Harm: the main species are boxwood moth and boxwood moth. These two kinds of pests will overwinter in the soil in the form of pupae. In the next may or so, there will be insect eggs on the back of leaves, branches and gaps, and then they will hatch larvae. Then they will gather together to eat leaves, causing certain impact on the Euonymus. Later, from late October to mid November, they will enter the soil. Pupate for the winter.
Prevention and control: pay attention to ventilation management at ordinary times to avoid being in sultry environment for a long time. During larva activity from April to may, spray trichlorfon 1500 solution to kill.
Harm: after infecting this disease, it will harm the leaves and branches of the plant, hinder their growth, and the pests will suck the juice part, which will have a great impact on the growth of the plant.
Prevention and control: in addition to strengthening ventilation, it is also required to spray imidacloprid and pyrethroid alternately, with an interval of about 7-10 days, which can have a good effect.
Harm: when the larvae hatch, they will nibble the root and stem of the plant, which will affect the growth of the plant and cause the whole plant to be incomplete.
Prevention and control: do not use immature organic fertilizer at ordinary times to ensure good plant growth. It has phototaxis, need to install vibration type insecticidal lamp, so it can play the effect of trapping and killing adults. If the disease is serious, it can be treated with Corynespora Beauveria.
