Catfish fish rice farming pesticide use matters

Fish in paddy fields , although the fish can eat some insects, but in order to ensure high and stable yield of rice , but also requires the use of pesticides to control rice pests . Application of pesticides in fish in rice fields , it is necessary to be effective in the control of rice pests and diseases, but also to ensure the safety of fish and reduce the pollution of the water environment . Therefore, you must do the following.

1 , the choice of high efficiency, low toxicity and residue , broad-spectrum pesticides, prohibit the use of highly toxic pesticides on fish species ; aqueous or oil should be more choice , sprayer less or no powder pesticides.

Try different kinds of pesticides used interchangeably, both preventable and resistant to pests and diseases , but also can reduce the pesticide in rice , fish residues .

Common efficiency and low toxicity pesticide residue are: trichlorfon , dimethoate , Bisultap , leafhoppers scattered Jinggangmycin , leaf blight net and so on. Toxaphene , Phenthoate , pyrethrum , rotenone , Bordeaux mixture toxicity, prohibited. Overall, the general toxicity of organophosphorus pesticides is relatively low , may be appropriate to use ; organochlorine pesticide toxicity is relatively high, as little as possible with or without .

2, according to the occurrence of rice pests and timely use of pesticides , the correct calculation of the dosage, dosage and frequency of strictly controlled .

3 , adopt comprehensive prevention and control measures , in addition to the use of chemical pesticides to control , shall promote biological and microbiological pesticides to control , in order to help protect the rice ecosystem environment, protect natural enemies of pests ,plastic sprayer reduce chemical pesticide use and residue caused by pollution. To properly grasp both the normal usage of pesticides and safe concentration for fish , so as to ensure the application of pesticides when the safety of fish .