Comprehensive control technology of wheat aphids Wheat aphids are also called insects. In recent years, the cultivation of wheat areas has often caused damage, especially in the conditions of good fertilizer and water, and the growth of flourishing fields is more serious. The early stage of damage caused yellow wheat seedlings, which affected growth. In later stages, yellow spots appeared on the damaged parts. The yellow wheat leaves gradually became yellow, and the wheat grains were not full. In severe cases, the wheat ears were pale and could not be solid and even the whole plant died, seriously affecting the yield. There are many types of wheat aphids, but the main ones are spring wheat aphid, wheat long aphid, earthworm, and corn borer. Occurrence of the main damage characteristics and prevention and control: The time of seedling damage is severe due to spring wheat sprouts and pods. After the jointing stage, the adult plants are severely damaged by wheat and stubble, and corn stubble is often severely damaged in some plots. From the point of view of the locust species, spring wheat sprouts occur earlier, followed by wolfberry pods, and wheat stalks occur later. There are two peak periods of locust infestation in Honghe Prefecture, and the first peak period occurs in the middle and late December. The second peak occurred in the middle and late March of the following year, and the second peak is the greater impact on wheat yield. period. Damaged parts Spring wheat buckwheat is mainly at the base of wheat; buckwheat is mainly at the base of the roots and stems: wheat longbow quail is mainly damaged in the middle and upper leaves and panicles. Main control methods: According to the characteristics of locust infestation, from the current and the beginning of February in the coming year, field inspection will be carried out. As long as there are 30 to 60 heads per square meter in the seedling stage, it will be necessary to prevent and control; ~ 20% or average of about 10 locusts per plant should be promptly controlled. Per acre with 20% chrysanthemum EC 80 ml, 20% Alum net 60 ml, 40% Potenta 80 ml, 25% Gendolo 60 ml, 2% Astragalus 80 ml, 5% Lectra 50 ml, 3 % 劈蚜 60 ml, one of the above pesticides, watered 35 to 50 kg (2 to 3 buckets of water), sprayed dry in the morning or after 4 pm. If it happens more serious. Each barrel of water plus a pack of 10% imidacloprid mixed spray. In the booting stage and heading stage, potassium dihydrogen phosphate or multi-fertilizers, such as potassium dihydrogen phosphate, can be added and mixed to spray the preserved fruits and fertilizers to promote ripening of the grains and increase the yield. Lip Scrub,Lip Exfoliator,Lush Lip Scrub,Brown Sugar Lip Scrub Guangzhou Lingxue Cosmetics Co., Ltd , https://www.lxgj188.com
Comprehensive Control Techniques of Wheat Aphids