Attractiveness of semiochemicals for the glasshouse whitefly, Trialeurodes vaporariorum Westwood (Homoptera: Aleurodidae) and the tobacco thrips, Thrips tabaci Lindemann (Thysanoptera: Thripidae) - A. M. Chernej; G. V. Kryzhanovskaja; T. M. Neverovskaja; N. M. Tron; O. I. Kolodjazhnyj; N. E. Roditakis (The Kharkov Entomological Society gazette, 2000)