How to treat the rotten roots and leaves of Pinellia ternata

Pinellia ternata is a medicinal plant of Araceae, also known as Pinellia ternata and Pinellia ternata. Its medicinal part is tuber and has wild distribution in all parts of our country. It has the effect of dryness, dampness and phlegm, reducing adverse events and stopping vomiting. So how to treat the rotten roots and leaves in the process of planting Pinellia ternata?

First, how to treat rotten roots and leaves

First, drug treatment: using fungicides chlorpromazine, allicin, plant disease clear, rooting agent, 100 jin of water for root irrigation.

The second is to deal with the soil, one mu of land, 1200 grams of microbial agent, diluted 800jin of water, drip irrigation. Using the above two schemes, the seedlings can be protected by more than 90%.

Second, the causes of rotten roots and leaves of Pinellia ternata

High temperature, rainy season, excessive soil moisture for a long time, and the expansion period of tubers and bulbs occurred. At the initial stage of pathogen infecting Pinellia ternata tuber, irregular black spots appeared around the tuber, which expanded rapidly. After 4 days, many bacterial spots joined together and continued to infect the tuber. At this time, the root system of Pinellia ternata began to atrophy, and the aboveground leaves gradually changed from green to yellow and withered. A week later, the tuber of Pinellia ternata showed round blisters, like ripe grapes, the tuber was full of black water, the whole plant died, and only a thin outer skin was left. The spread of bacteria will quickly infect other Pinellia ternata tubers, causing the whole Pinellia ternata land to rot and rot in a short time, first rotting large tubers, and then spreading to small tubers. This disease is also a common, difficult to treat, harmful and wide-ranging disease in artificially cultivated Pinellia ternata.