A kind of control method of trefoil in mangrove

Abstract

The invention provides a method for preventing and treating cloverleaf in mangroves, belonging to the technical field of mangrove protection. At the lowest tide level in the mangroves, 10-20 cm above the rhizome of cloverleaf is cut, and then the The rhizome is drenched with acetic acid solution once, and after 3 to 5 days, artificially raised Coleopteran weevil insects are placed on the clover vine; After the dodder successfully parasitized on the clover vine, the rhizome of the clover vine was drenched with acetic acid solution again. By introducing dodder and coleopteran weevil, and dipping roots with acetic acid, the control of clover vine is effectively realized, and the operation is simple and environmentally friendly, and the clover vine is completely eliminated from the root.

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...

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

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