Early winter vegetable seedling management pest control
Hand Held Nebulizer,Handy Nebulizer Machine,Walker with Wheels Better Medical Technology Co., Ltd. , http://www.fshospitalbed.com
November 15 16:06:57, 2018
Since the winter, the temperature difference between day and night is large, which is conducive to the normal growth of vegetables in general, but the cold air has begun to affect Shandong, and certain pests and diseases have become more serious. Strengthen the management of vegetable seedlings in winter and move it into the greenhouse in time. The central task of greenhouse vegetable seedling management is to prevent insect pests and prevent leggy, to cultivate strong seedlings: (1) to leave the plants in a timely manner, generally when 2 leaves and 1 heart, in another seedbed or to use a nutrition seedling to plant once; 2 to control the fertilizer and water management, and to prevent seedlings from growing ;3 Pay attention to the shade under strong light;4Mainly prevent and treat root diseases, available for use of methyl uncle or anti-disease. On the ground, pests and diseases such as spotted fly, aphids, and red spiders can be controlled by a sea-keeping pest control agent. When the leaves 5 to 7 leaves, Solanaceae can be moved into greenhouses: 1 deep-thinning and whitening prior to transplanting; 2 Applying basic fertilizer, covering the mulch, bar-based fertilizer, increasing application of compound fertilizer, doing sulphonization, basal fertilizer, mulch To flatten the squat surface; start transplanting in late March and early November; 4 cover the greenhouse with an average temperature of about 20°C. Cabbage downy mildew and diamondback moth and other hazards aggravated, we must pay attention to prevention and treatment. Downy mildew occurs severely on Chinese cabbage every year, and the foggy and humid weather is an external factor that induces the disease. In the cultivation technique, sorghum deep ditch is used, and Kelu or Anke manganese zinc is used to spray twice in the early stage of the disease. . Plutella xylostella, aphids, and axillae were mixed and mixed with Bt1000 twice as much as 3,000 times as much as Garethbisch and mixed. At present, Tianli II, Haizheng Exterminator, Ruijinte and so on have good efficacy against Plutella xylostella and Pieris rapae. Bean cakes such as kidney beans, green beans, green soybeans, and other leguminous vegetables were used as a pest control strategy. The prevention and treatment strategy was to adopt the strategy of “treating flowers without treatment and governing rootless flowersâ€. The application of 40% chlorpyrifos 600 to 800 times and 5 can be used to catch the initial flowering period of the beans. % Ruijin special 2,500 times. Due to the large amount of insects in the petals of the floor, spraying should be focused on when spraying. Control of cucumber, loofah, bitter gourd and other melons of vegetables and melons: The young larvae feed on the leaves in the back of the leaves, and after the third instar, they take the leaf curls and hide them to feed only leaves. Before the third instar larvae, 5% fipronil was used to control 1500 times, focusing on the back of the leaves. Meal and vegetable powdery mildew damage prevention: You can choose to use good Lectra, DuPont Fuxing, Shigao, oil emulsions, etc. to control.