Come and help me! My wisteria has a small bud, but it is full of black bugs! How to repel insects! !

When aphids occur sporadically, they can be gently brushed off with a brush dipped in water to kill them.

When aphids occur in large numbers, they need to be sprayed in time. There are many insecticides to control aphids, such as spraying 40% dimethoate or 80% dichlorvos emulsion 1000- 1500 times, or spraying 2.5% rotenone 1000 times, or 60 times limewater (with 0. 1% washing powder) and so on.

And:

First, garlic juice. Take 0.5 kg of purple garlic, soak it in a little water for a while, mash it to get juice, dilute it with water 10 times, and spray it immediately to control aphids, red spiders and scale insects. Pouring garlic juice into potted soil can prevent nematodes and earthworms.

Second, tobacco leaf water. Take 50g of tobacco leaves or 0/00g of tobacco stems and cigarette butts100g, add water1.5kg, boil for half an hour, or soak for one day and night, repeatedly knead with hands, filter with gauze, and spray 0. 1%-0.2% neutral washing powder to control aphids, red spiders, cicadas, thrips and thrips.

Third, pepper water. Take 50g of dried red pepper, add water 1 kg, and boil10-20min. After filtration, the clear liquid is sprayed to control aphids, red spiders and whiteflies.

Fourth, Chili water. Take 50 grams of Zanthoxylum bungeanum (or capsicum), add about 1 kg of water, boil for 30-40 minutes, filter and spray the plants to kill aphids.

Five, Pulsatilla boiled water. Take 500 grams of Pulsatilla bulb, add 5 kilograms of water, boil for half an hour, filter, spray flowers and kill aphids.