What are the precautions for using copper hydroxide pesticide?
Copper hydroxide is slightly toxic and can be used as an analytical reagent as well as in pesticides. What are the effects of copper hydroxide pesticide? What are its precautions?
1. The effects of copper hydroxide pesticide
The trade names of copper hydroxide include Kocide, Guan Jun Tong, Feng Hu An, Rui Pu, Zhen Xi Jun Ke and others. Common formulations include 77% copper hydroxide wettable powder, 57.6% copper hydroxide dry granule, 37.5% copper hydroxide suspension concentrate and 25% copper hydroxide suspension concentrate.
The technical material is a blue powder and is a protective broad-spectrum fungicide. After preparation, the spray solution is stable and has good spreading properties. After spraying, it adheres strongly and resists rain wash-off, steadily and slowly releasing copper ions. It generally causes little phytotoxicity to crops and is relatively safe for humans and livestock. It is suitable for the main fungal and bacterial diseases of crops such as melons, fruits and vegetables.
It mainly controls cucumber bacterial angular leaf spot, cucumber damping-off, leaf blight, marginal blight, cucumber Fusarium wilt, tomato early blight, late blight, canker, soft rot, target spot, pepper white star disease, bacterial spot of pepper, bacterial wilt, and bacterial diseases of cabbage, watermelon and others. For copper-sensitive crops such as peach, plum, pear, apple, persimmon, Chinese cabbage, soybean and wheat, tests should be carried out first and use should be cautious.
2. Precautions for copper hydroxide pesticide
Use it alone, and do not mix it with strongly acidic or strongly alkaline pesticides and fertilizers. If it needs to be mixed with other pesticides, carry out a second dilution. Use it cautiously under high temperature and high humidity and on copper-sensitive crops such as peach, plum, pear and apple, and do not use it during the flowering period or young fruit period. It is best applied in the early stage of crop disease, for 2-3 consecutive times, to give full play to its characteristics as a protective agent. It is toxic to fish and aquatic organisms, so avoid contaminating water sources with the pesticide. When applying the pesticide, wear protective equipment and avoid direct contact with the pesticide.
The above is a brief introduction to copper hydroxide pesticide. I hope it is of some reference value to you.