Method for preventing and eliminating water hyacinth and pistia stratiotes at same time

Abstract

The invention discloses a method for preventing and eliminating water hyacinth and pistia stratiotes at the same time. The method comprises the steps of pretreatment, pesticide application and test contrast. The method has the advantages that fomesafen can effectively prevent and treat field broad-leaf weeds and can also prevent and treat the malignant aquatic weeds water hyacinth and pistia stratiotes fast and effectively; toxicity to fishes and aquatic organisms is low, and toxicity to birds and bees is also low. Activities and drinking safety of the aquatic organisms are not influenced, and the purpose of safe, efficient, time-saving and labor-saving prevention and treatment is achieved.

Description

technical field [0001] The invention belongs to the technical field of preventing and controlling aquatic weeds of the family Araceaceae and Araceae, and specifically relates to a method capable of controlling water hyacinth and weed at the same time. Background technique [0002] Hyacinth hyacinth, also known as water hyacinth and water hyacinth, is a perennial herb plant that floats in water or grows in mud. Its reproduction speed is fast, and the number of plants can be doubled within 5 days, and a group of 600,000 plants can be multiplied in 8 months. , 1 inflorescence can produce 300 seeds, and the seeds can survive underwater for 5 to 20 years. This grass has been flooded in 17 provinces, municipalities and autonomous regions in southern my country. It is currently one of the most harmful perennial aquatic weeds in the world. . [0003] Dale, also known as Daping, Dayelian, Furonglian, water floating lotus, fat pig dish, water cabbage, is a perennial herbaceous plant. I...

AI Technical Summary

Problems solved by technology

In the fourth issue of the Journal of Weed Science in 2008, "Screening of herbicides for controlling water hyacinth", Cai Yingjie et al. screened the herbicides for controlling water hyacinth and found that Kewuzong (bipyridinium salts) was quick-acting and died 8 days after spraying 2,4-D sodium salt , Grass leather (40% Hu. Zhongling WP) and 2M4Cl also showed good control effects, and the effect of controlling water hyacinth was between Kewuzong and Feida; butachlor and Bicao The control effect of amine was not obvious, the leaf withering rate was only 9.3% and 27.3% 16 days after the application, and the plant death rate was 0.3% and 11.7% respectively

[0008] There are very few studies on herbicides for controlling weeds. At present, it is only reported in J.Aquat.PlantManage 2004 No. 42 "Carfentrazone-ethyl Pond Dissipation and Efficacy on Floating Plants" that carfentrazone can effectively prevent and control weeds, and it degrades rapidly in water, causing water pollution. Low toxicity to aquatic organisms

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