Wheat scab, which damages wheat and barley and spreads throughout the country, is one of the major diseases in wheat production. And victimized grains are toxic to humans and animals. After eating, it can cause symptoms such as weakness, dizziness, abdominal distension, diarrhea, abdominal pain, and vomiting. After eating, it can cause loss of appetite, diarrhea, and premature delivery. Therefore, we must pay attention to the prevention and treatment of the disease. [Symptoms and Occurrence] Gibberella can occur from the seedling stage to the panicle stage of wheat and it mainly damages the seedlings, stems and ears of wheat to endanger the loss of wheat ear. At the beginning of the ear, the glume first appeared as a water-stained hazel-like lesion that gradually spread to the entire spikelet. The diseased ear immediately appeared yellow-brown or withered yellow. Afterwards, pink mold was formed at the base of the glume or the base of the spikelet. Therefore, it is called scab. During the wax ripening period of the wheat, black granules can be produced on the diseased ear. Only 1 or 2 spikelets were affected in the lightly-damaged ear, and most of the diseased spikelets or panicles developed. Damaged wheat grains are empty and some lose their ability to germinate. When the seedlings or culms are infested, the damaged parts turn brown and pink moldy shoots are produced on the joints. In severe cases, the whole plant will die. The germs of head blight are very widespread. The bacteria can lurk in winter and winter in soils such as barley, wheat, oats, corn, rice, sorghum, sweet potatoes, cotton, rapeseed, alfalfa, bermudagrass, reeds and other diseased bodies. The disease occurs above 15°C, and 25°C is the optimum temperature. Wheat flowering stage, high temperature and rain, the most appropriate disease. The temperature of the wheat filling stage can meet the disease requirements. Therefore, the number of diseases, rainfall (rainfall and rainy days) and disease susceptibility are the main factors affecting the severity of disease. [Control method] 1. Use resistant varieties. 2. Strengthen cultivation management to dig the wheat field drainage ditch, so that there is no water after the rain. Apply enough basal fertilizer, apply topdressing as early as possible, and apply fertilizers with various elements in a rational manner to promote robust growth and enhance resistance. 3. The focus of drug prevention and control drug prevention is to protect the ear, and the critical period for prevention and control is from heading flowering to filling stage. The first spraying between the panicle to the beginning of the flower, every 7 to 10 days and then spray the second time. Use 100 kg of liquid per acre. Adding 100 grams of detergent as a spreading agent in the liquid is better. The side spray method is used during spraying, and the spray head is placed on the side so that the spray drops out to the outer layer in the left and right direction. (1) 50% carbendazim WP 1000 times. (2) 70% thiophanate-methyl wettable powder 1200 times. (3) 40% sterilization Dan wettable powder 200 times. (4) 50% Bennett WP 1000 times. (5) 50% Ketan Dan WP 400 times. (6) Baume 0.5 to 0.8 degree lime sulfur diluent. (7) The agricultural antibiotic 86-1 is diluted 10 times. (8) 50% dinitrate wettable powder 150 to 250 times, can simultaneously control wheat rust. The above agent spray is the best, but in the rainy year, grab the powder in the rain gap, dust can be used, and the dosage should be increased according to the amount of drug used per acre. The dry soil should be mixed with 20 kg of dry soil or 4-5 kg ​​of hay powder. In the morning, the dew does not dry. Shisa.
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