Downy mildew disease, leaves, leaves or leaves will appear on the back of the water immersed lesions, particularly evident in the morning, the lesion gradually expanded, limited by the veins, showing a polygonal brown or yellow brown patches, when the humidity on the back of the leaf or Leaves grow dark gray mold layer, late lesions or contiguous lesions, resulting in leaf margin curling dry, severe patches of a yellow, mostly in the upper leaves of cucumber. Available 72.2% Propocarb (Precise) Aqueous 600 times, 69% Manganese Zinc (Anketone) Wettable powder 800 times, 60% Manganese Fluoride (Extinguished) WP 700 times Liquid spray control.
Brown spot lesions appear brownish brownish green, slightly roundish, 6-12 mm in diameter. Most of the lesions are limited by veins, irregular or polygonal, and some are gray to gray in the middle. Brown, grayish-yellow mildew, severe lesion integration, dead leaves. However, the lesions of brown spot do not gradually expand with the development of the disease, only the size of rice grains, and most occur in the upper leaves of the plant. Can be used 50% carbendazim WP 500 times, 75% chlorothalonil (Dakkoning) WP 600 times, 78% MnZn (Cobo) wettable powder 600 times spray control.
Bacterial leaf spot disease is in the form of fresh green water dip spot at the beginning of the disease. It gradually changes to light brown, the lesion is limited by veins and is polygonal, gray-brown or brownish, and when the humidity is high, the leaves overflow with milky white muddy water droplets. Staphylococcus pus, dry after the white marks, the disease is brittle and easy to perforate. Available 47% spring king copper (Garenong) WP 700 times, 78% MnZn (Cobo) WP 500 times or 40% WP WP 600 times.
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