EN
The study was carried out in a greenhouse of the UMCS Botanical Garden, Lublin in 2005–2007. During this period ornamental tropical plants were under chemical and mechanical pest control. Yellow and blue sticky traps were positioned randomly at the height of 30–80 cm above the ground. A total number of 69 277 individuals of the glasshouse whitefly were caught with yellow and blue sticky traps. The species was more numerous yellow traps (65 555 individuals). Mechanical and chemical treatment reduced the species population. Chemical pesticides were particularly effective when applied at the time of a high density of the pest population, however, did not eliminate it completely. Shortly after performed treatments the hemipteran rebuilt its population. Every year mechanical management of the greenhouse whitefly, performed in autumn, maintained the pest population at a low level.