摘要
从产地引入象甲，研究它在高海拔低纬度———昆明的生活习性，经安全性、适应性、控制效果的试验研究，证实水葫芦象甲对２３个科、４６种植物不产生危害，只取食水葫芦，是单食性昆虫。象甲对水葫芦重量控制率平均为５４．３％，株高控制率为４２４％，根长控制率为１９２％，叶片控制率为１０６％，植株分蘖控制率达３２％。象甲在昆明具有良好的生物学适应性。对控制滇池水葫芦疯长，恢复生物多样性、保持生态平衡具有重要价值。
By introducing waterhyacinth weevil (Neochenita eichhorniae) to study its living condition in Kunming of high elevation and low altitude area, Kunming and also safety, controlling effect and adaptability, it is demonstrated that waterhyacinth weevil is a kind of insect with single feeding habit, which only feeds on waterhyacinth without endangering 46 specieces of plants in 23 families.The average weight controlling rate of Neochenita eichhorniae to waterhyacinth is 54.3%, height controlling rate is 42.4%, root length controlling rate is 19.2%, leaf controlling rate is 10.6%, plant tillery controlling rate is up to 32%. Neochenita eichhorniae has good adaptability in Kunming, which have important value to control the wild growing of waterhyacinth in Dianchi, rehabilitate biodiversity and keep ecological equilibrium.
出处
《中国环境科学》
EI
CAS
CSSCI
CSCD
北大核心
1997年第5期446-448,共3页
China Environmental Science
基金
世界银行贷款国内配套资金项目
关键词
象甲
水葫芦
杂草
Neochenia eichhorniae, waterhyacinth,wild growing.
