Post Emergence Contact Agricultural Herbicides Hexazinone 25% SL 395.49℃ Boiling Point

Agricultural weed killer post-emergence contact herbicide Hexazinone 25% SL

Toxicity

The original drug was given to rats with acute oral LD501690mg/kg, rabbits with acute percutaneous LD50 > 5278mg/kg, and rats with acute percutaneous LD50 > 2000mg/kg. It has a stimulating effect on rabbit eyes. Its accumulative coefficient K value is more than 5, which belongs to slightly accumulative pesticides. It has no teratogenic, carcinogenic and mutagenic effects on animals. The three generation of reproduction test and neurotoxicity test showed no abnormalities. Two years feeding test, no action dose rats were 200mg/kg. Rainbow trout LC5038mg/L, quail LD50 > 5000mg/kg, duck LD50 > 10000mg/kg, bee LC5060mg/kg.

Chemical property

Pure product is white crystalline solid. M.p.115-117 C, vapor pressure 2.7 65507 The solubility of chloroform is 3880g/kg, methanol 2650g/kg, dimethylformamide 836g/kg, acetone 790g/kg, benzene 940g/kg, toluene 386g/kg, hexane 3g/kg, water 33g/kg. In pH 5~9 aqueous solution, it is stable at room temperature and decomposed by microorganisms in soil.

Purpose

After germination, contact killing herbicides inhibit plant photosynthesis. Its herbicidal spectrum and shrub killing spectrum are wider, and it has strong toxicity and long-lasting effect. It can be used in the tending of evergreen coniferous forests, such as Korean pine, Pinus sylvestris var. mongolica, spruce and Masson pine, weeding and irrigation control before afforestation, maintenance and opening of forest fire prevention channels, and forest and soil improvement.

It can also be used in weeding and irrigation control on both sides of oil depots, airports and roads. It can prevent and control Sargassum, Mosquito Grass, Parsley, Leymus chinensis, Elsholtzia, Reed, Cinnamomum camphora, Kobresia koraiensis, Fern, Clematis, Veronica verticillata, Oatmeal, Polygonum, Barnyardgrass, Chenopodium, etc.

The woody plants that can be controlled include Lonicera japonica, Pearl Sea, Corylus heterophylla, Spiraea lanceolata, Acanthopanax senticosus, Ulmus pumila, Populus davidiana, Betula platyphylla, Mongolian oak, Tilia, Fraxinus mandshurica, Yellow pineapple and Catalpa mandshurica. It can be used to control annual or biennial weeds. The growth of weeds can be controlled in a short time at the dosage of 2-5kg/hm2, and most perennial weeds can be controlled at the dosage of 6-12kg/hm2. Non ionic surfactants can be added when applying this product.