Identification and use of insecticidal fish drugs
Identification and use of insecticidal fish drugs
⑴ copper sulfate and ferrous sulfate mixture. The two drugs are transparent blue and green crystals respectively, so they are also called blue alum and green alum, which have strong convergence and insecticidal effect, and have toxic effect on Chinese fish flea, rotifer, oblique tube worm, tongue cup worm and so on. 0.7 grams per cubic meter of water, including 0.5 grams of copper sulfate and 0.2 grams of ferrous sulfate.
⑵ crystal trichlorfon. The pure product is a white solid, containing 90% of the active ingredient, which is soluble in aquatic dichlorvos and can poison and kill a variety of parasites. 0.7 grams per cubic meter of water, should be applied in the morning, but should not be used in combination with alkaline drugs such as lime, so as not to poison fish.
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