The modern concept of a biorational protection of greenhouse crops implies the application of environmentally friendly tools for the harmful arthropods management. The aim of our experiments was to examine the efficacy of some essential oils and individual components of essential oils for management of principal greenhouse pests. Application of the ethylisonicotinate, Thrips tabaci Lind. specific semiochemical, increases circular effective attraction radius of the white sticky traps in 3,6 times. This allows to identify the onion thrips at its low abundance quickly and accurately and to estimate the changes of the thrips’s density populations when growing the sweet pepper and tomatoes. The essential oils and terpenoids were screened for contact, fumigant, repellent and deterrent effects against Tetranychus urticae Koch. and Trialeurodes vaporariorum West. The 50% mortality female mites occurred during 120, 175, 185 minutes at concentration of vapor 27 μg/cm3 air of Rosmarinus officinalis, Eucalyptus spp., Salvia sclarea oils. The Mentha piperita oil was most toxic oil: LT50 was 120 min. at concentration 7 μg/cm3 air. The rosemary oil-based product caused 50% mortality of female mites by contact at concentration 0,465%. Treatment of the kidney bean leaves with 0,25-0,5% Rosmarinus officinalis, Santalum spp. oil or with carvacrol based products changed the mites behavior. More than 65% of mites avoided the kidney bean leaves, treated with these semiochemicals in the choice tests. Monoterpenoids geraniol and carvacrol at concentration 1% acted as repellents on the greenhouse whitefly adults. Polymeric nets, treated with these terpenoids, were toxic for the pests, resistant to pirimiphos-methyl and α-cypermethrin. Low persistence of the essential oils in the environment, low toxicity for non-targeted organisms and possibility of application shortly before harvest opens up prospects for the elaboration of new and effective formulations of these semiochemicals and methods of their application.