1.优于敌百虫的灭虫精 灭虫精是用植物提炼合成的触杀灭虫剂。其优点是:①效应快,效力强,比等量的敌百虫效力大几倍。在一般情况下可一次性灭除寄生于鱼体表或水中的中华鳋、锚头鳋、鱼虱、松藻虫、蠕虫等害虫,对顽固的孢子虫病亦有一定的疗效。②用量低,使用次数少,从而大大减少鱼药开支,降低养鱼成本,还避免了用药过多对水体的污染。③与敌百虫交换使用,可克服长期使用晶体敌百虫使鱼 1. better than trichlorfon pest control pest control is the synthesis of plant extracts to kill insecticides. Its advantages are: ① fast, effective, stronger than the same amount of trichlorfon several times. Under normal circumstances can be a one-time off parasites in the fish table or water, Chuanxiong, anchovy 鱼, louse, pineal, worms and other pests, refractory sporozoosis have a certain effect. ② low dosage, the use of a small number of times, thereby greatly reducing the cost of fish medicine, reduce fish farming costs, but also to avoid excessive use of water pollution. ③ interchangeable with trichlorfon to overcome the long-term use of trichlorfon crystal fish