First, the eradication of aphids should start from the wintering period of flowers, which can get twice the result with half the effort. If we only rely on the spring and autumn when aphids are the most harmful, the control effect is not significant.
Second, strictly check the newly introduced flower seeds and seedlings to prevent the invasion of new pests from other places, disinfect the soil and old flower pots and kill the remaining eggs.
Third, combined with pruning, the residual flowers and diseased branches and leaves hidden by aphids or eggs will be completely removed and burned centrally.
Fourth, different varieties of flowers have different insect resistance, so we should choose insect-resistant varieties, which can not only reduce the harm of aphids but also save the cost of medicine.
5. When a small number of aphids are found, brush them with a brush dipped in water, or rotate the potted flowers under tap water, which not only kills aphids, but also washes the leaves, which improves the ornamental value and promotes the respiration of the leaves; If conditions permit, natural enemies such as ladybugs and lacewings can also be used for control.
Six, found a large number of aphids, should be isolated in time, and immediately choose drugs or indigenous methods to eliminate pests, specific measures are as follows:
1. Prepare tobacco leaf water according to the ratio of 1: 15, soak for 4 hours and then spray.
2. Prepare a solution of washing powder, urea and water according to the ratio of 1:4:400 for spraying.
3. Use Zhongwei Happy Forest (Cyanide Marathon) Hua Le 20% diluted 1000- 1500 times, and spray it on the leaves.
4. Myzus persicae should be covered with wax powder, and 1‰ neutral soapy water or washing powder should be added when applying any medicine.