棕榈红棕象甲防治技术研究

[目的]及时有效地控制棕榈红棕象甲在广西南宁的发生与为害。[方法]在广西南宁展开棕榈红棕象甲分布及为害情况的调查,同时进行传播途径的检测,再进行灯光诱杀试验、人工结合药剂防治和药剂防治试验。[结果]目前南宁市70%的苗圃及景区已有红棕象甲分布;在已栽种的棕榈科植物中,受害品种达80%。带虫棕榈苗木输出是扩散为害的主要途径。采用频振式诱虫灯诱杀成虫,有效可行。采用药剂喷施寄主喇叭口（即心叶处）,然后用老叶鞘或农用薄膜包扎寄主茎杆的叶鞘,可达到防治红棕象甲的目的。[结论]对红棕象甲的防治策略,应以防治树苗和树龄在10年以下的植株为主;对高龄树和高大植株,必要时采用药剂挑治,综合防治。

Test on Control Technology of Rhynhophoras ferrugineus Fabricius

[Objective]The study aimed to effectively control the occurrence and damage of Rhynhophoras ferrugineus Fabricius in Nanning City,Guangxi in time.[Method]The investigation on the distribution and damage of Rhynhophoras ferrugineus Fabricius was conducted in Nanning City,Guangxi.Its disseminating ways were checked and then the experiment of the light trap,the experiment of the artificial control combined the pesticide control and the experiment of chemical control were conducted.[Result]The investigation indicated that there had distribution of Rhynhophoras ferrugineus Fabricius in 70% plant nurseries and the scenic area in Nanning City at present.Among the planted Hemp palm plants,the harmed varieties was up to 80%.The output of palm nursery stock with the insect was the main way which diffused the damages of pest.The adults were trapped by the frequency trembler lamps,which was effective and feasible.The seedling bellmouth of the post was first sprayed by the pesticide,and then the sheath of post stem was wrapped up with the old leaf sheath or the agricultural film,which could reach the objective of controlling Rhynhophoras ferrugineus Fabricius.[Conclusion]As for the prevention strategy on Rhynhophoras ferrugineus Fabricius,it should prevent and control the plant with the seedlings and the tree age being in 10 year primarily.As for the advanced age tree and big adult plant,it should implement the selective control when it was necessary,and the integrated control should be implemented on the prevention measure.