Methods for making green, harmless pesticides for flowers
Below are some pesticides that both prevent pests and treat diseases, do not pollute the environment, are easy to source, and simple to use. You may want to give them a try.
I. Pest control
In home flower growing, common pests include aphids, scale insects, whiteflies, thrips, leafhoppers, lace bugs, ants, and red spider mites.
(1) Ginkgo: Put ginkgo fruits into a mortar and mash them, add an equal amount of water, and filter to obtain the stock solution. When using, take the stock solution and dilute it with water at a volume ratio of 1:2, then spray to control aphids.
(2) Chinese arborvitae: Wash the berries of Chinese arborvitae clean and mash them, add water at a weight ratio of 1:5 and soak for 24 hours, then take the filtrate and spray directly to control leafhoppers.
(3) Peach: Take peach leaves and add water at a weight ratio of 1:6, boil for 30 minutes, then take the filtrate and spray directly to control aphids and other mollusks.
(4) Tung tree: Cut old leaves into pieces and add water at a weight ratio of 1:3-5; or use the fruit peel and add water at a weight ratio of 1:10; either way, soak for 24 hours, and the filtrate can control aphids.
(5) Chinese pulsatilla: Wash the whole plant clean, cut it into pieces, and mash it, add water at a weight ratio of 1:10, soak for 23 hours, or boil for half an hour; its filtrate can control aphids, leafhoppers, and lace bugs.
(6) Japanese bindweed: Wash the stems clean, cut them into pieces, and mash them, add water at a weight ratio of 1:5, soak for 24 hours; its filtrate can control aphids, leafhoppers, and lace bugs.
(7) Sun spurge: Cut the stems and leaves into pieces and mash them, add water at a weight ratio of 1:4, boil for 1-2 hours, then take the filtrate and spray to control aphids and red spider mites.
(8) Mint: Cut mint into pieces and mash it, add water at a weight ratio of 1:5, soak for 24 hours; its filtrate can control leafhoppers and lace bugs.
(9) Chili pepper: Add water to chili peppers at a weight ratio of 1:10, boil for half an hour, then take the filtrate and spray to control aphids and stink bugs.
(10) Tobacco: Take tobacco leaves and add water at a weight ratio of 1:10, soak for 24 hours, or boil for 1 hour, then take the filtrate and soak it thoroughly into the potting soil to kill ants in the pot; or take the filtrate, dilute it with an equal amount of water, and add a little soap to control aphids, red spider mites, thrips, and leafhoppers.
(11) Sichuan pepper: Add water to Sichuan pepper at a weight ratio of 1:10, boil it down to 5 parts of stock solution, then dilute with water at a volume ratio of 1:10 and spray to control whiteflies and aphids.
II. Disease control
In home flower growing, common diseases include powdery mildew, rust, gray mold, rot, leaf spot, and damping-off.
(1) Masson pine: Take pine needles and add water at a weight ratio of 1:2-3; boil for 2 hours until slightly gelatinous; take the filtrate and dilute with water at a volume ratio of 1:1 to control root rot.
(2) Rose of Sharon: Take rose of Sharon flowers and add water at a weight ratio of 1:10, soak for 24 hours; its filtrate can control root rot and damping-off.
(3) Ginger: Mash ginger and squeeze out the juice, then take the juice and dilute with water at a volume ratio of 1:20 and spray to control rot.
(4) Chinese chives: Mash Chinese chives, add water at a weight ratio of 1.6:10, then stir well and take the filtrate and spray to control rust and also aphids.
(5) Scallion: Mash scallions, add water at a weight ratio of 2:1.5, filter and spray to control downy mildew and also aphids.
(6) Garlic: Mash garlic, add water at a weight ratio of 1:1, stir well, then take the juice, dilute it with water at a volume ratio of 1:3, and spray to control powdery mildew, gray mold, and root rot, and also aphids, red spider mites, and other mollusks.
III. Others
(1) Baking soda: Baking soda (sodium bicarbonate) has the effect of inhibiting fungal growth. Spraying with a 0.1%-0.2% baking soda solution can control powdery mildew.
(2) Plant ash: Take plant ash and add water at a weight ratio of 3:10, soak for 49 hours, and after it clears, spray it on the plants to control aphids, gray mold, and the like.
(3) Mosquito coil: Light a mosquito coil containing pyrethroids and place it in the flower pot, then use a plastic cover to enclose the whole pot and fumigate for 50 minutes to 60 minutes to kill red spider mites.
(4) Fengyoujing (essential balm): Dilute Fengyoujing 600-fold to 800-fold and spray to control aphids, scale insects, red spider mites, and the like.
(5) Laundry detergent: Add water to laundry detergent at a weight ratio of 1:150, stir well, and spray once every 5 days for 2-3 consecutive sprays to control aphids, red spider mites, scale insects, whiteflies, and the like.
(6) Potassium permanganate: Use a 0.02%-0.03% potassium permanganate aqueous solution and spray once every 2-3 days; for severe cases, spray twice, to control powdery mildew.