Method for preventing and removing Achnatherum inebrians-endophytic fungi symbiont by virtue of chemical agent

Abstract

The invention provides a method for preventing and removing an Achnatherum inebrians-endophytic fungi symbiont by virtue of a chemical agent. The method comprises the following steps: (1) carrying out primary preparation and spraying on a herbicide: selecting 41% glyphosate isopropylamine, adding water to dilute, adding soap powder, and spraying the mixture to the stems and leaves of Achnatherum inebrians; (2) preparing and spraying a bactericide: after the herbicide is sprayed, spraying a thiophanate methyl bactericide to the stems and leaves of the Achnatherum inebrians; and (3) carrying out secondary preparation and spraying on the herbicide: after the bactericide is sprayed, spraying the herbicide again, selecting 41% glyphosate isopropylamine, adding water to dilute, adding soap powder, and spraying the mixture to the stems and leaves of Achnatherum inebrians. According to the method, the bactericide is added for cooperative use in the prevention and removal processes of the Achnatherum inebrians for the first time because of the consideration that an endophytic fungi has more beneficial effects to the growth of the host, namely the Achnatherum inebrians. The method has the beneficial effects that the operation is simple, the cost is relatively low, the prevention and treatment effects are relatively good, and a feasible method is provided for the prevention and removal of the Achnatherum; and the method has a relatively high application value.

Description

technical field [0001] The invention belongs to the technical field of prevention and control of poisonous weed disasters in natural grasslands, and in particular relates to a method for controlling Drunken Horseweed-endophytic fungus symbiosis by using a combination of herbicides and fungicides. Background technique [0002] Drunken Horse Grass ( Achnatherum inebrians ) is a perennial gramineous plant of the genus Achnatherum, and it is one of the main poisonous weeds in natural grasslands in northern my country. Drunken horse grass is widely distributed in Gansu, Xinjiang, Inner Mongolia, Qinghai, Tibet, Ningxia, Sichuan, Shaanxi and other provinces and regions. Drunken horse grass has the advantages of cold resistance, disease resistance, and drought tolerance, and domestic animals do not eat it, so it has a greater advantage in the interspecific competition of degraded grassland communities, making it an important species in arid and semi-arid alpine grasslands in my co...

AI Technical Summary

Problems solved by technology

Manual extraction is not only time-consuming and laborious, but also the current labor cost is high, it is difficult to apply in the current social and economic conditions, and the effect of extraction is not obvious

Deep plowing is also a method that was once chosen by some areas. Although this method reduces labor costs, it also increases mechanical costs virtually, which is not conducive to large areas of natural grassland and areas that cannot be reached by machinery; at the same time, this deep Overturning can easily destroy the stability of the local ecosystem and cause soil degradation of some natural grasslands, etc.

Chemical control was once considered to be the most effective method, and regional trials were carried out in some areas, but the role of endophytic fungi inside it did not attract the attention of researchers, and the one-sided use of a large amount of herbicides not only failed to achieve ideal results And it is easy to cause drug residue

At present, a more feasible method has not been found to control this drunken horseweed-endophyte symbiont

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