{"references": ["ANONIMUS: IRAC Susceptibility Test Methods Series, Version 3, Method No. 011, 2009.", "COPPING, L.G., AND MENN, J.J.: Biopesticides a review of their action, applications and efficacy. Pest Management Science, 56:651-676, 2000.", "GOKCE, A., ISAACS, R. AND WHALON, M.E.: Behavioural response of Colorado potato beetle (Leptinotarsa decemlineata) larvae to selected plant extracts. Pest Management Science, 62:1052\u20131057, 2006.", "IN\u0110I\u0106 D.: Efekti zajedni\u010dkog delovanja insekticida na krompirovu zlaticu Leptinotarsa decemlineata S ay. D oktorska d isertacija, U niverzitet u B eogradu, Poljoprivrdeni fakultet, 1-107, 1994.", "IN\u0110I\u0106, D.: Effect of j oint a ction of i nsecticides on colorado p otato beetle (Leptinotarsa decemlineata Say). Review of Research Work at the Faculty of Agriculture, Belgrade,. 42(1) 7-22, 1997.", "IN\u0110IC, D., KLOKO\u010cAR \u0160MIT, Z., VUKOVI\u0106, S.: Pesticidi visokog rizika i njihova zamena u za\u0161titi krompira. Studija, Poljoprivredni fakultet i Pokrajinski sekretarijat za nauku i tehnolo\u0161ki razvoj APV, Novi Sad, 1-39, 2006a.", "IN\u0110I\u0106, D., VUKOVI\u0106, S., KLOKO\u0160AR-\u0160MIT, Z.: Rapid detection of Colorado potato beetle (Leptinotarsa decemlineata Say.) sensitivity to insecticides. XVII Czech and Slovak Plant Protection, 2006, Prag, Proceedings, 459-464.", "IN\u0110I\u0106, D., VUKOVI\u0106, S., GRAHOVAC, M.: Osetljivost krompirove zlatice (Leptinotarsa decemlineata Say.) prema insekticidima i uspostavljanje monitoringa rezistentnosti. XXIV Seminar za\u0161tite bilja Vojvodine, Biljni lekar, 16-26, Novi Sad, 2009.", "IN\u0110I\u0106, D., VUKOVI\u0106, S., TANASKOVI\u0106, S., GRAHOVAC, M., KERE\u0160I, T., GVOZDENAC, S., SAV\u010cI\u0106-PETRI\u0106, S.: Screening Test for Detection of Leptinotarsa decemlineata (Say) Sensitivity to Insecticides. Pesticidi i fitomedicina, 27 (1) 59-67, 2012.", "JANJI\u0106, V., ELEZOVI\u0106, I.: Pesticidi u poljoprivredi i \u0161umarstvu u Srbiji, 2008. \u0160esnaesto, izmenjeno i dopunjeno izdanje, Dru\u0161tvo za za\u0161titu bilja, Beograd, 2008.", "MAR\u010cI\u0106, D., PERI\u0106, P.: Field evaluation of natural and syntetic insecticides against Leptinotarsa decemlineata Say. IV Balkan Symposium on vegetables and Potatoes, Plovdiv, Bulgaria, 2009, Acta Horticulture, 2 (830) 391-396.", "MOTA-SANCHEZ, D., HOLLINGWORTH, R.M., GRAFIUS, E.J., MOYER, D.D.: Resistance and cross-resistance to neonicotinoid insecticides and spinosad in the Colorado potato beetle, Leptinotarsa decemlineata (Say) (Coleoptera: Chrysomelidae. Pest Management Science, 62:30-37, 2006.", "MOHAMED, O.: Biological efficacy of some biorational and conventional insecticides in the control of different stages of the colorado potato beetle, Leptinotarsa decemlineata (Say) (Coleoptera: Chrysomelidae). Plant Protection Scienci, 46 (3)123-134, 2010.", "PERI\u0106, I., MILO\u0160EVSKI, N., KLJAJI\u0106, P.: Insecticide susceptibility of the Colorado potato beetle in the vicinity of Belgarde, Yugoslavia. Acta Horticulturae, 462: 983-990, 1997.", "SCHNEIDER-ORELLI, O.: Entomoloisches Praktikum.Aufl. Aarau, 1947.", "STANKOVI\u0106, S., ZABEL A., KOSTI\u0106, M., MANOJLOVI\u0106, B., RAJKOVI\u0106, S.: Colorado potato beetle (Leptinotarsa decemlineata Say) resistance to organophosphates and carbamates in Serbia. Journal of Pest Science, 77(1) 11-15, 2004.", "STUMPF, N., NAUEN, R.: Biochemical markers linked to abamectin resistance in Tertanychus urticae. Pesticide Biochemistry&Physiology, 72, 111-121, 2002.", "T\u0420\u0418\u0411\u0415\u041b\u042c, \u0421.\u041e. \u0418 \u041a\u041e\u0420\u041e\u041b\u042c, \u0422.\u0421.: \u041a\u043e\u043b\u043e\u0440\u0430\u0434\u0441\u044c\u043a\u0438\u0439 \u0436\u0443\u043a. \u0417\u0430\u0445\u0438\u0441\u0442 \u0440\u043e\u0441\u043b\u0438\u043d, I\u043d\u0441\u0442\u0438\u0442\u0443\u0442 \u0437\u0430\u0445\u0438\u0441\u0442\u0443 \u043f\u043e\u0441\u043b\u0438\u043d, \u041a\u0438\u0457\u0432, 1-31, 2001.", "WHALON, M.E., HOLLINGWORTH, R.M., MOTA-SANCHEZ, D.: The MSU database of pesticide resistance, 2008, http://www.pesticideresistance.org.", "ZABEL, A., RAJKOVI\u0106, S., MANOJLOVI\u0106, B., STANKOVI\u0106, S., VELJKOVI\u0106, I.: New pesticides in potato protection against the Colorado potato beetle [Leptinotarsa decemlineata (Say)] and late blight [Phytophtora infestans (Mont. de Bary)] on potato. 2nd Balkan Symposium on Vegetables and Potatoes, Thessaloniki, Greece, 2000, Proceeding, Acta Hotriculturae, 579: 491-500."]}

Screening test was carried out to assess the sensitivity to 19 filed populations of Colorado potato beetle (Leptinotarsa decemlineata Say.) to abamectin during 2008 (Futog, ��enej, Vilovo, Kovilj and ��urug), 2009 (Stepanovi��evo, Glo��ane, ��abalj, Sirig, ��ajka��, Ljutovo, ��imu��e, Ba��ko Gradi��te, Novo Milo��evo i Kikinda) and 2012 (Zmajevo, Despotovo, Vilovo and ��urug). The test provided a quick assessment of sensitivity of overwintered adults to abamectin (commercial insecticide Abastate) applied at label rate (0.75 l/ha), two-fold (1.5 l/ha) and five-fold higher rates (3.75 l/ha), by soaking method (5 sec). Mortality was assessed after 72 h of exposition. Results were corrected for the mortality in the control and presented as efficacy (%) after the treatment. According to IRAC (method 011), with slight corrections, the sensitivity of Colorado potato beetle was classified by scale 1-5 (1 - highly sensitive population (E= 100%); 2 - sensitive (100 > E ��� 95%); 3 ��� slightly resistant (95>E ���90%); 4 - resistant (90>E ���50%); 5 ��� highly resistant (E < 50%). From five tested populations in 2008, four were highly sensitive (E=100%) to abamectin at label rate and one was sensitive (E=97.5%). In 2009, out of ten tested populations, three were slightly resistant (E=92.6-94.6%), five were resistant (E=64.6-88.7%) and two were highly resistant (E=22.5-48.3%) to abamectin at label rate. Out of four tested populations in 2012, one was highly sensitive (E=100%), one was sensitive (E=95.8%) and two were slightly resistant (E=90.6-94.2%). The survival of adults in treatments with higher rates of abamectin, that the label one, prove that there is a part of population which has endured changes in susceptibility or selection to resistance.