Method for preventing and treating mikania micrantha by mixing fluroxypyr and ametryn

Abstract

The invention provides a method for preventing and treating mikania micrantha by mixing fluroxypyr and ametryn, comprising the specific steps as follows: (1) proportion: the proportion by weight of the fluroxypyr to ametrex is 1: 7.5-15; (2) application: respectively dissolving the fluroxypyr and the ametrex, then mixing the two and adding water for spraying in the period from the sprout to the blossom of the mikania micrantha; (3) dosage: 6-8 g/667m2 of fluroxypyr, 60-80 g/667m<2> of ametryn, and 45-75 L of water. The method has remarkable synergistic effect, improves the prevention and treatment effect on the mikania micrantha by 5.25-14.25%, and greatly reduces dosage and lowers the prevention and treatment cost. The application for once can control the occurrence and harm of the mikania micrantha in 12-18 months, decrease the application frequency of the herbicide and realize lasting control. The method can be applied during the period from the seedling to the bud of the mikania micrantha, so that the limitation that the other herbicides only can be applied before the sprout or during the growth of the mikania micrantha is solved. The herbicide formula not only can prevent and treat the mikania micrantha during the growth, but also has better function for the root-sprouted and seed-sprouted mikania micrantha potential population, and realizes the dual purposes of stem leaf treatment and soil sealing treatment.

Description

technical field [0001] The invention relates to the technical field of mikania micrantha herbicide for preventing and controlling malignant weeds, in particular to a method for preventing and controlling mikania micrantha by mixing fluroxypyr and ametryn. Background technique [0002] Mikania micrantha H.B.K is a perennial vine and one of the 100 most serious pests in the world. Has been widely invaded and spread to tropical and subtropical countries and regions, becoming a "green killer". This invasive species spread and broke out in Yunnan, Guangdong, Shenzhen, Hainan, Hong Kong and Taiwan in recent years, causing huge agricultural economic losses, leading to serious loss of biodiversity and deterioration of ecosystems. At present, the herbicides used to prevent and control Mikania micrantha generally have the disadvantages of poor control effect, low safety and selectivity, especially within 3-6 months after the application of chemical herbicides, Mikania micrantha can r...

AI Technical Summary

Problems solved by technology

However, when two or more herbicides are used in combination, many herbicides are physic

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