Generally, aphids gather in buds, leaves and twigs to suck sap, forming the withered and deformed parts of plants. The excreta of aphids in Fuzhou may also induce coal pollution. Aphid can be said to be the enemy of every kind of flower. If the environment is a little bit improper, it is easy for aphid to get into the hole.
When there are a small amount of aphids on the leaves of Campanula, it is recommended to dip a rag in soapy water to wipe off the insects or wash them off with a gentle water flow. When there are many aphids, spray chemicals once a week, 2-3 times in succession, which has special effect on the scale insects and aphids.
Red spiders usually gather on the back of leaves. It's hard to detect them without careful observation. They prick and suck leaf juice on the back of leaves, often forming discoloration and even bending of leaves. When you find the spider, its leaves are yellow and wilting. More leaves wilt, and the flowering will be affected, because the photosynthesis of the plant is weakened, the accumulated nutrients are reduced, the color of the flower is dim, and it will wither slowly.
It can be sprayed with 40% dicofol and 1000 times water.
Young buds, leaves, flowers and fruits are eaten on adult or nymph plants. The damaged plants grow slowly, the tender leaves bend after being eaten, and the shoots and flowers wither after being damaged.
In the early stage of the disease, 25% rotein emulsion or 40% dimethoate 800-1000 fold solution can be used. Once a week, three to four times in a row, in turn, the effect is significant.
