Why do Milan leaves curl?

Milan leaf curl belongs to pests and diseases.

Spray 15% quicklime water or carbendazim and potassium permanganate water solution frequently for sterilization. High temperature in rainy season from July to August is the high incidence period of leaf spot and powdery mildew, and lime-sulfur mixture with 0.3 ~ 0.5 degree can be sprayed in Pomei, once a week, 2 ~ 3 times. If longicorn larvae are found in June and July, the branches should be cut off immediately. Other leaf-eating pests will be sprayed with monocrotophos 800 times as soon as they are found, which can kill eggs and larvae.

Milan (Latin name: Aglaia odorata Lour) alias: Four Seasons Milan, Broken Milan, Meliaceae, Michelia evergreen shrub or small tree; It is a small evergreen tree with porous orders, which adapts to warm and humid climate conditions, and adult plants need sufficient sunshine. Its branches and leaves are dense, its leaves are green and bright, and it blooms many times a year, and it is most prosperous in summer and autumn. When it blooms, it smells like an orchid. Stellate rust scales are often found at the top of branchlets;

Pinnate compound leaves alternate, with yellow flowers, fragrant flowers, about 2 mm in diameter, bisexual pedicels slightly short and thick, calyx 5-lobed, petals 5, rectangular; Berries are nearly spherical, long 10- 12 mm, and the flowering period is between summer and autumn.