1, you can use the fast exterminator plus pyrazosulfuron spray prevention. Quickly kill the above ground part of the water chestnut plant, and Pyrazosulfuron has a better sealing effect on the water chestnut seedling that may sprout again later.

2, wild water chestnut before the bud: Turf Ning 44 0.75 grams / square meter or Turf Ning 45 0.01 grams / square meter + Turf Ning 9 0.0375 ml / square meter, 75 ml / square meter of water, universal spray coarse fog, spraying and watering a number of times to be watered thoroughly, keep the soil surface moist for 7 days. Wild water chestnut growth period, Turf Ning 7 0.9 ml / m2 + Turf Ning 71 0.1 g / m2, to water 45 ml / m2 spray.

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