Recently, many melon farmers have consulted with some watermelons that are wilting and some leaves have yellowed. At present, the wilting death of watermelon seedlings is mainly caused by watermelon wilt, root rot, and physiological diseases. Since the spring of this year, the temperature has been unstable, and the temperature difference between morning and evening is relatively large. The windy and rainy days cause more illnesses of watermelon seedlings. Physiological wilting is mainly because the cultivation layer is too shallow and the amount of nitrogen fertilizer is too large, resulting in excessive overgrowth of the ground and poor root development. Should control the amount of nitrogen fertilizer, deep plowing the soil, or to avoid deep plowing to loose deep soil, promote root development, increase absorption capacity, and can spray natural alizarin. In addition, watering during the growing season should avoid excessive water temperature. If the water is poured more than 35°C at noon, it will easily lead to clogging of the catheter and wilting. Plants with blight disease have tan-brown spots on the cross section of the stem; plants with root rot disease have brown roots and decay. Both of these diseases are contagious soil diseases. The longer the continuous crop year, the more serious it will be. Prevention and control should be avoided by avoiding continuous cropping, changing crop rotation for more than 5 years, and not making continuous cropping with melon crops; land should be deep-flipped or sprayed with soil conditioner to promote loose and transparent soil of 50 cm depth, promote root growth and development, and improve Disease resistance; disease-free Daejeon seedlings to prevent seedlings infection; seed soaked with 50% carbendazim 600 times soaking; serious disease resistance can be used as a rootstock grafted gourd seedlings; early onset of carbendazim 600 Irrigation with roots, 250 grams per plant, good control effect. Disclaimer: Some articles in this website have been transferred from the Internet. If you are involved in third party legal rights, please inform this website. phone Blackhead Suction Tool,Best Blackhead Remover,Electric Blackhead Remover,Best Blackhead Suction Remover Shenzhen Jie Zhong Lian Investment Co., Ltd. , https://www.szmeizonscares.com