Wheat stripe rust symptom picture

Wheat rust is commonly known as "xanthosis", which is divided into three types: rust, stem rust and leaf rust. It is an important disease in China's wheat production with wide distribution, rapid spread and large area of ​​damage. Among them, wheat stripe rust is most common and serious. Mainly in Hebei, Henan, Shaanxi, Shandong, Shanxi, Gansu, Sichuan, Hubei, Yunnan, Qinghai, Xinjiang and other places.

In the seedling stage, a multi-layered arrangement of fresh yellow urediospores is produced on the leaves of the seedlings. In the initial onset of adult leaves, the summer spore heap is small strips, bright yellow, elliptical, parallel to the veins, and arranged in rows, like the stitches of the sewing machine, in the shape of a dotted line, the later epidermis ruptures, rust brown powder When the wheat is near maturity, a round to oval black-brown summer spore heap appears on the leaf sheath, and a bright yellow powder, ie, urediospores, is emitted. The late ward produces black spors. The teliospores are short-lined, flat, and constant in fusion. They are ambushed in the epidermis and do not crack when mature, unlike wheat stem rust.

For the prevention and treatment of wheat stripe rust, it is recommended to apply compost or decomposed organic fertilizer prepared by enzyme bacteria, increase the application of phosphorus and potassium fertilizer, do a good job of NPK, and enhance the disease resistance of wheat. China has used bactericides effective for rust, such as dilute sodium, tartar sodium, fluoroquinone preparation, calcium amino iodate, fluorosilicone urea, rust rust, sterilized dan, daisen zinc, etc.

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