The Prevention and Control Techniques of Soft Rot in Sweet Potato During Seedling Stage
Symptoms: After the infestation of potato chips by the pathogen, the potato pieces become soft and rot. The bed soil is covered with a layer of gray-white germs, and the bed soil is also slightly sunken. It is mainly caused by cold injury or bumping of the potato seed during the storage period or the nursery period. When the temperature is between 15 and 23 degrees, the bacteria most easily infect the injured potato species. After invading, the tubers continue to rot at lower temperatures.
Control methods: When potato seedlings are strictly selected, they are not selected on the chilled potato heap. For potato seedlings that are slightly cold, the bed temperature should not be too high before emergence, and should be maintained at about 28 degrees to promote the rejuvenation of potato species and control the reproduction of pathogens. In the event of onset, we must promptly eradicate the diseased potato and diseased soil, and then row on the disease-free potato species, replace the pure land, in order to reduce the spread of the disease.
Vermicelli Bag,Vermicelli Packaging Bag,Paper Bag For Vermicelli,Vermicelli Bag For Dried Vermicelli
Ningxia ZhaiXianSong Commercial and Trading Co.,Ltd. , https://www.nxupin.com