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    EFFICACY OF COLOURED STICKY TRAPS IN CAPTURING MUSHROOM FLIES (DIPTERA: PHORIDAE, SCIARIDAE AND SCATOPSIDAE)
    (PARLAR SCIENTIFIC PUBLICATIONS (P S P), 2016) Sahin, Inci; Erler, Fedai; Catal, Mursel
    The present study was carried out in two successive mushroom growing periods in 2014 to determine the effectiveness of three different coloured (yellow, blue and white) sticky traps in capturing mushroom flies; mushroom phorid fly Megaselia halterata Wood (Diptera: Phoridae), mushroom sciarid fly Lycoriella ingenua (Dufour) (Dip.: Sciaridae) and mushroom scatopsids Scatopse spp. (Dip.: Scatopsidae). A total of 24 sticky traps (8 per colour) were used for weekly sampling, and traps were hung about 25-30 cm above the compost bags, at least 40 cm apart from each other. For each of the two shelves of each mushroom production bunk, including 6 compost bags, one trap of each colour was hung, and the traps were replaced with fresh ones at weekly intervals. The results showed that yellow traps captured significantly more adults of L. ingenua than blue and white traps in both growing periods. There were no significant differences between yellow and blue traps in terms of adult catches of M. halterata and Scatopse spp. White traps were the least effective in capturing all fly species tested in both periods. Overall results indicate that yellow and blue colours can be used to enhance the effectiveness of sticky traps in capturing the mushroom flies.
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    Neonicotinoid resistance in Bemisia tabaci (Genn., 1889) (Hemiptera: Aleyrodidae) populations from Antalya, Turkey
    (ENTOMOLOGICAL SOC TURKEY, EGE UNIV, 2017) Sahin, Inci; Ikten, Cengiz
    Bemisia tabaci (Genn., 1889) (Hemiptera: Aleyrodidae) is one of most important pests of many crops worldwide. Furthermore, it has the ability to rapidly develop resistance to diverse group of insecticides, hence controlling this pest is problematic. The aim of the current study was to investigate neonicotinoid resistance status of different whitefly populations collected from Antalya, Turkey during summer 2011. Bemisia tabaci populations from five different locations in Antalya were all biotype B. Resistance to acetamiprid was between 4.4 and 30.4 times the LC50 of a susceptible population. Similarly, resistance to thiamethoxam was between 8.6 and 31.8 times compared to susceptible population. With the exception of one population, there was high correlation (r(2) = 0.92) between LC50 for acetamiprid and thiamethoxam. The LC50 confidence limits for all field populations overlapped for both neonicotinoids. Furthermore, LC90 values of all field populations for both neonicotinoids were higher than the recommended doses. These findings indicate development of uniform neonicotinoid resistant for whitefly in the region. The resistance homogeneity and cross resistance in the region sampled is discussed.