After copper sulfate is dissolved in water, the free copper ions can disrupt the activity of the oxidoreductase system in the insect body, hinder its metabolism or bind its proteins to form protein salts. Currently, it has become a commonly used insecticide and algal killer for fishermen. But if used improperly, not only will it not have the effect of killing insects and treating diseases, but it will also affect the growth of fish and even cause poisoning and death.
The editor suggests that everyone choose high content, preferably concentrated, which is usually used in large amounts and easy to carry. Ultra concentrated organic acids, ultra concentrated formula, five times concentrated; Detoxification and detoxification, regulating and purifying water; Suitable for handling scenarios such as pesticide residues, algal toxin poisoning, heavy metal exceeding standards, and abnormal water quality: alleviate poisoning and stress reactions of breeding animals, accelerate toxin discharge from the body, improve water transparency, and stabilize water pH value
Therefore, the following precautions must be taken when using copper sulfate:
(1) The toxicity of copper sulfate is directly proportional to the water temperature, so it should generally be used on sunny mornings with better results, and the dosage should be relatively reduced according to the water temperature;
(2) The amount of copper sulfate used is directly proportional to the fertility, organic and suspended matter content, salinity, and pH value of the water body. Therefore, the appropriate amount should be selected based on the specific situation of the pond during use;
(3) When the water is alkaline, use copper sulfate with caution to avoid the formation of copper oxide poisoning fish;
(4) The safe concentration range of copper sulfate for aquatic animals such as fish is small, and its toxicity is high (especially for fish fry). Therefore, the dosage should be accurately calculated when using it;
(5) Do not use metal utensils or water above 60 ℃ during dissolution to prevent loss of efficacy. After dosing, oxygen should be fully increased to prevent dead algae from consuming oxygen and affecting water quality, leading to flooding;
(6) Copper sulfate has certain toxic side effects (such as hematopoietic function, feeding and growth) and residual accumulation effects, so it cannot be used frequently;
(7) Avoid using copper sulfate when treating small melon insect disease and powdery mildew.
Copper sulfate poisoning mainly causes a decrease in red blood cells and white blood cells in fish, liver and kidney necrosis, and damage to hematopoietic tissue. Once copper sulfate poisoning occurs, new water should be added in a timely manner, and water quality protection antidotes should be sprinkled throughout the pool.
