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First, strictly control the concentration of drug concentration The amount of drug solution must be appropriate, if the super concentration, over dosage, although it can kill the disease, but easy to produce phytotoxicity, prone to human and animal poisoning; if the drug concentration is low, …

Turbot is a cold-water marine butterfly species produced in Europe. It was introduced by the Yellow Sea Fisheries Research Institute of the Chinese Academy of Sciences in 1992. It was successfully mass-produced in 1999. It is expected that the turbot will become the coastal Shandong and even t…

The turbid fluid disease is an extremely common disease in the large cherry producing areas. At present, the cause of the disease is unknown and it is not easy to completely eradicate it. The plasticity of the plants results in weakening of the tree vigor, which affects the growth of the tree …

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