Can rapeseed be sprayed with insecticides in winter, and should insecticides be sprayed before plant

Updated on healthy 2024-07-28
6 answers
  1. Anonymous users2024-02-13

    It is not recommended, if there are insects, it is recommended to physically remove insects, if there are no insects, there is no need to play deworming drugs, because deworming drugs are also harmful to plants.

  2. Anonymous users2024-02-12

    When planting vegetables, it is necessary to kill insects in the soil in order to prevent bacteria or insect eggs from remaining in the soil. Yes, but not limited to the use of pesticides.

    Clause. 1. Sunlight disinfection method.

    Spread the prepared soil on clean concrete, wood or iron plates, spread it evenly, and expose it to the sun for 3-15 days, which can kill a large number of bacteria, hyphae, eggs, pests and nematodes.

    Clause. 2. Steam disinfection method.

    Put the nutrient soil into a steamer or pressure cooker and heat it to 60-100 for 30-60 minutes (the heating time should not be too long, so as not to kill the beneficial microorganisms in the fertilizer and affect the normal growth and development of flowers). It kills most bacteria, fungi, nematodes, and insects and deactivates most weed seeds.

    Clause. 3. Simplify the disinfection method.

    If the new soil has not been planted with vegetables, the vegetables planted in the first year (such as tomatoes, eggplants, peppers) are called new stubble, and there is not much toxicity in the soil. In the second year, the same vegetable varieties can be replanted, which is called stubble, and has little impact. However, in order to reduce the adverse effects, 10 days before planting next year, it should be watered once with 500 times the methyl tobuzine or carbendazim solution and let it dry.

  3. Anonymous users2024-02-11

    Answer: After the planting site is tidied up, directly plant garlic or leeks, after the young leaves grow, use human urine to match the appropriate amount of water to drench garlic or leeks, sprinkle plant ash on the compartment to prevent pests and diseases, or soak the plant ash with water, and spray the leaves with appropriate water to prevent pests and diseases. Before planting vegetables, the fields are treated with insecticides and fungicides

  4. Anonymous users2024-02-10

    Generally, vegetable plots need to be cleaned regularly, and general herbicide forging is a must, and it is necessary to choose the right one.

  5. Anonymous users2024-02-09

    Common insects in vegetable fields include cabbage worms, red spiders, aphids, and whiteflies. During the maintenance period, if you want to get rid of insects in the vegetable field, you can spray the vegetables. Spray vegetables with superphosphate, dimethoate, acetamiprid, anti-aphid or imidacloprid and other agents, spray once in 7 10 days, and spray 2 or 3 times in a row to get rid of pests.

    If there are fewer insects in the vegetable field and they are in the larval stage, you can prepare an insecticidal solution to remove insects. During the pest control period, you can prepare your own vinegar solution, washing powder, soapy water or cigarette butt water, etc. Spray the prepared solution on the vegetable plants, generally 5 7 days can be sprayed 1 time, 2 3 times after the insect in the vegetable field can be removed.

    If there are not many insects in the vegetable field, you can manually catch insects and carry out artificial protection。Manually remove insects such as cabbage worms or red spiders on vegetables, and spray an appropriate amount of sterilization solution on the vegetables after removal. In the later stage of maintenance, it is necessary to do a good job of protection and build an insect-proof net for the vegetable field, which can avoid the infestation of vegetables by insects.

    Main types of insect pests of vegetables and applicable pesticide varieties:

    1. Diamondback moth, cabbage worm and other pest occurrence crops: cruciferous vegetables. Applicable pesticides: Caixi, Abafenjing, Ruijinte, Weiling Anda, Avermectin, Miman, Thousand Worms.

    2. Noctuidae crops: leafy vegetables, sweet potatoes, taro, etc. Suitable pesticides: Lesben, moth special killing, removal, fluorinylurea, green worm once clean, chlorine, strong killing, fast spirit.

    3. Aphids, whiteflies Occurrence crops: all kinds of vegetables. Applicable pesticides: Actet, imidacloprid, louse aphid, quick killing, aphid sweeping, aphid attacking, insect cleaning.

    4. Jumping crops occur: cruciferous vegetables. Applicable pesticides: Amar, Ruijinte, a kill, a good clear.

  6. Anonymous users2024-02-08

    Hello, glad you raised your question. Vegetables that have been used with high-efficiency insecticides in life are generally about 73 hours old, and they can be used after washing with hail, so there is no need to worry too much about it, and it will not bring uncomfortable reactions to the body. Pay attention to personal hygiene and cleanliness in life, strengthen self-protection awareness, clean food in a timely manner, avoid harm from bad factors, try to eat it after a week after spraying insecticide, and be sure to clean it before eating, so that it is safer and more hygienic.

    The above is my reply, I hope I can help you and wish you a happy life.

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