There are many vegetable growers in Qitou Village, Baocheng Street, Changle County, Weifang City. The watermelons are currently in the swollen period of young melons. The reporter learned from interviews in the village that many Qiuyu watermelons appeared on the vines this year. Cracking phenomenon. The reporter saw in Master Zhao’s shed that from the top of the watermelon rootstock up to the first leaf of the scion, the length of about one finger showed the symptoms of stem vine cleft, and at the time of onset, the rootstock and scion contact Near-circular lesions appear, usually red. Then it developed upwards, which made the epidermis of the vine from the grafting point to the first leaf cleave. The back cleave gradually deepens, and the vascular bundle is severely exposed. Most of the mid-stage disease is accompanied by red amber mucus. This is a typical case of blight, and some growers consider it a blight because the symptoms of watermelon wilt are very similar to those of blight. After the onset of watermelon wilt, the base of the stem became brown, the stem bark cracked longitudinally, and there was also a resinous glue overflow. After drying, it turned reddish-black and the vascular bundle became brown. In the later stages of the disease, the cortex was peeled off, the xylem was disintegrated, and the roots rotted only yellow-brown fibers. The diseased stem of the blight disease shows that the vascular bundle does not change color, and produces a large number of small black spots and secrete amber glial material on the lesion. The biggest difference between it and blight disease is that the blight does not rot. Watermelon to the larvae during the expansion period, requires a lot of water and nutrition, if it is withered, then the watermelon is bound to appear wilting, and then gradually died. Although Master Zhao's shed had a large number of such symptoms, he did not have a wilful one. This shows that the disease is watermelon blight, not wilt. Therefore, the reporter suggested that Zhao master should take medication in time. Can be used alternately 40% of the available 900 times solution or 25% chlorpromazine 1500 times or Ami Miao received 1500 times spray control. Can also use 50% carbendazim or 70% thiophanate-methyl water and batter (about 20 times) smear on the pathogenesis. Msct Scanner,Gemstone Detector,Vascular CT Scan,Conventional CT Scan MinFound Medical Systems Co., Ltd , https://www.minfoundmed.com