A few days ago, Lanxi county peasants paid military telephone calls to identify how to identify tomato late blight and gray mold. To this end, we have compiled this draft, hoping to help him. Late blight: The whole growing period and the leaves, stems, and fruits are all affected, and the leaves and green fruits are seriously affected. The incidence of seedlings usually begins with dark green water-stained lesions on the leaves, and then spreads toward the stems, with dark brown rots near the petiole. As the disease progresses, the base of the young stems is constricted and the plants wilting fold. At the adult stage, the onset of disease progresses from the lower leaf to the upper leaf. The dark green water-spotted lesions develop from the tips of the leaves and leaves and gradually turn brown. When the disease is heavy, the leaves of the whole plant are dry; the lesions on the stem are brown or dark brown water. Stains, slightly sag; fruit lesions are initially dark green, gradually dark brown to brown, mottled lesions, rough hardened. During the wet period, the white mold layer can be produced at each affected site. Note: 1, sometimes leaf lesions from the tip of the V-shaped, or when the conditions are not suitable disease Department dry, can not see the mold layer, in the simple leaves of disease easily confused with gray mold. 2. When the environmental conditions are particularly suitable, the onset is rapid, and there are no obvious lesions in the leaves, but obvious white molds appear. 3. The simple leaves are easy to be confused with freezing injury, but the freezing injury occurs from the upper leaves. 4. Improper fertilization can also lead to leaf dryness similar to that of late blight, which also occurs from the lower leaves but is evenly distributed throughout the field. Botrytis cinerea: The leaves, stems, flowers, and fruits can be infected, and the incidence of fruit, especially green fruits, is heavier. The incidence of fruit is mostly from the petals, tobras and stigma remaining on the green fruit, spread to the fruit and fruit stalk, and the peel is gray and white and soft-rotated. The diseased fruit is generally rigid and does not fall off; the disease of the leaf begins from the tip or edge of the leaf. The "V" shaped inward expansion, the lesions are brownish, with a dark and light ring pattern or no burrs; the stem infection is a small, water-soaked spot, and later develops into an elliptical or irregular shape. On the surface of the diseased parts, brownish brown mold layer was generated on the surface. Matters needing attention: 1, in recent years often seen a kind of atypical symptoms called ghost spots, the appearance of fruit outer edge of white, green in the middle, diameter 3 to 10 mm round spots, more foreign occurrence of hard-coated tomatoes, easy to Ulcers and scabs are confused. 2. The lesions on the leaves vary, with V-shaped, nearly circular, irregular, etc., with or without ridges. 3, moldy layer is easy to produce after the general disease, but sometimes can not see moldy layer. According to field symptoms, distribution, combined with meteorology and water and fertilizer management and other factors to make a preliminary diagnosis to help emergency control, but due to the diversity of symptoms, complexity, if necessary, should ask a professional to conduct indoor microscopy to confirm the diagnosis, and then Control measures have been amended. Endoscope Storage Cabinet,Endoscope Cabinet In Hospital,Cabinet For Endoscope,Innerspace Endoscope Storage Cabinets Taizhou Gaogang District Dixin Medical Equipment Co., Ltd. , https://www.dixinmedical.com