Prevention and treatment method for lotus rhizome rot disease

Abstract

The invention discloses a prevention and treatment method for a lotus rhizome rot disease. The prevention and treatment method comprises the following concrete steps: step 1, before lotus rhizome seeds are sowed, subjecting the lotus rhizome seeds to soaking in a selected 400-fold carbendazim diluent with a concentration of 50%; step 2, after the soaked lotus rhizome seeds are sowed, uniformly spreading quick lime with a standard of 50 kg / mu into a lotus rhizome field, after the quick lime is spread, watering the lotus rhizome, irrigating shallow water with a proper depth of 5 cm in the early growth period of the lotus rhizome, and when the lotus rhizome grows to the middle period, gradually adding water until the water depth is 15 cm; step 3, carrying out full-field spraying with a mixed solution of an 800-fold thiophanate methyl diluent with a concentration of 50% and a 600-fold chlorothalonil diluent with a concentration of 75% in July; and step 4, when the occurrence of the rot disease is discovered, carrying out treatment by uniformly spraying a 400-fold DT wettable powder diluent with a concentration of 50%. With the prevention and treatment method for the lotus rhizome rot disease disclosed by the invention, the depth of a water layer is controlled according to different phases of the lotus rhizome; meanwhile, the enhancement of spraying a fungicide in a peak period of incidence effectively prevents the lotus rhizome rot disease and improves the yield of the lotus rhizome.

Description

technical field [0001] The invention relates to a method for preventing and treating lotus root rot, which is applied in the technical field of lotus root planting. Background technique [0002] Lotus root rot is caused by the infection of the fungus Fusarium rhizomes. The fungus survives the winter in the soil as mycelium along with the diseased residue. The fungus invades from the wound of the underground stem and the mycelium spreads in the stem. Ultimately, the aboveground blades and petioles die, which brings great distress to lotus root farmers. At present, there is no systematic way in the market to prevent and treat rot, which brings significant losses to the economic benefits of farmers. Contents of the invention [0003] In order to solve the above problems, the present invention discloses a method for preventing and treating spoilage disease of lotus root, which can prevent the breeding of spoilage disease in advance and greatly improve the economic benefits of ...

AI Technical Summary

Problems solved by technology

Eventually, the aboveground leaves and petioles will die, which will bring great distress to lotus root farmers. At present, there is no systematic way to prevent and control rot in the market, which will bring significant losses to the economic benefits of farmers.