Appropriate dosage of several aquatic products

In the prevention and treatment of diseases in aquaculture production, the dosage should not be too large, otherwise it may cause phytotoxicity to the breeding objects. In particular, freshwater white carp, squid and other fish are sensitive to some drugs, and improper use can easily cause death.

First, freshwater white

Freshwater white peony is most sensitive to organophosphorus pesticides. Therefore, it is forbidden to use drugs such as trichlorfon and dichlorvos.

Second, the squid

Squid is more sensitive to drugs such as trichlorfon and copper chloride. If the concentration of trichlorfon is above 0.2 ml/L and the concentration of copper chloride is above 0.7 mg/L, it can cause death from salmon poisoning. Therefore, it is necessary to grasp the appropriate dosage.

Third, California 鲈

California cockroaches are more sensitive to crystal trichlorfon. Therefore, when crystal trichlorfon is used to control California cockroaches, the concentration should be strictly controlled below 0.3 mg/L.

Fourth, blackbird

Black mullet is very sensitive to ferrous sulfate and should be used with caution or not.

Five, rainbow trout

Rainbow trout is more sensitive to trichlorfon and potassium permanganate. When the water temperature is between 11.5 ° C and 13.5 ° C, the safe concentration of trichlorfon against rainbow trout is 0.049 mg / liter, especially the sensitivity of juvenile rainbow trout.

Six, river crab

The crab is sensitive to crystal trichlorfon and copper sulfate. When the whole pool is splashed, the concentration of trichlorfon should be controlled below 0.3 mg/L, and the concentration of copper sulfate should be controlled below 0.7 mg/L.

Seven, green shrimp

Shrimp is sensitive to pyrethroids, crystal trichlorfon and copper sulfate, so it should be banned or used with caution. It is strictly forbidden to use "enemy kill" in production. When the whole pool is splashed, the concentration of trichlorfon is controlled below 0.013 mg/L, and the concentration of copper sulfate is below 0.3 mg/L.

Eight, Macrobrachium rosenbergii

Macrobrachium rosenbergii is particularly sensitive to trichlorfon and is strictly prohibited. The whole pool should be sprayed with drugs. The concentration of bleaching powder should be controlled below 1 mg/L, copper sulfate 0.3 mg/L or less, and quicklime 25 mg/L or less.
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