CAJ | 학술논문

调查花椰菜、甘蓝、番茄、黄瓜4种寄主植物上烟粉虱的发生动态。结果表明，烟粉虱的卵若虫数量在寄主植物的生育期内持续增长，10月1日达到高峰，之后逐渐减少，其发生动态在4种寄主间及同种寄主不同部位叶片间有差异。烟粉虱卵若虫在4种寄主上虫口数量依次为番茄＞黄瓜＞花椰菜＞甘蓝。烟粉虱卵多集中分布在4种寄主上中部叶片，且上部多于中部，上部与下部间差异显著；若虫多集中分布在4种寄主中下部叶片，中下部间无显著差异，上部叶片基本无分布。烟粉虱成虫发生量与日平均温度呈正相关，与日降雨量呈负相关。
조사화야채、감람、번가、황과4충기주식물상연분슬적발생동태。결과표명，연분슬적란약충수량재기주식물적생육기내지속증장，10월1일체도고봉，지후축점감소，기발생동태재4충기주간급동충기주불동부위협편간유차이。연분슬란약충재4충기주상충구수량의차위번가＞황과＞화야채＞감람。연분슬란다집중분포재4충기주상중부협편，차상부다우중부，상부여하부간차이현저；약충다집중분포재4충기주중하부협편，중하부간무현저차이，상부협편기본무분포。연분슬성충발생량여일평균온도정정상관，여일강우량정부상관。
In this paper,the dynamics of Bemisia tabaci (Gennadius)on four host plants (e.g.cauliflower,cabbage, cucumber and tomato)were investigated.Our results showed that the number of eggs and nymphae of B .tabaci increased with the growth of host plants continually and peaked at 1 th October,then it decreased gradually. However,the dynamics were different among the hosts and leaf sections.The number of eggs and nymphae of B . tabaci on the four hosts was tomato>cucumber>cauliflower>cabbage.In addition,eggs of B .tabaci were mainly on the upper and middle leaves,but the number on the upper was more and the difference between on the upper and bottom was significant.In the contrast,the nymphae were mainly on the middle and bottom leaves,but there was not significant on the upper and bottom.In the end,the adult densities were positively correlated with the daily mean temperature,but negatively correlated with the daily rainfall.