摘要： 系统调查了日光温室樱桃番茄上温室白粉虱成、若虫及其丽蚜小蜂寄生后的黑"蛹"的空间分布。结果表明:植株上的垂直分布:温室白粉虱成、若虫在上部较幼嫩且已充分展开的叶片上的数量最多,单位调查部位平均分别高达1.6,17头;温室内的水平分布:成虫较随机,未见明显的规律;若虫在棚顶通风口正下方、偏阴面的植株上数量最多,单株平均最高达40头,最南端的阳面植株上数量最少,单株平均仅为7头;丽蚜小蜂寄生温室白粉虱黑"蛹"的空间分布:垂直分布在植株上部最多,单株平均达20头;水平分布在近北部甬道的植株上最高,单株平均达88头,最南端植株上最少,单株平均仅3头。表明温室白粉虱成、若虫喜在通风、透光良好且较幼嫩的植株上部取食、产卵和活动,其丽蚜小蜂寄生黑"蛹"的空间分布与其若虫寄主基本一致。

关键词: 日光温室, 温室白粉虱, 丽蚜小蜂, 樱桃番茄, 空间分布

Abstract: This spatial distribut ion of Trialeurodes vaporariorum (Westwood) nymphs, adults and their black “pseudopupa” parasitized by Encarsia formosa ( Gahan) on the cherry tomato was investigated in the sunlight greenhouse. In thelevel of the vertical distribution, the number of nymphs and adults of T. vaporariorum on the upper, tender and fully openleaves was the most, an single average plant is the most respectively reaching at 1. 6, 17; in the level of the horizontal distribution,the adults didn't show an obvious regularity, the larvae underneath the leaning shady- side and the vent plantare the most, an single average plant reaching to 40, but those on the southern plants was the least, an single average plantreaching to only 7.The black 'pupa' which was parasitized by E. formosa was the most on the upper of the plants, an singleaverage plant reaching at 20, in the vert ical distribution; those on the plants in the north were the most , an single averagereaching at 88, but those were the least, an single average plant only reaching to 3. The results indicated that thegreenhouse whitefly larvae and adults were addicted to feed, activity or oviposit on the leaves of the upper of the youngtender and vent ilated plants and the spat ial distribution of the black 'pupa' parasitized by E . f ormosa was approximatelyconsistent in the larvae of T. vaporariorum.

Key words: Sunlight greenhouse, Trialeurodes vaporariorum(Westwood), Encarsiaf ormosa (Gahan), Lycopersicon esculentum MILL. var. cerasif orme( DUN. ) ALEF, Spatial distribution

中图分类号: 

• S436.412