樟树溃疡病综合防治研究

Study of integrated control of camphor tree (Cinnamomum camphora) canker

樟树溃疡病菌为弱寄生菌,主要从植株伤口和衰弱组织侵入。在防治上应采取以营林技术措施为基础,以减少创伤,提高植株抗病力为主的综合防治措施;即(1)选用健壮无病苗木;(2)选择土壤肥沃、湿润、深厚、排水良好的中性或微酸性土壤的林地造林;(3)避免植株机械损伤和日光灼伤;(4)在子囊孢子释放初期喷施70%甲基托布津1000倍液、40%多菌灵1000倍液、70%代森锰锌500倍液或等量式波尔多液等药剂保护;植株发病后和整枝伤口处,喷施70%甲基托布津1000倍液或40%多菌灵1000倍液等药剂。

The canker pathogen fungi of camphor tree(Cinnamomum camphora) invades through wound and weakened tissue and is a weak parasite.The integrative control measures of this canker of camphor tree must mainly be to reduce the wounding and to increase the resistance of the plant based on the silviculture technology as follows:(1)Select strong and non-disease seedlings.(2) Chose fertile,moist,deep,well-drained,and neutral or light acid soils for a plantation.(3) Protection from the machine injury and sunlight.(4) Spray fungicides using 70%thiophanate-methyl of 1?000 times, 40%carbendazol of 1?000 times and 70%mancozeb of 500 times, or the equivalent Bordeaux mixture at the initial stage of the releasing ascospore,or spray the fungicides 70%thiophanate-methyl of 1?000 times, 40%carbendazol of 1?000 times at the onset of the plant disease or cut branches.