Control of White Silk Disease of Sophora flavescens

Sophora flavescens (scientific name: Sophora flavescens var. Flavescens) is a variety of Sophora flavescens in Leguminosae. Distributed in Russia, Japan, India, Korea and Chinese mainland, growing in areas 1500 meters above sea level, mostly in hillsides, sandy grassy slopes in shrubs and near fields, Sophora flavescens, the name of traditional Chinese medicine. The dried roots of Sophora flavescens, a leguminous plant, were dug in spring and autumn to remove root heads and branchlets, washed, dried, or sliced fresh. It is bitter and cold. It has the function of clearing heat, dryness and dampness, killing insects and diuresis. For hot dysentery, hematochezia, jaundice and urination, red leucorrhea, vaginal swelling and itching, eczema, eczema, skin itching, scabies leprosy, external treatment of trichomonal vaginitis.

Sophora flavescens white silk disease if not timely control will bring huge losses to Sophora flavescens planting, then how to control Sophora flavescens white silk disease?

What is white silk disease?

White silk disease, also known as sclerotia root rot and sclerotia seedling blight, harms the roots and stems of seedlings and young trees. The disease can harm many kinds of plants, such as Camellia oleifera, paulownia, catalpa, citrus, apple, sycamore, paulownia, walnut, Masson pine and so on. The disease is mainly distributed in the south and southwest of Henan Province.

The white silk disease of Sophora flavescens is mainly harmful to the roots of Sophora flavescens. At the initial stage of the disease, white silk-like sclerotia appeared near the main root from the base of the stem to the topsoil layer, and the root suffered wet rot. In the later stage, the aboveground branches and leaves of the plant wilted and died. When the weather is wet, there are often white hyphae and mouse shit-like sclerotia at the base of the diseased stem. The serious year caused the yield of Salvia miltiorrhiza to decrease greatly.

How to control the white silk disease of Sophora flavescens:

The medicament can choose 50% carbendazim wettable powder 800x liquid, or 75% chlorothalonil wettable powder 1000 times liquid, or Trichoderma harzianum 600x solution to irrigate the root.