What are the prevention methods for potato diseases and pests?
Zhu Zhenhua, an expert from the Northern Vegetable News, recently received many consultation calls from vegetable growers in Anqiu, Shanghe, Yinan and other places. The most frequent topic was potato disease problems. Judging from the situations reported by phone, potato diseases have been occurring frequently recently, most commonly potato scab and powdery scab. Teacher Zhu said that each...
Potato diseases and pests mainly include late blight, early blight, viral diseases, bacterial wilt, etc. Pests: white grubs, black cutworms, mole crickets, etc. To control diseases and pests, we must adhere to the principle of prevention first and integrated control, so as to reduce the losses caused by diseases and pests to a minimum.Prevention methods:
First, seed potato prevention: choose low-generation seed potatoes with high purity, no virus, no mixing and high uniformity. Spread the seed potatoes evenly in a cool, ventilated and dry place for storage, check frequently, remove rotten potatoes, and strictly prevent diseased potatoes from being planted.
Second, sowing prevention: strictly disinfect the cutting knife when cutting potatoes to reduce the spread of pathogens. When sowing, use pesticides to prepare poisoned soil or mix it with base fertilizer and apply it into the soil, which can prevent underground pests and seed-borne pathogens.
Third, field prevention: carry out field inspections frequently, promptly detect the first diseased plants, and apply the right remedy. When the seedlings emerge uniformly, scatter plant ash or lime to enhance the resistance of the plants.