Using pesticides to manage plant diseases and insect pests can easily harm the environment. To offer a more eco-friendly alternative, we’re sharing four effective methods for preventing and controlling pests and diseases in flowers and trees.
First, the spraying method. (a) Soak 0.5 kg of wood ash in 2.5 liters of water for 24 hours, then use the filtered liquid to spray plants. This solution effectively kills aphids on plum, rose, and pomegranate trees. (b) Spraying a 0.1% baking soda solution on roses, chrysanthemums, impatiens, hibiscus, and cineraria helps prevent powdery mildew, with an effectiveness rate of up to 80%. (c) Applying a 20% urea solution every 10 days, or even two to three times, not only eliminates pests like locusts and red spiders but also makes leaves shiny and flowers more vibrant.
Second, the rubbing method. (a) Gently rub camellia leaves with a cotton ball dipped in vinegar to eliminate scale insects and help damaged leaves regain their green color. (b) Repeatedly brushing orchid leaves with alcohol can remove scale insects effectively. (c) If a bonsai branch shows signs of rot, carefully scrape off the affected area using a sterilized blade treated with iodine, then apply iodine to the wound daily for 7 to 40 days to prevent further decay.
Third, the fertilization approach. (a) Mixing a small amount of silicon fertilizer into regular plant food can strengthen the epidermal cells of flowers, making them more resistant to pests. (b) Regularly applying wood ash significantly reduces the occurrence of gray mold in peonies, tulips, and cyclamens while also improving flower color and density.
Fourth, the injection method. Woody plants are often attacked by stem borers such as longhorn beetles, giardworms, and wood-boring moths, which can hollow out branches. To combat this, inject 20-30 ml of 20% ammonium solution into the pest tunnels during the larval hatching period, early adult emergence, or winter dormancy. After injection, seal the holes with clay or wax to prevent re-infestation.
By using these natural and non-toxic methods, you can protect your plants without harming the environment. These techniques are easy to implement and have proven results, making them ideal for both amateur gardeners and professional horticulturists.
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