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Growing vegetables at home without a field, one trick teaches you to grow pollution-free, safe-to-eat vegetables
20 years ago, we held hoes in our own small yards, growing tomatoes, cucumbers, green beans... watering, weeding, catching bugs... watching them sprout, flower, and fruit, and picking a handful of vegetables was enough for a family meal. 20 years later, high-rise buildings...
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Pollution-free control methods for orchid pests and diseases
1. Washing powder and detergent: Washing powder can dissolve the waxy coating of scale insects and at the same time form a layer of foam that wraps around the insect body, causing the scale insects to suffocate and die. Washing powder solution can control some pests and diseases. Control method: dissolve a small amount of washing powder in warm water, then dilute with water to a 1000-fold solution and spray the orchid plants; it can kill aphids, whiteflies, red...
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