Biological pest control in greenhouses generally depends on the release of natural enemies. Macrolophus pygmaeus (Hemiptera: Miridae) is one of the most used predators in European vegetable crops. However, its long establishment time is considered as one of the main drawbacks in regard to pest control. Pre-plant release in nurseries and the use of banker plants are strategies frequently used to enhance the response of predatory mirids. The aim of this work was to determine how the length of the pre-plant release period in banker plants (PRP) and banker plant species influenced the establishment and population dynamics of M. pygmaeus and its pest control in tomato crops. Two PRPs (24 h and 30 days) and two banker plants (tomato, Solanum lycopersicum—Solanaceae, and Ballota hirsuta—Lamiaceae) were assayed in a complete factorial design with three replicates, in individual greenhouses. The proportion of individuals established, founder population, abundance and population growth rate of M. pygmaeus were significantly higher for the long than for the short PRP. For the long PRP, the founder population and abundance of M. pygmaeus in greenhouses were higher when B. hirsuta, rather than tomato, was used as banker plant. Lower incidences of Bemisia tabaci (Hemiptera: Aleyrodidae) and Tuta absoluta (Lepidoptera: Gelechiidae) were registered in greenhouses with the long PRP, while the effect of the banker plant was not significant. The higher proportions of individuals established and higher population growth rates of M. pygmaeus in the greenhouses with the largest founder populations suggest the implication of Allee effects.

温室生物害虫的防治通常取决于天敌的释放。大型鳄（P. Macrolophus pygmaeus）是欧洲蔬菜作物中最常用的捕食者之一。然而，其长的建立时间被认为是有害生物防治的主要缺点之一。苗圃中植物的前期释放和银行植物的使用是经常用来增强掠夺性生物体反应的策略。这项工作的目的是确定堤岸植物（PRP）和堤岸植物物种的植物前释放期的长度如何影响pygmaeus的建立和种群动态及其对番茄作物的害虫控制。两个PRP（24小时和30天）和两个银行植物（番茄，茄属植物）-茄科和Ballota hirsuta-唇形科）在单个温室中以完整的因子设计进行了测定，具有三个重复。长期以来，侏儒支原体的建立个体比例，创始人人口，丰度和人口增长率显着高于短PRP。对于较长的PRP，使用B. hirsuta而不是番茄作为库房植物时，温室中的罂粟分支杆菌的始祖种群和丰度较高。烟粉虱（Hemiptera：Aleyrodidae）和绝对金枪鱼的发生率较低（鳞翅目：鳞翅目）在带有长PRP的温室中登记，而银行家株的影响并不显着。在建立者数量最大的温室中，建立的个体比例更高，而pygmaeus种群的增长率更高，这表明了Allee效应的含义。