The Chinese literary name is Aster tataricus L.F. Alias: Qingyuan, Ziqian, Xiaobian, etc. Aster, a perennial herb in Compositae, has an oblique rhizome. The stem is erect, 40-50 cm high, stout, with fibrous dead leaf fragments at the base and often adventitious roots, edges and grooves, which are sparsely hairy and have sparse leaves. The basal leaves withered at anthesis, oblong or elliptic spoon-shaped, and the lower part gradually narrowed into stalks.

It is mainly produced in Hebei, Inner Mongolia, Northeast China and other regions, and also distributed in Korea and Japan abroad. It is born in low-mountain shady slope wetlands, hilltops and low-mountain grasslands and swamps at an altitude of 400-2000 meters, and is resistant to waterlogging, drought and cold.

Extended data:

Pest control of aster;

Root rot: it mainly harms the stem base and reed head of plants. At the early stage of the disease, the roots and rhizomes are partially browned and rotted, and brown spindle-shaped lesions are produced at the base of the petiole, and gradually the leaves die and the rhizomes rot. Prevention and control methods: At the initial stage of the disease, 50% carbendazim wettable powder l 1000 times solution or 50% thiophanate-methyl wettable powder 1000 times solution was sprayed for prevention and control.

Black spot disease: purple-black spots appeared on the leaves at the early stage of the disease, and then expanded into nearly round dark brown spots. Prevention and treatment methods: At the initial stage of the disease, spray 65% zineb wettable powder with 500 times solution or 50% thiophanate-methyl wettable powder 1000 times solution for prevention and treatment, and spray three times every seven days 1 time.

Spodoptera argentea: Larvae bites the leaves, causing cavities or nicks. Control method: spray with 90% trichlorfon crystal 1000 times solution.

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