Reasonable application of trichlorfon

Trichlorfon (C4H8O4Cl3P) an organic phosphorus esters in fish disease control with high efficiency , low toxicity, residual less residue shorter advantages.

In order to reduce and avoid the generation of resistant parasites on trichlorfon improve trichlorfon concentration range in a safe use of effects , you can take the following measures:

( 1 ) Rotation drug prevention and treatment of parasitic fish diseases , not long-term single-use trichlorfon a drug to cut pathogens resistant populations formation.

( 2 ) combination therapy can not only play rid combination pests, increase efficacy , reduce costs , and there is a clear inhibition of the development of resistance and to overcome the effect. Such as : 90 % of the crystal trichlorfon and ferrous sulfate mixture (0.5:0.2) 0.25ppm control carp Sinergasilus concurrent with Shi ; 90% crystal trichlorfon and surface alkali mixture (1:0.6) 0.25ppm can kill three generations worms, ring worm .

( 3 ) In order to enhance efficiency for trichlorfon for trichlorfon efficacy, reduce their parasite resistance , perfume sprayer in addition to strictly symptomatic medication and serious medication, reasonable compatibility synergist is one of the ways to improve the efficacy .

The rational application of trichlorfon

In the process of fish disease control how the rational use of trichlorfon , fishery production is a common concern . Rational use of trichlorfon main attention to the following points:

( 1 ) Use trichlorfon control parasitic fish diseases , pathogens objects shall different pH values ​​and water quality and proper adjustment application rate , pH of 6.5-7 in the water can be slightly increased application rate , pH value of 8 -9 can reduce the dosage .

( 2 ) In order to improve fish disease control effect, reducing resistance , you should rotate the use of drugs .

( 3 ) when administered trichlorfon , not adding an alkaline substance or alkaline washing , iquid sprayer to prevent the formation of toxic substances methoxy acid chloride , livestock and fish to avoid poisoning.

( 4 ) trichlorfon original drug with acidic , sprinkle medicine is best not metal containers to prevent corrosion ; such as metal sprayer after use , must be promptly wash with water.