Aphids and spiders are the common insect diseases of Echinacea. For aphids and spiders which are seriously damaged, 2000 times of dimethoate diluent can be used for spraying. Because red spider usually occurs on the back of the leaves, while aphid usually occurs on the top of young Citrullus, the spraying should focus on the back of the leaves and the top of the plants, and the front of the leaves should also be sprayed properly.
