Carbendazim has the advantages of wide spectrum of sterilization, obvious efficacy and long potency, and is an ideal fungicide . However, in the production practice, some mushroom farmers have some problems due to lack of medication knowledge, so pay attention to the following points when using:
First, the carbendazim sold in the market is mostly 50% wettable powder and 40% plastic suspension. No matter which type of dosage form should be used, it is necessary to pay attention to the expiration date of the product, and the production date is the best within one year.
Second, carbendazim has a poor control effect on Mucor and Rhizopus. When using carbendazim, the pH value of the culture material should be appropriately increased to inhibit the growth of Mucor and Rhizopus. Due to the high temperature resistance of carbendazim, it is best to ferment the culture material and sterilize it at high temperature to kill the mold. Tremella fuciformis, fungus, and Hericium erinaceus are particularly sensitive to carbendazim and should be avoided.
Third, with carbendazim mixture, the concentration of the liquid should be strictly controlled. Generally, the powder with a content of 50% can kill and inhibit the growth of the bacteria by 0.1% of the dry weight of the material; if the dosage is increased, not only the cost Increase, it will also affect mycelial growth, leading to fruiting body pollution. When mixing, first dissolve the agent into a sufficient amount of water and mix well. After mixing the ingredients, mix well to avoid spot contamination.
4. Carbendazim is easily decomposed and decomposed in an alkaline environment. Therefore, lime cannot be used at the same time, and carbendazim and lime mixture can not be placed for a long time. Mushroom farmers should also pay attention: carbendazim is easy to make bacteria resistant, so long-term use should be avoided, and other fungicides can be used alternately.
More pesticide knowledge , please pay attention to China Pesticide Network
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