What does the astragalus tree look like?

The Chinese name of the astragalus tree is Huangqi. It is distributed in northeast, north and northwest China, and generally grows on forest margins, bushes or under sparse forests. What does astragalus trees look like?

1. Growth habits of Astragalus membranaceus

Astragalus is a plant of Leguminosae and Astragalus, and it is also a kind of medicinal plant. The main medicinal part is the root of Astragalus. The root of Astragalus is sweet and lukewarm, and has the functions of tonifying qi and solidifying surface, diuresis and antibiosis, suppuration, empyema, myogenesis and so on.

Astragalus trees generally grow in China's temperate and warm temperate regions, happy sunshine, cool climate, drought tolerance, not resistant to waterlogging. It has strong cold resistance and grows in the middle and lower parts of the hillside, including sunny slopes, forest margins, thickets, forest grasslands, sparse forests and meadows. The aboveground parts were not cold-tolerant, most of the leaves had fallen off in Frosts Descent season, the aboveground parts withered in winter, and new seedlings were issued again from the persistent roots in the next spring.

What does the astragalus tree look like?

Astragalus membranaceus is a perennial herb 50-100 cm high. Its main root is thick, woody, often branched, gray-white, the stem is erect, the upper part is much branched, finely angled and white pilose. The leaves of Huangqi are pinnately compound leaves, which usually have 13-27 leaflets and are 5-10 cm long.

III. Pest control of Astragalus membranaceus trees

The diseases and insect pests of Astragalus membranaceus are Fusarium wilt, powdery mildew and small weevil.

The main results are as follows: 1. Fusarium wilt is a root disease caused by fungi. The control method is not to plant on acid soil, not to cultivate in low-lying land, and not to continue cropping. The acupoint can be irrigated with 1000 times of 50% lime water or 50% carbendazim wettable powder.

2. Powdery mildew is mainly harmful to leaves and pods. The control method is to spray 2-3 times with 1500-fold solution of 25% trimethoprim or 120 Bordeaux solution at the initial stage of the disease, or 1000-fold solution of 50% Dysenammonium aqueous agent or 1000-fold solution of 50% topiramine wettable powder.

3. The control of small weevil can be sprayed with 2000-fold solution of trichlorfon every 10 days after emergence to kill adults.