Chinese herbal medicine 6 kinds of disease

prevention and control of the common

      Make blight: first is the base of seedlings appear, and expanded into brown spots around the stem disease spot, disease spot water loss drying shrinkage, the seedlings into to die. The disease harm astragalus, eucommia, ginseng, notoginseng, white atractylodes, the north wind and chrysanthemum straight ladybell, etc. Prevention and control measures, reducing the soil humidity, prompt remoal diseased plants, and carbendazim processing plants, prevent soil other healthy plants infection.

     Blight, factoring in the lower leaves turn yellow chlorosis, and then died. ChongCha, drainage bad clay serious disease. Astragalus, balloonflower and watercress medicinal materials such as often infection the disease. Prevention and control measures should be and gramineous crop rotation: come on, with early carbendazim, topsin-m, spray treatment agent.

     Root: first by a root, they become brown decay, and gradually spread to root, resulting in the root rot, stems from the next up until the leaf wilted, all the plants to die. The disease is often and underground nematodes, root mites in the soil, harm the viscosity, the field water too much weight the serious. Radix scutellariae, danshen, root, astragalus, prince Edward and, herbaceous peony and dangshen susceptible to the disease, etc. Prevention and cure measures: before planting with c line phosphor and pesticides from broadcasting the whole earth, prevention and control agent underground pest, and at the same time, in order to enhance was rotten organic fertilizer resist disease. The initial available topsin-m, carbendazim 800 ~ 1000 times liquid filling root, the drainage in time.

     Root knot nematode: because the parasitic nematodes roots in medicinal materials, root minister many tumors, the slow growth of plant material of leaves, yellow, finally the plant to die. The disease harm danshen, balloonflower, astragalus membranaceus, ginseng and north straight ladybell, etc. Prevention and control measures: best and gramineous crop rotation or natural rotation comprehensive prevention and control. 1. Soil disinfection. Before sowing or planting in, every square metre line with bacteria's 0.3 ~ 0.5 g, against the water 3500 ~ 7500 times liquid or sieve fine earth wet of 200 ~ 500 times evenly spray or broadcast on the soil surface, the conditions can be used plastic film mulching 48 to 72 hours; Or with 5% per line net 3 ~ 4 kg, with fine soil evenly into the ditch was sowing or cave in sowing. 2. Growth period (the period of disease). With bacteria 3500 ~ 7000 times's line of liquid water, plant base.

     .flower: when the seedling base produce brown stains shape disease spot, the young stem rot caused fall soon, seedling died. The disease later the dark brown pigment particles that appear for sclerotia. The disease harm danshen, ginseng, white atractylodes, county, sichuan river xiong, Bang, fumaric and peony, etc. Prevention and treatment: in addition to the rotation, but must in disease centre broadcasting lime powder, plant with carbendazim or grain is sprayed water solution spirit.

      White silk disease: often at or near the ground surface root place or stem base, a layer of white spun silk strings, serious when decay into shape, which eventually led to the particular mess leaves wither, and the plants died. Often in the rainy season or soil conditions by the stains. The disease harm astragalus, balloonflower, white atractylodes, prince Edward and and straight ladybell etc. North Prevention and control measures should be and gramineous crop rotation, or by carbendazim, methyl seed disinfection, the body fluid cloth. (HuangJun)