Harmless Methods for Controlling Vegetable Diseases and Pests
Abstract: Knowledge about fruits and vegetables, methods for harmless control of vegetable diseases and pests, detailed introduction is provided below.
In vegetable production, when using pesticides to control diseases and pests, one must be cautious. Any negligence can lead to environmental pollution and even endanger the lives of humans, animals, and poultry. Here are eight harmless methods for controlling diseases and pests, for the reference of vegetable enthusiasts everywhere.
One: Plant-based or Low-toxic Agent Control Methods
1. Peach leaf treatment for aphids: Use 5 kg of peach leaves, 50 grams of quicklime, and 75 liters of water, soak for 24 hours, filter and spray evenly. This method not only controls vegetable aphids but also treats bed bugs and fleas in animal shelters.
2. Chili juice treatment for aphids and leaf rollers: Crush 0.5 kg of chili and add 30 liters of water, soak for 24 hours, filter and spray evenly.
3. Wild wormwood solution for aphids and red spiders: Use 0.5 kg of wild wormwood and 10 liters of water, soak for 10 minutes, filter and spray evenly.
4. Laundry detergent treatment for aphids and red spiders: Spray with a 1% neutral laundry detergent solution.
5. Tobacco powder treatment for vegetable aphids and yellow fleas: Grind tobacco into fine powder and mix with a small amount of lime powder to spread.
6. Fresh cow urine treatment for aphids: Use 30 liters of fresh cow urine per mu, mix with 30 liters of water, and spray evenly on the back of the plant leaves from 8 am to 6 pm. After 24 hours, the aphid control effect reaches over 90%.
Two: Protection and Utilization of Natural Enemies
Spiders, ladybirds, mantises, dragonflies, grass caterpillars, ground beetles, frogs, bats, swallows, geckos, and parasitic bees are natural predators of many pests and should be protected and utilized.
Three: Intercropping for Pest Repellent Methods
Some plant secretions can repel certain pests or diseases. Mixed planting or intercropping can help control adjacent diseases and pests. For example, planting cruciferous vegetables like Chinese cabbage with lettuce or mint can repel cabbage caterpillars; planting garlic with rapeseed can repel vegetable aphids; planting garlic with cotton can repel cotton aphids; planting tomatoes with kale can repel kale pests; planting onions with peas can prevent pea black spot disease; planting leeks with Chinese cabbage can prevent soft rot disease in Chinese cabbage.
Four: Repellent and Killing Methods
Some pests are attracted to light, while others are attracted to chemicals, sugar, vinegar, alcohol, and weeds. These traits can be used to lure and kill pests. For example, installing black lights, high-pressure mercury lamps, and frequency-killing lamps over fish ponds can turn a large number of pests into fish feed; using piles of weeds to attract and kill crickets; using sugar, vinegar, and alcohol to kill ground beetles; planting a few castor plants in peanut fields can cause ground beetles to die from eating the castor stems and leaves.
The above information about harmless methods for controlling vegetable diseases and pests is provided for your comprehensive understanding and reference.