Journal of Entomology1812-56701812-5689Asian Network for Scientific Information10.3923/je.2006.1.8Frankliniella occidentalis (Pergande) (Thysanoptera: Thripidae) on Cucumber Leaves (Cucumis sativus L., F1 Kamaron)]]>DeligeorgidisP. N.C.G. Ipsilandis M. Vaiopoulou N.P. Deligeorgidis D. Petkou E. Simopoulos 1200631During the present study, an evaluation of damage caused by Frankliniella occidentalis (Pergande) (Thysanoptera: Thripidae) on cucumber leaves is given. The experiment took place in May 1999. For this purpose, 50 cucumber plants (Cucumis sativus L., F1 Kamaron) were used. The plants grew in small pots covered by plastic cages in a glasshouse. Plants with the first real leaf developed (approximately 14 cm2), were divided in Groups I-V, each consisting of 10 plants. On each plant of the first four Groups, 5, 15, 25 and 35 females of F. occidentalis were released respectively, while Group V was used as control. Plants remained covered by the plastic cages in the glasshouse throughout the experiment for 18 days. The number of thrips individuals placed on each plant remained stable during the study. Results showed that, the damage on cucumber leaves increases relatively with the number of thrips. The damaged leaf area was 1.02 cm2 at 5 thrips individuals, increasing at 7.81 cm2 at 35 thrips individuals. Photosynthetic capability was also reduced. The chlorophyll content estimation in SPAD units was almost intact when initial number of thrips was 5 individuals in comparison to the control, but readings of the instrument decreased rapidly in greater initial population.]]>Ananthakrishnan, T.N.,197130113140Anathakrishnan, T.N.,1984pp: 77-78pp: 77-78Broadbent, A.B., J.W.R. Allen and R.G. Foottit,1987Frankliniella occidentalis (Pergande) (Thysanoptera: Thripidae) with greenhouse crops and the tomato spotted wilt virus in Ontario.]]>119501503Broadbent, A.B., J.A. Matteoni and W.R. Allen,1990Frankliniella occidentalis (Pergande) (Thysanoptera: Thripidae) and incidence of tomato spotted wilt virus among cultivars of florist's chrysanthemum.]]>11211111117Bronson, K.F., T.T. Chua, J.D. Booker, J.W. Keeling and R.J. Lascano,20036714391448Cho, J.J., W.C. Mitchell, R.F.L. Mau and K. Sakimura,198771505508Chrisholm, I.M. and T. Lewis,198474663675Deligeorgidis, P.N. and C.G. Ipsilandis,2004Frankliniella occidentalis (Pergande) and Thrips tabaci Lindeman (Thysanoptera: Thripidae) under greenhouse cultivation.]]>128108111Deligeorgidis, P.N., C.G. Ipsilandis, C. Fotiadou, G. Kaltsoudas, L. Giakalis and A. Garsen,2005Frankliniella occidentalis (Pergande) and Thrips tabaci Lindeman (Thysanoptera: Thripidae) populations in greenhouse cucumber and tomato.]]>811051111Edelson, J.V., B. Cartwright and T.A. Royer,1986Thrips tabaci (Thysanoptera: Thripidae) on onion.]]>79502505Gawaad, A.A.A. and A.Y. Shazli,1969Thrips tabaci Lind.]]>L3453457Gillespie, D.R.,1989Amblyseius cucumeris.]]>34185192Hayashi, T., T. Suzuki and K. Oosawa,20025882933Hassanein, M.H., F.M. Halil and M.A. Isa,1970Thrips tabaci Lind. in upper Egypt.]]>LIV133140Higgins, C.J.,19928518911903Jensen, F.,19732768Kawai, A.,1990Thrips palmi Karny.]]>23282288Kendall, D.M. and J.L. Capinera,198716859863De Kogel, W.J.,20012001pp: 181183Krause, W.,1990Vol. 10,pp: 2-3pp: 2-3Lall, B.S. and L.M. Singh,196861676679Van Lenteren, J.C. and J. Woets,198833239269Lewis, T.,1973pp: 349pp: 349Mantel, W.P. and M. van de Vrie,1988Frankliniella occidentalis, een nieuwe schadelijke tripssoort in de tuinbouw onder glas in Nederland.]]>48140144Maschinski, J. and T. Itham,1989134119Mollema, C., M.M. Steenhuis, H. Inggamer and C. Soria,1993Frankliniella occidentalis in cucumber: Methods, genotypic variation and effects upon thrips biology.]]>167782Murphy, G., G. Ferguson and L. Shipp,2004Mustafa, T.M.,198693271277Palmer, J.M., L.A. Ound and C.J. du Heaume,19892nd Edn.,Pedigo, L.P., S.H. Hutchins and L.G. Higley, 198631341368Priesner, H.,1964pp: 13pp: 13Rijn, V.P.C.J., C. Mollema and G.M. Steenhuis-Broers,1995Frankliniella occidentalis and Thrips tabaci (Thysanoptera: Thripidae) on cucumber.]]>85285297Robb, K.L. and M.P. Parrella,19871987Rosenheim, J.A., S.C. Welter, M.W. Johnson, R.F.L. Mau and L.R. Gusukuma-Minuto,1990Frankliniella occidentalis (Thysanoptera: Thripidae).]]>8315191525Salguero-Navas, V.E., J.E. Funderburk, R.J. Beshear, S.M. Olson and T.P. Mack,1991Frankliniella sp. (Thysanoptera: Thripidae) in tomato flowers.]]>8618181822Shelton, A.M. and R.C. North,19878013251330Shelton, A.M., J.P. Nyrop, R.C. North, C. Petzoldt and R. Foster,1987Thrips tabaci (Thysanoptera: Thripidae), on onions.]]>8010511056Snedecor, G.W. and W.G. Cochran,19807th Edn.,Stafford, E.M.,19741974Steiner, M.Y.,19901916051613Terry, L.I. and G. Degrandi-Hoffman,198812010031016Theunissen, J. and H. Legutowska,1991Thrips tabaci Lindeman (Thysanoptera: Thripidae) in leek: Symptoms, distribution and population estimates.]]>112163170Wolfenbarger, D. and E.T. Hibbis,1958Thrips tabaci Lind.) infesting cabbage.]]>51394396Yokoyama, V.Y.,1977Frankliniella occidentalis and scars on table grapes.]]>62530