Disease and Insect Symptoms and Drug Control

One, quail, also known as the root worm (the adult larvae larvae). l. Symptoms: adult lice of crickets are oligophagic and harmful to lily plants. When larvae are harmed, bulbs or seedlings of leeks etc. are invaded and the bulbs are smashed into many holes; rot is caused and the upper leaves are yellow, wilting, causing Lack of seedlings and ridges, even to death into a film, if not timely prevention and control will reduce the production of Hao Lai 50% -70%, 2, drug control. 48% Loester Ben EC 375-750 times, 40% phoxim EC 750-1500 times, 25% trichlorfon powder, 1.5 mu -2 kg per acre dusting. 80% Trichlorfon Soluble Powder 1000 times Liquid dripping or spray coarse fog. Second, gray mold 1. Symptoms: Botrytis cinerea belongs to Botrytis cinerea, semi-known bacteria industry, direct bacterial diseases. It mainly affects the leaves. At the beginning of the disease, the leaves are white to gray-brown dots on the surface, and the front is more than the quilt. Most of the lesions developed from the tip of the blade to a fusiform or elliptical lesion with a size of 0.5--2 mm X 0.5- 7 mm and a gray-brown bag. When dry, the leaves are coked, and when the leaves are wet, the surface of the lesions is densely covered with cinereus cinereus, and it is wet and rot. In severe cases, lesions gang into knots, resulting in the upper part of the leaves or the entire leaf withered, and sometimes rot from the cutting edge of the leeks. The water stains were light green lesions at the beginning, and the semicircle formed a “V” shape. The diseased tissue is yellow-brown and densely greenish-yellow fungi. 2. Drug Control: 10% Sucroliming aerosol 10- to 15-day fumigation once every 669 square meters 250g, 50% fast Keling wettable powder 1000-1500 times liquid, 50% thiophanate-methyl wettable powder 400 - 500 times liquid. 50% carbendazim. Chlorothalonil aerosol 250g per 667 square meters, divided into more than six points of the drug alone or alternately every 7 days. III. Epidemic 1. Symptoms: It belongs to the flagellin subphyla, Phytophthora fungal disease, and the whole plant suffers when the leek is infested. The damage of the leaves starts from the lower middle part, and the dark green water is immersed. When it expands to about half of the leaves, When the whole leaf turns yellow, sagging, soft rot, and when the air is wet, the disease minister sparsely suffers from false stems. More than brown soft rot in the root plate, grow gray rot, the leaves fall off easily. The internal tissues became pale brown, and the roots became diseased, brown rot, root length decreased, root life shortened, and the growth potential of the shoots weakened. 2, drug control. 50% quick-king. 1500-2000 times liquid. 50% return due to 1000-1500 times fluid. 70% Mancozeb 350 times, 75% White Bacteria 500 times. 50% carbendazim, thiophanate-300 times. 25% of the poison 800 times, 64% anti-virus 500 times. 72% Prec 800 times, etc., irrigated or sprayed, 7-10 days once, even against 2-3 times, the above drugs pay attention to rotation. The above prevention techniques can be based on local conditions. Based on local conditions.

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