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白腊,落叶乔木。喜光稍耐荫,喜湿润气候,耐寒、对土壤要求不严,耐修剪。白腊树形体端正,树干通直,枝叶繁茂而鲜绿,秋叶橙黄,是优良的行道树和遮荫树。 调查近几年我县白腊树的病害,提出以下防治方法。 一、白腊日灼病 1、症状。白腊日灼病害是由阳光直射到树干和地面高温使树皮受到灼伤,而引起的非侵染性病害。其多发生在3年以上的白腊树上。表现症状为靠近地面的树干中上部,最初产生块状,条状褐色斑块,随后斑块开裂,树皮和木质部分离,后脱水干枯,植株患病严重时,叶子失水萎蔫下垂,颜色由绿而变成土黄色死亡,外界气温高时,叶子大量失水而变焦死亡。
White wax, deciduous trees. Hi light a little shade, hi humid climate, cold, the requirements of the soil lax, resistant to pruning. White wax tree body is correct, straight trunk, lush foliage and fresh green, yellow autumn leaves, is an excellent street trees and shade trees. Investigation of the disease in our county white wax tree in recent years, put forward the following prevention and treatment methods. First, the white burn disease 1, symptoms. Balm Sunburn is a non-invasive disease caused by burns of the bark from direct sunlight to the trunk and high ground temperatures. Occurred more than 3 years in the white wax tree. Symptoms of the trunk near the ground in the upper part, initially produced massive, strip brown patches, followed by plaque cracking, bark and xylem separation, dry dehydration, plant serious illness, the leaves wilted wilt sagging, the color from Green and become khaki death, the outside temperature is high, the leaves a lot of water loss and zoom death.