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Method for preventing derris trifoliata in mangrove forest

A technology of clover and mangroves, applied in horticultural methods, botanical equipment and methods, horticulture, etc., can solve the problems of difficult to remove seeds, difficult to achieve effective control, easy to recur, and achieve good parasitic ability, easy to collect and The effect of cultivation, method is simple and easy to implement

Active Publication Date: 2020-12-25
GUANGXI MANGROVE RES CENT
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In recent years, due to the rapid reproduction of Demeritus clover in some areas, the renewal and development of mangrove communities has been seriously restricted, resulting in a large number of mangroves withered and dead due to the inability to carry out normal photosynthesis, which has seriously affected the succession speed of mangrove communities, resulting in The mangrove wetland ecosystem is gradually degrading, and the mangrove ecosystem is facing serious threats. Deria clover has become a "plant killer" that endangers mangrove wetland plants
Trefoil is often used as a raw material for pesticide production, so the traditional methods of "treating weeds with medicine" and "treating weeds with insects" are difficult to achieve effective control
[0004] The Chinese invention patent with the publication number CN105248201A discloses a control method for the invasive plant Mikania micrantha in mangroves. It uses field dodder to attach to soybean seedlings, and the seedlings will firmly wrap around the stems of Mikania micrantha and penetrate deep into the skin of Mikania micrantha to absorb its water. Mikania micrantha will eventually wither and die, and then successfully control Mikania micrantha; but Mikania micrantha cannot take root in tidal flats, so only by absorbing the nutrients and water of its branches and leaves can completely remove Mikania micrantha, so as to achieve the purpose of control
[0005] At present, there is no research report on the prevention and control of deer vine by dodder. This is because deer vine can take root and grow in tidal flats, the degree of damage and the scope are larger, and manual cleaning is very difficult; while the manual cleaning of dodder is relatively simple.
However, due to the growth characteristics of deer vine, it is difficult to achieve effective control by simply using field dodder, and it is difficult to completely remove the root system and fallen seeds, and it is easy to relapse

Method used

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  • Method for preventing derris trifoliata in mangrove forest
  • Method for preventing derris trifoliata in mangrove forest

Examples

Experimental program
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Effect test

Embodiment 1

[0027] Artificial breeding of Coleoptera weevils:

[0028] The Coleoptera Weevilidae insects come from Beihai, Guangxi. The female adults have a body length of 3-4mm, and the male adults have a body length of 2-3mm. The elytra and thorax are brown and densely covered with white hairs (see the appendix for details). figure 1 ), collecting deeridea seeds and Coleoptera weevils outdoors, feeding deeridea seeds and / or flower buds to the weevils of the order coleoptera, and carrying out artificial reproduction of larvae, and raising the cultivated larvae to adults Ready to release.

Embodiment 2

[0030] A control method of trefoil in mangroves, comprising the steps of:

[0031] (1) When the lowest tide level in the whole day, cut off at 10cm place the rhizome of Deryna clover in the mangrove, and pour 50mL of acetic acid solution with a volume concentration of 6% once on the base of each rhizome; Place artificially raised Coleoptera Weevils insects on the deer vine, and the placing density is 10 / strain;

[0032] (2) collection of dodder stem section: choose the field dodder with host stem section of 8cm, obtain the dodder stem section for subsequent use;

[0033] (3) From April to October every year, put the dodder stem section on the canopy position on the water surface of Deer vine, after the dodder successfully parasitizes on the deer vine, cut it off at 10 cm from the rhizome of the deer vine, It is 10% acetic acid solution 20mL that the volume concentration of every rhizome base drenches once; The placement mode of placing the dodder stem section is: select the m...

Embodiment 3

[0035] A control method of trefoil in mangroves, comprising the steps of:

[0036] (1) At the lowest tide level in the whole day, cut at the height of 20cm at the rhizome of the cloverleaf, and pour 20mL of acetic acid solution with a volume concentration of 10% at the base of each rhizome; Place artificially raised Coleoptera Weevils insects on the top, and the placing density is 20 / strain;

[0037] (2) collection of dodder stem section: choose the 25cm Cuscuta chinensis stem tip section to obtain the dodder stem section for subsequent use;

[0038] (3) From April to October every year, put the dodder stem section on the canopy position on the water surface of Deer vine, after the dodder successfully parasitizes on the deer vine, cut it off at 10 cm from the rhizome of the deer vine, It is 50mL of 6% acetic acid solution that the volume concentration is drizzled once at every rhizome base; The dodder with the host stem section is placed at the canopy of the deer vine; or th...

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PUM

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Abstract

The invention provides a method for preventing derris trifoliata in a mangrove forest, and belongs to the technical field of mangrove forest protection. The parts being 10-20 cm above rhizomes of thederris trifoliata are cut off at the lowest tide level all day long in the mangrove forest, then an acetic acid solution is sprayed to the rhizomes of the derris trifoliata once, and artificially-bredcoleopteran weevils insects are placed on the derris trifoliata; and semen cuscutae stems are placed at the canopy positions, on the water surface, of the derris trifoliata, and after semen cuscutaeis successfully parasitized on the derris trifoliata, an acetic acid solution is sprayed to the rhizomes of the derris trifoliata again. Semen cuscutae and coleopteran weevils insects are introduced and cooperate with acetic acid root spraying, prevention of the derris trifoliata is effectively achieved, operation is easy, environment friendliness is achieved, and the derris trifoliata is thoroughly eradicated from the source.

Description

technical field [0001] The invention belongs to the technical field of mangrove protection, and in particular relates to a method for preventing and treating demeria clover in mangroves. Background technique [0002] Derris trifoliate (Derris trifoliate) is a perennial vine belonging to the genus Derris of the leguminous family. It mostly grows in coasts, mangroves on beaches, and river banks entering the sea. It is native to tropical and subtropical regions of Asia, and is also distributed in various islands in Indonesia and the Philippine Islands. , Malay Peninsula, mainly distributed in Taiwan, Hong Kong, Fujian, Guangdong, Guangxi, Hainan and other places in China. In recent years, due to the rapid reproduction of Demeritus clover in some areas, the renewal and development of mangrove communities has been seriously restricted, resulting in a large number of mangroves withered and dead due to the inability to carry out normal photosynthesis, which has seriously affected t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01G13/00A01G22/00A01K67/033A01G7/06
CPCA01G13/00A01G22/00A01K67/033A01G7/06
Inventor 刘文爱范航清李丽凤薛云红陶艳成邓秋香
Owner GUANGXI MANGROVE RES CENT
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