The symptoms are also known as black mold, aspergillosis. More occurs in the seedling stage. Stems at the base of the stem appeared dark concave chloasma, and the edges were brown. After the lesions were enlarged, the epidermis was longitudinally cracked, and it was dry and rot. Only the broken fibrous tissue remained and the pith of the vascular bundle became purple-brown. The disease minister is full of black moldy matter, namely the conidiophores and conidia of pathogens. The diseased plant showed water loss in the upper part of the plant and soon withered to death. The nuts are rotted and cannot germinate and grow black mold. The cotyledon and hypocotyl junctions were infested, and the cotyledons blackened and rotted. The pathogen is Aspergillus niger van Tiegh. It is called Aspergillus niger and belongs to the fungus Aspergillus spp. The tip of the conidiophore stem is inflated with a nearly spherical shape, with an upper radial stem and a series of round, single cell, brown conidia. Conidia size 2.5-5 μm. In addition, A. pulverulentus (Mcalpine) Thom can also cause disease.
Transmission Pathways and Pathogenic Conditions Germs use hyphae or conidia to overwinter in soil, sickness or seeds. After sowing peanuts, the wintering germs produced conidial invading cotyledons and germs, severe deaths could not be excavated, and lighter people had conidia on root and neck lesions after unearthing, and reinfested by wind and rain and airflow. Peanut trees are the most severe onset. Alternating between high temperature and high humidity or drought or wetness facilitates the onset of disease. Poor drainage, management of heavy land mass. Continuous cropping of peanut fields is easy.
Control methods (1) Select seed selection full of disease-free, mildew-free seeds. (2) Implement 2-3 year rotation. (3) Strengthen field management. Sowing should not be too deep. Do not apply organic fertilizer. Remove water after the rain. (4) Seed treatment with seed weight of 0.2%-0.5% 50% carbendazim wettable powder seed dressing or liquid soaking, can also be used seed weight 0.5% -0.8% of 25% phenanthrenequinone powder or 0.2% of 50% Fumei double powder dressing.
Ginseng can improve the general condition of diabetic patients, but does not change the degree of hyperglycemia. In other words, ginseng can reduce urinary sugar and blood sugar in patients with mild diabetes mellitus by 40-50 mg, which can be maintained for more than two weeks after discontinuation of medication. Although the effect of reducing blood sugar in moderate diabetes mellitus patients is not obvious, most of the general conditions have improved, such as thirst disappeared or alleviated; some patients can reduce insulin consumption after taking ginseng.
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