一、引言 近些年来,我省一些桔区对柑桔树体伤口颇为忽视,听其自然,不加保护,为病虫滋生提供条件,其严重者引起枝干腐朽,成为树势衰退、树冠残缺、产量和品质下降的原因之一。生产上曾采用接蜡、水柏油等保护伤口,然接蜡原料紧张,田间使用时容易凝固,液体接蜡制备手续较烦,调制时均要消耗能源。水柏油使用简便,价格低廉,然易粘沾桔农衣眼,且因其含石油足以损坏木质组织,对伤口愈合不利。 此外,生产上对初发或病势中度的树脂病患部常采用刮除病部,涂敷托布津、鲜牛粪、波尔多浆等治疗手术,虽具有控制病势, I. INTRODUCTION In recent years, some orange areas in our province have neglected the wounds of citrus trees, listening to their natural and unprotected conditions for the breeding of pests and diseases. , One of the reasons for the decline in production and quality. The production of wax, water asphalt and other protection of the wound, then wax raw material tension, easy to solidification field use, liquid wax preparation procedures more trouble, the modulation will have to consume energy. Water asphalt is easy to use, low cost, easy sticky orange peel eyes, and due to its oil enough to damage the wood tissue, wound healing adverse. In addition, the production of the initial or moderate disease in patients with resin often scraped disease department, coating Topaz, fresh cow dung, Bordeaux and other surgical treatment, although with control of the disease,