Sophora flavescens root nematode disease

Sophora flavescens, also known as bitter bone, cow ginseng and Chuanshen, is the dried root of Sophora flavescens (sophora flavescens ait.) It has the effect of clearing heat, dryness and dampness, killing insects and diuresis, treating heat-toxic blood dysentery, intestinal wind blood, jaundice and urination, red leucorrhea, swelling and itching, infantile pneumonia, accumulation, acute tonsillitis, hemorrhoids, prolapse of anus, eczema, eczema, skin itching, scabies, scald, scald, etc. External use can treat trichomonal vaginitis. It is distributed and cultivated all over the country. Shandong is mainly produced in Weifang, Linyi, Zibo, Zaozhuang, Jinan, Yantai, Taian and other places.

Biological characteristics

Sophora flavescens is wild in the sunny places of hillside grasslands, plains, hills, roadsides, sandy land and red soil. I like a warm climate. It is not strict to the soil, the general soil can be cultivated, but the loam or sandy loam with deep, fertile and convenient drainage and irrigation is the best.

The root nematode disease of Sophora flavescens has caused serious adverse effects on the production of Sophora flavescens, so the planting of Sophora flavescens must understand and control the root nematode disease, so let's learn how to control the root nematode disease.

What is a root nematode?

Root-knot nematode (Meloidogyne) is a highly specialized omnivorous plant pathogenic nematode. For root-knot nematode disease, the plant protection policy of giving priority to control and comprehensive control must be strictly implemented, with emphasis on agricultural and physical control measures, combined with chemical and biological control, in order to effectively prevent its harm.

Harmful symptoms of root nematode disease of Sophora flavescens

The disease harms the roots of Sophora flavescens. Nodular galls were found on the main root, lateral root and fibrous root, the main root and lateral root became thinner, and the fibrous root became more. There are fine hair roots on the galls. After the nematodes were parasitized, the root function was destroyed, the aboveground parts of the plants were obviously dwarfed, the leaves became yellow, the growth was thin, and the yield was affected.

Control methods of root nematode disease of Sophora flavescens:

1.8% avermectin EC 1500 Mel 2000 times solution, 50% phoxim EC 1000 times solution can be selected, and the two agents can be combined to irrigate the root.