Q: The netizen zhongzheng sent an e-mail: Will the reeds in the fish pond use what kind of phytotoxic herbicides to control and prevent damage to the fish? Answer: fluazifen (fine stable kill), high-efficiency flupiramide (high-efficiency herb), glyphosate and other drugs are suitable for preventing reeds. Among them, fluazifoplin, high-efficiency flupirtine is a selective herbicide and is mainly suitable for control of grassy weeds and is ineffective against broad-leaved weeds. In addition, the two drugs are very toxic to fish, semi-lethal concentration (96 hours) of fluazifop to rainbow trout is 1.07 mg/L, and the semi-lethal concentration of flupirizone against rainbow trout (96 hours) 0.7 mg/L. However, fluazifoplin and high-efficiency flupirtine have high activity on grass weeds, with 9-12 grams of pure medicine and 3-5 grams of pure medicine per acre, respectively. (It is appropriate to control perennial weeds such as reeds. Increase the amount) If you can direct the spray, spray as much as possible on the leaves, do not let a lot of drugs fall into the water, the safety of the fish is also better. Glyphosate is an inactivated herbicide and has a good killing effect on reed and other grass weeds as well as most broad-leaved weeds and sedges. The drug is less toxic to fish and has a median lethal concentration (96 h) of 86 mg/L for rainbow trout. Moreover, the drug quickly loses its activity when combined with metal ions in the soil, and is therefore commonly used in aquaculture waters to prevent impurities. grass. This medicine is used to control reeds. It should be applied in the 6-7 leaf stage where the reeds begin to thrive. 100-150 grams of pure medicine is used per mu, and about 41% of the amount of glyphosate 250-375 ml per mu is used. , add 45-60 kg of fine spray of water. Reedgrass is suitable for increasing the dosage of the herb when it is older and grows densely. When spraying near aquaculture waters, try to avoid falling liquids into the water. Application of water to the leeches is more conducive to improving the safety of the fish. Goji Juice Concentrate,Organic Goji Juice Concentrate,Lycium Barbarum Juice Concentrate,Concentrate Juice Chinese Wolfberry Ningxia Red Power Goji Co., Ltd. , https://www.redpowergoji.com
How to Prevent Reeds in Fish Ponds
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