At present, pesticides have been registered in more than 1,500 countries in the world, of which more than 300 are commonly used. Mineral-derived pesticides originate from inorganic compounds of natural mineral raw materials and petroleum pesticides, collectively referred to as mineral-derived pesticides. It includes arsenides, sulfides, copper compounds, phosphides and fluorides, as well as petroleum emulsions. It can be used as an insecticide , rodenticide, fungicide and herbicide, and has a good development prospect.
Mineral source pesticides have a long history and are the main varieties in the early stage of pesticide development. With the development of chemical synthetic pesticides , the amount of pesticides used in the construction has gradually decreased. Some of them, such as lead arsenate and calcium arsenate, have stopped production. At present, more varieties are used: sulfur suspending agent, lime sulfur mixture (liquid or solid), steel (copper oxychloride), copper hydroxide, Bordeaux, zinc phosphide, aluminum phosphide and petroleum emulsion.
The use of mineral-derived pesticides to control the concentration of harmful organisms is close to the concentration of crops that may cause phytotoxicity, and if it is slightly inadvertent, it may cause phytotoxicity. The quality of spray and climatic conditions have a great impact on the efficacy and phytotoxicity. Pesticide manufacturers recommend that they should pay more attention when using them.
Diamond Oil Drill Bit,Fixed Cutter PDC Hole Opener ,12 Inch Hole Opener,12 Inch PDC Hole Opener
CANGZHOU GREAT DRILL BITS CO., LTD , http://www.pdcbits.nl