Damage characteristics: Rice leaf roller is a migratory pest. The damage is caused by the tip of the larvae. When the larva is infested, the larvae hide in the temporal lobe to feed on the epidermis and green mesophyll tissue to form a white bar, and the heavy-damaged plots are white and have a serious impact on rice yield. The biggest damages occurred during the booting and heading stages. Adults lived in a nocturnal cycle and had phototaxis. They chose to grow green and lay eggs in the paddy field at the jointing stage and the panicle differentiation stage. Most of the spawning sites are in the plants and the back of the upper leaves, especially the 3 leaves. The newly hatched larvae usually climb into the leaves of the rice leaf or the nearby leaf sheath. The 2nd instar begins to grow in the tip of the locusts and turns into a worm infestation. At this time, it is called the leaf and leaf stage. After the 3rd instar, it begins to turn and damage, 4-5 The food intake increased sharply, and its leaf consumption accounted for 94% of the total larval food intake. The law of occurrence: Rice rice leaf roller has the characteristics of migration from north to south. The amount of moths moved in and the climatic conditions after migration are the preconditions for the severity of the impact. The growth and development of rice leaf roller require moderate temperature and high humidity. During the development period, cloudy and rainy conditions are conducive to development. High temperature, drought, or low temperature are all adverse to its development. . Prevention: Take the combination of agricultural control and chemical prevention, rational fertilization, promote appropriate maturation of rice, increase rice insect resistance, shorten the duration of the disease, properly adjust the duration of the field, reduce the humidity of the larvae in the field, or at the peak of phlegm Fill deep water for 2-3 days. For egg hatching and the second-instar larval peak application, multi-target 2000-3000 times solution, or Pioneer 2500-l500x solution, or 80% insecticidal powder 35-40 g/mu can be used. 10% imidacloprid 10-20g/mu and 80% insecticide single 40g/mu mixed, the main anti-rice leaf roller, and rice planthoppers. Cosmetics are compound mixtures made from various raw materials after reasonable blending and processing. There are many types of cosmetics raw materials with different properties. According to the raw material properties and uses of cosmetics, it can be roughly divided into two categories: base raw materials and auxiliary raw materials. The former is a main raw material of cosmetics, which occupies a large proportion in cosmetic formulations, and is the main functional substance in cosmetics. The latter is responsible for shaping, stabilizing or imparting color, fragrance and other characteristics to cosmetics. These substances are not used in large amounts in cosmetic formulations, but are extremely important. Cosmetics are chemical mixtures made of natural, synthetic or extracted substances with different functions as raw materials and processed through production processes such as heating, stirring and emulsification. Collagen peptide, Arbutin, Coenzyme Q10, GSH, Cosmetic Raw Materials, lipoic acid Xi'an Gawen Biotechnology Co., Ltd , https://www.ahualyn-bio.com