Small evergreen shrub of orange tree, about 3 meters high. Branchlets are thinner, glabrous and usually spiny. It blooms in spring and matures in February 10 ~ 10.
Features: Evergreen seasons, dense branches and leaves, neat tree posture, fragrant flowers in spring, heavy yellow fruits in autumn and winter, and extremely beautiful yellow and green.
Most of them occur after the spring shoots mature and the leaves turn green in summer and autumn. Prevention and control methods: (1) Strictly implement the quarantine system to prevent the entry of diseased seedlings and scions and insects that spread the disease; ⑵ Establish a disease-free nursery, select disease-free mother trees as propagation materials, and plant disease-free seedlings; (3) Strengthen the management of soil, fertilizer and water in the orchard, strengthen the tree potential and improve the disease resistance; ⑷ Control of infectious insects-citrus psylla. Spraying 800 times of 80% dichlorvos EC or 40% omethoate 1000 times at each germination stage; 5] Dig out the diseased plants in time and burn them.