Technical points of vegetable pests in autumn and winter

In autumn, the autumn wind brings coolness and vegetables begin to enter the production season. In October, the climate in our district was characterized by cool morning and evening. During the day, the temperature was still high, the temperature difference between day and night was large, and the rainfall was significantly reduced. The first half of the month was accompanied by sultry thunderstorms, and the second half of the month was often foggy and dew. This month is a period of serious pest damage in autumn, and it is also a critical period for the prevention and control of various diseases and insect pests. All localities should do a good job in classifying diseases and insect pests according to local conditions. Vegetable pest prevention and control shall implement the plant protection policy of “prevention-oriented, comprehensive prevention and control”, adopt agricultural control as the basis, prioritize the application of physical and biological control, and if necessary, use comprehensive prevention and control measures for chemical control. Strict implementation of the guidelines for the use of pesticides and the use of standards for safe periods, so that residents can eat vegetables. Prevention and control of vegetable pests and diseases, mainly prevention, spraying control at the seedling stage or early onset (occurrence), use of pesticides, spraying every 2-3 times for 7-10 days, pesticides should be used alternately or in combination to increase the drug effect. First, the main pest control in autumn and winter 1, three diamondback moth, Spodoptera litura, beet armyworm moth all three kinds of pests, the most damaging summer and autumn every year, larvae can be in cabbage, vegetables, cauliflower, radish, ginger, sweet potato, corn When crops are harmed, affecting quality and yield, and the general pesticides do not kill, they must use pesticides that specialize in the treatment of nightflies. The agent can use 20% flubendiamide water dispersible granules (Rongge) 3000 times, or 5% Ruthenium Emulsion (above) 1000-1500 times, or 10% Pterostatin suspension (divided) 1000 -1500 times, or 1000-12000 times. 1. Thrips and roundworms can spread a variety of vegetable virus diseases, eat leafy juice, shrink the leaves, and die. The agent can be used for controlling 1000 times of 10% imidacloprid wettable powder, 7500 times of 70% imidacloprid water dispersible granules (Bixi 3), or 1000 times of 10% nitenpyram water solvent. 3. Liriomyza sativae (Derapidus platycota) is the second peak of the year in October, and can occur in crops such as eggplant, cucumber, tomato, green beans, and white kidney beans. The agent may use 50% ciprofloxacin wettable powder (latency g) 2500-3000 times. 4. Bemisia tabaci This is a kind of newly emerged pest in our district. It is a kind of polyphagous pest, and the host is very extensive. It can spread more than 70 kinds of viruses on 30 kinds of plants. At present, our area mainly harms tomato and red eggplant, leading to a significant reduction in yield or loss. The prevention method is to remove weeds or residual plants before the nursery, and completely kill the residual insect source. Nursery beds are covered with insect nets. The vegetable greenhouses are kept uninterrupted and yellow plates are used to kill. Chemical control should be carried out in a unified manner. The shed can be smoked with fumigant or 10 times the water solvent of nitenpyram 1000 times, or 20% acetamiprid water solvent (Lanning) 2000-2500 times, or 70% imidacloprid water. Disperse granules (Bi Xi 3) 5000 times, spraying must be uniform. 5, jumped armor has become a full-year hazard, nocturnal, must master the evening pest, in order to kill. Can choose 18.5% high efficiency cypermethrin EC (Fu Rui) 2500 times, or 2.5% Jinsheng EC 1500 times, or 52% high chlorine, insecticidal powder (broken) 1200 times, or 52.5% cyanogen chloride, chlorpyrifos EC ( Agricultural land) spraying 1200 times. Second, the main disease prevention and treatment in autumn and winter 1, damping-off disease, blight mainly occurs seedling stage. Before the nursery, the seedbed soil should be cleared. Use 50% carbendazim WP or 64% WP wettable powder 8-10 grams per square meter. First mix the powdered powder with a suitable amount of fine dry soil, and then spread one third of the amount of the soil to the bottom of the bed. The remaining two thirds of the soil cover the top of the sown seed, and finally the soil is reconstructed to complete the sowing. Bacterial blight can be sprayed with 5% Jinggangmycin 500 times, or 70% thiophanate-methyl powder 600 times, or 72.2% Precq water 400 times. Damping prevention can be done with 64% antivirus WP, 400-500 times, or 75% chlorothalonil WP, 600-800 times, or 72% WP wettable powder 800 times. 2. Viral disease The symptoms of the disease in the field were mosaic, fern leaf, and streak. The succession of the disease was severe. Prevention and control measures: Strengthen field management, clean the countryside, timely remove diseased plant residues, focus on avoiding flood control, prevent disease, prevent disease, and spray pesticides in time. In the early stage of disease, 0.5% mushroom proteoglycan hydrolyzate (antiviral) can be used 600-800 times, or 2% Ningnan toxin (200g) or 20% morpholinium WP ( Poisonous fly) 500 times spray. Of course, the kitchen environment should first be considered clean and sanitary, plant plants should also be clean, free of pests and diseases, no odor-based varieties. In addition, because the kitchen is easy to produce fumes, the plants placed should also have good anti-pollution capabilities, such as aloe vera, water tower flower, kidney fern, evergreen and so on. Perfect match: If you choose vegetable and fruit materials, make a flower arrangement, which is in harmony with the kitchen environment and also has a taste.

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