Using pesticides to control flower pests and diseases not only pollutes the environment but is also costly and sometimes difficult to achieve results. Making your own homemade pesticides, on the other hand, is much more economical and time-saving, as the raw materials are readily available, preparation is convenient, and there is no pollution or harm to the environment. The following are some methods for preparing and using homemade pesticides for your learning.

soapy water

Soap water controls pests primarily by blocking their respiratory organs (spiracles), causing them to suffocate and die. Additionally, due to its low surface tension, soap water easily adheres to various pests, making it effective against many small pests such as aphids and scale insects. To prepare the solution, use 1 part soap and 50-60 parts water. First, shave the soap into thin slices with a knife and place them in a container such as a basin or bucket. Then, pour in hot water and stir. After dissolving and cooling, it can be sprayed.

laundry detergent water

Mix 1 part neutral laundry detergent with 150 parts water and spray the plants to kill aphids, spider mites, whiteflies, scale insects, etc. It is important to note that after killing the pests, immediately wash the leaves 2-3 times to clear the stomata on the leaves.

Tobacco Water

Nicotine and tannins in tobacco leaves have a good killing effect on pests and are unlikely to cause pests to develop resistance. Take 100 grams of tobacco leaves, add 3 kilograms of water, soak for 24 hours, repeatedly rubbing them several times during soaking. After removing the residue, filter, or boil for half an hour and then filter. Add 0.1% to 0.2% neutral detergent to the filtrate, stir thoroughly, and then spray. It has a good control effect on aphids, spider mites, whiteflies, leaf rollers, thrips, stink bugs, and many other leaf-eating pests.

Chili water

Take 100 grams of dried chili peppers (preferably spicy varieties like bird's eye chili), add an appropriate amount of water, boil for 10-15 minutes, filter, and spray on the flowers and plants. This can control pests such as aphids, spider mites, and whiteflies.

Peach Leaf Water

Boil 1 kg of peach leaves in 5 kg of water for half an hour, filter, and spray the filtrate to control inchworms, aphids, and soft-bodied pests. Dry peach leaves, grind them into powder, and bury them in the soil to control underground pests such as grubs, termites, and mole crickets.

Tobacco lime water

Take 500 grams of tobacco leaves and 500 grams of quicklime, add 30-40 kg of water, and soak hot or cold. The extract can control various pests that harm flowers, such as aphids, thrips, psyllids, and flea beetles. The tobacco-lime solution will achieve its best fumigation and contact killing effect within 5 hours after application.

Thunder vine

Tripterygium wilfordii, also known as yellow vine root, is rich in five alkaloids. It has anti-feeding, stomach poisoning, and oviposition-repelling effects on various pests affecting flowers, and is effective against stink bugs, scale insects, cucumber beetles, beet armyworms, and other insects. Generally, the root bark is first dried, ground into powder, boiled with water until sticky, and then diluted with water to the desired concentration for spraying. Alternatively, 500 grams of root bark powder can be mixed with 4-5 kg ​​of wood ash and sprinkled on the flowers, or 4.5 kg of root bark powder can be mixed with 500 grams of tobacco powder and sprinkled on the flowers.

Castor water

Crush 100 grams of castor seeds, soak them in 1 kg of water for 2-3 hours, filter, add a small amount of neutral detergent and 6-8 kg of water. Stir well and spray to control aphids, leafhoppers, beetles, and other pests. Dry castor leaves and stalks, grind them into powder, and bury them in the soil or in pots to control termites, grubs, mole crickets, and other underground pests.

Garlic water

Crush purple garlic, extract the juice, and dilute it 10 times with water before spraying. This can control aphids, spider mites, scale insects, gray mold, and root rot. Pouring the juice into the soil can control earthworms and root-knot nematodes.

Ginger water

Crush fresh ginger to extract the juice, dilute the juice with water 10 to 15 times, and then spray it. This can prevent and control sooty mold and rot in various flowers, and inhibit the germination of spores of various pathogens that harm flowers, thus controlling the occurrence of diseases.