How to control root-knot nematode disease of Salvia miltiorrhiza?

How to control root knot nematode disease? How does red sage root knot nematode disease have symptom? The control methods of root knot nematode disease of Salvia miltiorrhiza can be referred to as follows: I. Harmful symptoms This disease harms the roots of Salvia miltiorrhiza. The injured taproot, lateral root and fibrous root have tumor-shaped gall, the taproot and lateral root become thin, fibrous root become more. The gall has fine hair roots. After parasitizing nematodes, the root system function was destroyed, the plant was dwarfed obviously, the leaf color turned yellow, the growth was thin, and the yield was affected. II. Control methods 1. Rotation: rotation with gramineous crops for more than 3 years can reduce nematode density in soil. The longer the rotation period, the better the effect. Be careful not to rotate with the host plant of root knot nematode disease. 2. Chemical treatment: 1.5~ 2 kg of 3% Miler granules per mu, 50 kg of dry fine soil, applied to 20 cm of soil 10 days before sowing, and immediately covered with soil flattening. Can also be mu with 98% cotton (will speed out) granules 5~ 6 kg, add dry fine soil appropriate mix, in the sowing time into the sowing ditch. Click to get more Danshen planting technology Click to get more herbal planting technology