorina citri; the murraya paniculata has the advantage of continuously growing young shoots for attracting the diaphorina citri to lay eggs; an element of glue spray is added, so that an effect of preventing and controlling the diaphorina citri is achieved. The method provided by the invention is green and environmentally friendly, and normal growth of plants is not influenced. Compared with an orchard spraying pesticide, the insecticidal effect is more concentrated andthe method is more environmentally friendly. Due to the fact that the processing time of the grown new shoots is not limited by trimming the murraya paniculata, the method can be realized all the yearround in south areas of the Yangtze River.

Description

technical field [0001] The invention belongs to the field of plant protection, and in particular relates to a method for effectively controlling citrus psyllids. Background technique [0002] Citrus huanglongbing is the primary problem in citrus planting, which has caused serious economic losses to fruit farmers and significantly hindered the development of citrus industry in my country and the world. Citrus huanglongbing is mainly transmitted in the field by adults of citrus psyllids. The control of citrus psyllid mainly includes chemical control, biological control and other methods. Due to the extensive use of chemical pesticides, the field soil and water sources are polluted. At present, the country has begun to advocate the "two reduction" measures of weight loss and pesticide reduction in farmland. Therefore, safe and pollution-free control methods such as biological control are particularly important. [0003] The biological control of citrus psyllids mainly include...

Claims

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Application Information

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IPC IPC(8): A01G13/00A01M1/18
CPCA01G13/00A01M1/18
Inventor 张瑞敏吴文黄永敬朱从一曾继吾
Owner POMOLOGY RES INST GUANGDONG ACADEMY OF AGRI SCI
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