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A kind of method of biological control leucaena spreading

A technology of leucaena and leucaena beans, applied in botany equipment and methods, plant protection, horticulture, etc., can solve the problems of poor physical and mechanical felling effect, low cost, high cost, etc., and achieve continuous control effect and low cost Low, effective effect

Active Publication Date: 2017-10-27
CHINA THREE GORGES UNIV +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The technical problem to be solved by the present invention is to provide a method for biological control of the spread of Leucaena, which can solve the problem of poor physical and mechanical felling effect and high cost. The cost is low, the effect is obvious, and the control effect can be continuously exerted.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] A method for the proliferation of biological control Leucaena, the method is:

[0024] Make egg release seed packs from 50 Leucaena seeds with Leucaena japonica eggs attached on the surface, and then put the egg release seed packs into a low temperature environment (temperature is 8±1°C) for refrigeration until biological control releases use;

[0025] The preparation method of the egg release seed bag is as follows: 70 adult Leucaena leucaena bean weevils are placed in a breeding box with Leucaena seeds, and the ratio of females to males is 1:1.2, After breeding and laying eggs, gently take out a plurality of Leucaena seeds with Leucaena bean elephant eggs on the surface and put them into a mesh bag with an aperture of 2.5-4 mm to make the egg release seed bag (A pack of 50 seeds is standard).

[0026] Leucaena bean elephant eggs are attached to the surface of multiple Leucaena seeds, and the difference in egg age is not more than 1 day.

[0027] The method of biolo...

Embodiment 2

[0029] A method for the proliferation of biological control Leucaena, the method is:

[0030] 50 Leucaena seeds with Leucaena bean weevil larvae were made into larval release seed packets, and then the larval release seed packets were placed in a low-temperature environment (8±1°C) for refrigeration until they were released for biological control .

[0031] The preparation method of the larva release seed package is as follows: 80 adult Leucaena bean weevils are placed in a breeding box with Leucaena seeds, and the ratio of female to male is 1:1.5, After breeding and laying eggs, firstly, several Leucaena seeds with Leucaena bean elephant eggs attached to the surface were gently taken out and collected with small forceps and transferred to suitable conditions (temperature 18°C, humidity 60%). After hatching, the Leucaena bean weevil larvae drill into the Leucaena seeds, and then a plurality of Leucaena seeds with larval life are packed into a mesh bag with a hole diameter of ...

Embodiment 3

[0035] A method for the proliferation of biological control Leucaena, the method is:

[0036] 50 adults of the first-generation Leucaena chinensis were made into adult release bags, and then the adult release bags were placed in a low-temperature environment (8±1°C) for refrigeration, and used when they were released for biological control.

[0037] The preparation method of the adult release bag is as follows: 80 adult leucaena bean weevils are placed in a breeding box with Leucaena seeds, and the ratio of female to male number of the leucaena bean weevil is 1:1.5. After breeding and laying eggs, firstly take out and collect the Leucaena seeds with Leucaena bean elephant eggs on the surface with small tweezers, and transfer the Leucaena seeds whose egg age difference is within one day according to the time after spawning. Under suitable conditions (temperature at 20°C and humidity at 60%), after eggs hatch, larvae pupate, and emerge into offspring adults, put multiple offspri...

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PUM

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Abstract

The invention provides a method for biologically preventing and controlling leucaena glauca diffusion. The method includes the steps that multiple leucaena glauca seeds with leucaena glauca bean weevil eggs attached to the surfaces are made into an egg release seed bag, and then the egg release seed bag is placed in a low-temperature environment to be refrigerated to be used in the biological prevention and control release process; and / or multiple leucaena glauca seeds carrying leucaena glauca bean weevil larvae are made into a larva release seed bag, and then the larva release seed bag is placed in a low-temperature environment to be refrigerated to be used in the biological prevention and control release process; and / or multiple imagoes of first-filial-generation leucaena glauca bean weevil are made into an imago release bag, and then the imago release bag is placed in a low-temperature environment to be refrigerated to be used in the biological prevention and control release process. According to the method for biologically preventing and controlling leucaena glauca diffusion, the problems that the physical and mechanical felling is poor in effect and high in cost can be solved, cost is low, the acting effect is obvious, and the control effect can be continuously exerted.

Description

technical field [0001] The invention relates to the field of biological control of plant proliferation, in particular to a method for biological control of Leucaena dispersal. Background technique [0002] Leucaena leucaena (Leucaenaleucocephala) is an exotic plant from Central and South America. Because of its strong adaptability, drought resistance, unselective soil, resistance to barren saline and alkali, large fruit, few pests and diseases, and extremely fast growth, once it leaves the original place, its Plants can inhibit the growth of other plants in the biological environment by releasing allelochemicals and excessively absorbing nutrients, and even form a single-optimal community, forming a pure forest of Leucaena, causing serious soil erosion, and its unique seed bank mechanism intensifies the growth of Leucaena. Spread speed, deteriorating local ecosystem. [0003] At present, most of the control methods for Leucaena are physical and mechanical felling, but due t...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A01G13/00A01M99/00
CPCA01G13/00A01M99/00
Inventor 许文年杜祥运夏振尧刘大翔姚小月
Owner CHINA THREE GORGES UNIV
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