White tinea disease: also known as "white sugar rotten", damages the roots of Atractylodes macrocephala, the early onset of the above-ground part has no obvious symptoms. In the later period, with the increase of temperature and humidity, the hyphae penetrated the soil layer, the white mycelium was densely covered with rhizomes and the soil surface around them. The top dead plants were wilted, drooped, and finally the whole plant died. Disease characteristics: soil, surgical planting is the main source of infection, during the onset of hyphae spread, sclerotia with the flow of water for reinfection. From the onset of disease in late April to September, it can occur from the early June to the early August and the high temperature and humidity season is the peak of onset. Root rot: also known as dry rot, is a disease of the Atractylodes vascular system. In the early stage of disease, only some roots and fibrous roots turn brown and dry rot, then spread to the roots and the ground, causing the root stem to dry rot, and the branches and leaves appear wilting. The characteristics of the disease: Soil, planting and carrying bacteria are the main source of primary infection of the disease, and underground pest activities frequently aggravate the occurrence of this disease. The temperature was 22-28°C and the relative humidity was 80-90%. The onset began in mid-April, and the onset of disease was June to July. Iron leaf disease: The diseased leaves are the main ones, occurring from the base of the leaves first and gradually spreading upwards. Yellow and green spots appear on the leaves at the early stage of the disease, and later spots expand into iron-black large spots, which quickly spread over the entire leaf. Characteristics of the disease: Diseases and residues are wintering sites and primary sources of infection. Diseases usually begin in late April to early May, and are in June-August. The incidence is fastest before and after bud removal. The prevention and treatment of Atractylodes macrocephala has to use comprehensive agricultural measures to reduce the occurrence of disease to the lowest level. If necessary, it can use high-efficiency, low-toxicity, low-residue pesticides for prevention and control, promote one drug and multiple treatments, reduce the use of pesticides, and prioritize the use of biological pesticides and mineral sources. Copper preparations in pesticides, etc. The pesticides and methods required for preventing and controlling pesticides after the emergence of Atractylodes macrocephala include: (1) From late March to early April, attention should be paid to preventing and controlling underground pests such as earthworms, small tigers, and earthworms before and after emergence. Use 50% phoxim EC 1000x or 48% Loxen 1000x. (2) After emergence from the harvest, especially the tender seedlings are susceptible to aphid damage, they should be checked in time and sprayed with 40% dimethoate 1000 times or 0.4% acaricidine 500 times. (3) Before and after Ching Ming, use water for medicine: Add 5% Jinggangmycin WP to 25-50g or 50% Pharmacy 25-50g to prevent diseases; add 50% phoxim to 25-30 Milliliters or Lobsies control underground pests. (4) White fungus is prone to occur from late April to early July and from September to October, especially in hot, hot and humid weather. Check the field, found that there are withered plants, white topsoil on the stem base, remove diseased plants, withdraw lime, mu 70% thiophanate-methyl 800 times or 5% Jinggangmycin water 500 times or 160 10,000 units of venom spray 3000 times. (5) From April to harvest, especially from June to early September, it is prone to root rot. After showering, it is sprayed immediately. After that, it is controlled once every 10 days for 3 consecutive times. Control pesticides can be used 20% triadimefon EC 500 times, can cure albino iron leaf disease (commonly known as lobe disease) and Atractylodes blight. (Zhejiang Chunan County Institute of Chinese Medicinal Materials (322300) Zhou Xiaolong)
Multifunctional Cryolipolysis Machine
Cryolipolysis Machine,Fractional Rf Machine,Multifunctional Machine
Handsome Beauty Product Co., Limited , http://www.chinabeautyproduct.com