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Diaphorina citri kuwayama green prevention and control method

A citrus psyllid, green technology, applied in the field of green control of citrus psyllid, achieves high control efficiency, less resistance, and increased crop yield

Inactive Publication Date: 2020-06-26
HUAZHONG AGRI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the "push-pull" control strategy of citrus psyllid has no specific research and practical application reports.

Method used

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  • Diaphorina citri kuwayama green prevention and control method
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  • Diaphorina citri kuwayama green prevention and control method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] Example 1 Screening of citrus psyllid attractants and repellent active substances

[0025] Herbivorous insects mainly recognize host plant and non-host plant volatiles (Volatile organic compounds, VOCs) through the sense of smell, thereby promoting their growth and reproduction (Du Jiawei 2001). As more and more components of host and non-host plant volatiles have been identified, people began to apply artificially synthesized effective components to the development of attractants and repellents for pests (Xiang Yuyong et al. 2015) . In this study, the volatile components of the citrus psyllid host plant Murata and the non-host plant Lantana leaves were determined, and the same substances in the leaves of different treatments were tested on the concentration gradient behavior of the indoor Y-type olfactometer, and the citrus psyllids were screened out. Active substances with attracting or repelling effect.

[0026] 1 Materials and methods

[0027] 1.1 Test material ...

Embodiment 2

[0081] Example 2 The screening of attracting and repelling active substance field net room application conditions

[0082]Plant-derived attractant and repellent active substances have the advantages of low dosage, environmental friendliness, less pollution, less resistance, and simple use in the field, which can achieve sustainable control of target pests. Therefore, it is of great significance to apply these natural substances to pest control, insect-resistant breeding and biological control. In this study, the screened 2 kinds of repellent and 3 kinds of attractant active substances were screened for the application conditions in the field net room, specifically the effects of repellent active substances on the host selection and oviposition of citrus psyllids, and the effects of attractant active substances on citrus psyllids. The luring effect of lice and the most suitable hanging position, height and distance of field traps.

[0083] 1 Material method

[0084] 1.1 Test ...

Embodiment 3

[0156] Example 3 "Push-Pull" Technology Research on Controlling Citrus Psyllid

[0157] The pest "push-pull" strategy maximizes the efficiency of pest behavior manipulation by integrating the cumulative and synergistic effects of "push" and "pull" on pests. By orchestrating the distribution of pests, the efficiency of population reduction can also be increased. Pest control "push-pull" techniques are generally non-toxic and are effective tools in integrated pest management (IPM) programs to reduce pesticide use (Cook et al 2007). This study minimizes the damage of citrus psyllids by using the attractant and repellent active substances screened from host and non-host plants in a "push-pull" technique for controlling citrus psyllids.

[0158] 1 Materials and methods

[0159] 1.1 Test material

[0160] 1.1.1 Test plants

[0161] Jiulixiang (planted in April 2018, about 40cm-60cm in height), navel orange (about 40cm-60cm in height).

[0162] 1.1.2 Test materials

[0163] Tri...

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Abstract

The invention discloses a diaphorina citri kuwayama green prevention and control method, and belongs to the field of crop pest control. The method comprises the following steps of planting a host plant of the diaphorina citri kuwayama around a citrus fruit tree as a trap, spraying a repellent on the citrus fruit tree, and arranging a trap containing the attractant on the host plant, so that the diaphorina citri kuwayama is driven away from the citrus fruit tree and lured to the host plant for elimination. Compared with the prior art, the method has the advantages of being high in prevention and treatment efficiency, green, environmentally friendly, not prone to generating resistance and the like.

Description

technical field [0001] The invention belongs to the field of crop pest control, and in particular relates to a green control method for citrus psyllids. Background technique [0002] The citrus psyllid (Diaphorina citri Kuwayama) is one of the most serious citrus pests in the world. Adults and nymphs of citrus psyllids suck the sap of young shoots of citrus, causing the young shoots to shrink and dry in severe cases. The secretions discharged by the nymphs can also cause soot disease and affect photosynthesis. In particular, the spread of citrus destructive and quarantine disease citrus Huanglongbing (Candidatus Liberibacter asiaticus, CLas), seriously threatens the steady development of citrus industry. [0003] The planting area and output of citrus in my country rank first in the world, and there is a trend of increasing year by year. my country's citrus industry is seriously threatened by citrus huanglongbing, and the infection of citrus huanglongbing has occurred in m...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01G13/00A01M1/02A01N27/00A01P17/00A01P7/04
CPCA01G13/00A01M1/02A01N27/00
Inventor 张宏宇胡坡王珊珊
Owner HUAZHONG AGRI UNIV
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