The adults of Plutella xylostella are 6-7 mm in length, with long and narrow fins and long ciliary hairs. The three-sided zigzag wave pattern of the yellow-white trailing edge of the forewings forms three consecutive diamond-shaped spots when the wings are closed, which is an important recognition feature of adults. one. The larvae are dark brown when they are newly hatched, turn green afterwards, and spindle-shaped with obvious somite. The larvae are lively and lively and will be strongly twisted when touched. The diamondback moth is endangered by larvae. The host has cruciferous plants such as cabbage, broccoli, broccoli and Chinese cabbage. The young larvae only eat leafy flesh and the transparent upper epidermis remains, thus forming a "open skylight" phenomenon on the leaves. The larvae can bite into holes and nicks until the age of 3-4, and when severe, the leaves can be eaten into a net shape. Plutella xylostella is a fly-infested pest that cannot survive winter in Beijing under natural conditions. However, the growing planting area of ​​facilities has created suitable conditions for the wintering of the diamondback moth. Plutella xylostella has been infested in greenhouses in Beijing for approximately one month earlier than exposed land. Therefore, the sheds for cruciferous vegetables cannot be controlled according to the monitoring results of natural populations, and must be based on the Brassicaceae of the park. The continuous production of crops should be monitored and controlled according to local conditions. Planting cruciferous sheds in spring will use insect nets to block adult migration. When adults are seen in the greenhouse, they can hunt 5-8 individual traps or 20-25 yellow armyworm traps per mu. When larvae occur, it is necessary to use Bt, spinetoram, flubendiamide, diflubenzuron and other agents for prevention and control in the low-instar larval stage. Can be used directly to maintain the integrity of cell morphology Guidelines recommend cell preservation fluids for sample preservation and transport. It can be used for sputum, bronchoscopic alveolar lavage fluid, pleural fluid and other liquid samples. Sample storage tubes,Medical disposable storage tubes,Disposable medical consumables Jiangsu iiLO Biotechnology Co., Ltd. , https://www.sjiilobiotech.com