Pest and Disease Control:

Compared to other tree species, the planting of Zelkova is relatively simple, but it encounters very serious pests and diseases during its growth. Common pests and diseases of Zelkova include woodlice, red spiders, blight, sootiness, and leaf spot. Woodlice can be sprayed with a solution of 1000-1500 times, red spiders with a 1000 times emulsion, blight with a 2000 times powder rust control emulsion, and sootiness with a 500 times carbendazim.

Pine trees thrive along roadsides, slopes, and forest edges at elevations of 100-1,500 meters. They prefer sunlight, tolerate some shade, and are cold-resistant. They are suited to warm, humid climates and prefer fertile, flat land. They are not particular about soil conditions, have some drought resistance, and can tolerate waterlogged and infertile soil, making them highly adaptable.

Pine trees can be used as avenue trees, exhibiting strong resistance to sulfur dioxide and other toxic gases. The bark serves as raw material for papermaking and artificial cotton. The fruit can be pressed for lubricating oil. The wood is hard and suitable for industrial use. The roots, bark, and leaves, when used in medicine, have anti-inflammatory and pain-relieving properties, and can be applied externally for treating burns and scalds. The leaves can be used to make folk pesticides, effective against red spiders.

Distribution Range:

Distributed in Shandong (Qingdao, Laoshan), Henan, Jiangsu, Anhui, Zhejiang, Fujian, Jiangxi, Hunan, Hubei, Sichuan, Guizhou, Guangxi, Guangdong, and Taiwan, with some presence in Vietnam and Laos.