How to prevent and cure blight of kiwifruit seedlings?

What harm does blight do to kiwifruit seedlings? How to prevent and cure blight of kiwifruit seedlings? Also ask experienced netizens to help introduce the harm and control methods of kiwifruit seedling blight in the land network, which are listed below for netizens' reference. The harm of blight to kiwifruit seedlings: the main disease of blight is mainly in the seedling stage of kiwifruit. The blight is generally transmitted by soil disease remains and wounds and lenticels invade. Under normal temperature (about 20 ℃), high humidity, root waterlogging, or excessive watering under high temperature and drought from July to September, the blight is easy to infect kiwifruit seedlings and damage the stem and leaves above the root neck of the seedlings. At the initial stage, kiwifruit seedlings occurred from the root neck, showing waterlogged spots, light brown, semicircular or irregular shape, and then enlarged, the root neck cortex rotted for 1 week, and the aboveground leaves wilted; the root cortex of diseased seedlings was easy to fall off, leaving only xylem. The symptoms of leaves are similar to those of young stems. Prevention and control methods of kiwifruit seedling blight: first, select land with high terrain, good drainage and loose soil as seedbed; soil disinfection can be carried out under certain conditions; application of rotten organic fertilizer; or 5406 treatment of soil can prevent the disease. Prevention and cure method 2, dig the diseased seedling in time and burn it in time, and spread the seedling bed with plant ash and lime (plant ash ∶ lime = 8 ∶ 2) to prevent the disease from spreading; it is effective to spread the seedling bed with 75% dimethyclol powder or 75% chlorothalonil wettable powder in the middle of the disease. Third, the blight is a fungal disease, and fungicides should be used to control it. For example, pentachloronitrobenzene 200 × 400 times, or 50% carbendazim 800 × 1000 times, sprayed once a week for 2 weeks, or 1 ∶ 1 ∶ 200 Bordeaux solution or 0.3% 0.5 degree stone sulfur mixture. Click to get more kiwifruit planting techniques click to get more fruit planting techniques