农学学报2012，Vol.2Issue(1)：12-17,6.
外来入侵烟粉虱生物特性及其种群数量变动规律研究
Study on Biological Characteristics and Population Dynamics of Whitefly （Bemisia tabaci） in Growing Vegetables in the Suburbs
摘要
Abstract
In order to explore population dynamics of whitefly （Bemisia tabaci） in growing vegetables in the suburbs, and improve monitoring and control techniques, adult whitefly （Bemisia tabaci） were reared and trapped with oil painting yellow plastic plates during 2005-2010. It showed that annual population dynamics of whitefly might be described by bimodal curve, the summer peak usually appeared during mid-May and early September, and the autumn peak usually came between mid-October and late November. The adults could live in greenhouse for one year and had an overwintering rate of 20% in the open. Between the year to year movement of whitefly could be described by bimodal curve and the curve model was M o. = 312.21N 2 -6187.1N ＋ 30787 （ n=5 , r=0.9834 ＊＊ ） and M g. = 564.7 N 2 -10506N ＋ 49013 （ n=5 , r=0.9967 ＊＊ ） . There were four main factors affecting whitefly population, i.e., base population, climate, farming system and flood inundation, and the most important factor was temperature. The whitefly population density （ M ） was changed with temperature （ T ）, the linear relationship could be described by the model M=0.607T-4.0645, n=36; r=0.6826 ＊＊ , and the curve model was M = 0.0071T 2 ＋0.3513T-2.2188, n=36; r=0.6846 ＊＊ . When 10 days ’ average temperature was between 8-10℃ , the whitefly population was in survival critical situation. The population density was the small at the 10 days ’ average temperature of 10-20℃. When 10 days ’ average temperature was above 20℃, the population increased very fast with the increasing of temperature. However, the whitefly population decreased to a comparative bust at the 10 days ’ average temperature of above 30℃. Afterwards, the population increased to the peak again, and caused the heavy damage of autumn vegetable production.关键词
烟粉虱/生物特性/种群数量/变动规律/影响因子Key words
Whitefly (Bemisia tabaci (Gennadius))/Biological Characteristics/Population/Population Dynamics/Effect Factors分类
农业科技引用本文复制引用
李达林,汪恩国,林凌伟..外来入侵烟粉虱生物特性及其种群数量变动规律研究[J].农学学报,2012,2(1):12-17,6.基金项目
浙江省科技计划项目“外来入侵生物烟粉虱发生危害规律和综合治理研究” （）
