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.
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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