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Öğe EVALUATION OF THE SUSCEPTIBILITY OF DIFFERENT PRUNUS ROOTSTOCKS TO NATURAL INFECTION OF PLUM POX VIRUS-T(Springer, 2013) Caglayan, K.; Serce, C. U.; Gazel, M.; Kaya, K.; Cengiz, F. C.; Vidal, E.; Cambra, M.Plum pox virus (PPV) has been observed in Turkey since 1968, but was not widespread except in apricot and plum trees in home gardens and ornamental parks in restricted areas. Susceptibility of six different Prunus rootstocks to strain PPV-T was assessed under natural inoculum pressure in the Izmir-Aegean region during 2010-2011. Aphid populations were monitored from the first week of April to the middle of June by the sticky-plant method one year after the rootstock plantation was established. Aphids collected from different rootstocks were tested individually by squash real-time RT-PCR and all rootstocks were regularly tested by DASI-ELISA. The largest aphid populations were observed at the end of May and the most abundant aphid species as averages over the two years were Myzus persicae (20.15%), Hyalopterus pruni (18.64%), Aphis craccivora (9.04%) and Aphis gossypii (8.36%). In 2011, the highest percentage of viruliferous aphids was found in M. persicae (34.78%), followed by H. pruni (32.50%), Macrosiphum euphorbiae (25.00%), A. gossypii (23.80%), A. spiraecola (12.50%) and A. craccivora (10.00%). Of the six Prunus rootstocks tested, only Nemaguard and Myrobalan 29C were infected by PPV-T, infection rate in 2010 being 6.0% (Nemaguard) and 4.0% (Myrobalan 29C). The infection rate increased to 16.0% for Nemaguard and 14.0% for Myrobalan 29C in 2011. However, the other rootstocks, Prunus marianna GF8.1, Docera6, GF677 and Garnem tested negative for PPV-T throughout 2011. PPV isolates obtained from naturally infected apricot trees (inoculum source) and from infected rootstocks in the experimental plot were characterized as PPV-T and had more than 99.5% nucleotide sequence identity.Öğe First Report of a Root Rot Caused by Phytophthora palmivora on Lavandula angustifolia in Turkey(Amer Phytopathological Soc, 2011) Dervis, S.; Arslan, M.; Serce, C. U.; Soylu, Soner; Uremis, I.[Abstract Not Available]Öğe First Report of Canker and Root Rot of Almond Caused by Phytophthora plurivora in Turkey.(Amer Phytopathological Soc, 2016) Ciftci, O.; TurkoImez, S.; Dervis, S.; Serce, C. U.[Abstract Not Available]Öğe First Report of Phytophthora palmivora Causing Crown and Root Rot of Kiwifruit (Actinidia deliciosa) in Turkey(Amer Phytopathological Soc, 2016) Ciftci, O.; Serce, C. U.; Turkolmez, S.; Dervis, S.[Abstract Not Available]Öğe First Report of Phytophthora palmivora Causing Crown and Root Rot of Pistachio Trees in Turkey(Amer Phytopathological Soc, 2015) Turkolmez, S.; Ciftci, O.; Dervis, S.; Serce, C. U.[Abstract Not Available]Öğe First Report of Phytophthora palmivora Causing Crown and Root Rot on Pear (Pyrus communis) Trees in Turkey.(Amer Phytopathological Soc, 2016) Turkolmez, S.; Ciftci, O.; Dervis, S.; Serce, C. U.[Abstract Not Available]Öğe First Report of Phytophthora palmivora Causing Crown and Root Rot on Pomegranate (Punica granatum) in Turkey(Amer Phytopathological Soc, 2016) Turkolmez, S.; Ciftci, O.; Serce, C. U.; Dervis, S.[Abstract Not Available]Öğe Involvement of Phytophthora spp. in chestnut decline in the Black Sea region of Turkey(Wiley, 2012) Akilli, S.; Serce, C. U.; Katircioglu, Y. Z.; Maden, S.Chestnut blight caused by Cryphonectria parasitica is a serious disease of Castanea sativa in the Black Sea region of Turkey. During disease surveys, dieback and decline symptoms were observed on trees without apparent blight and ink disease symptoms. Black necroses, similar to those caused by Phytophthora infections, were noted on some of the chestnut coppices and saplings in one nursery in Ordu and led to an investigation into this disease complex. Only symptomatic plants showing dieback symptoms were investigated. Soil samples together with fine roots were collected from two directions, north and north-east, approximately 150 cm away from the main stems. Phytophthora spp. were baited with young chestnut leaves. Three Phytophthora spp., P.similar to cambivora, P.similar to cinnamomi and P.similar to plurivora, were identified from 12 soil samples collected from 73 locations, while from the nurseries, only P.similar to cinnamomi was obtained. Phytophthora cinnamomi was the most common species, obtained from seven locations in five provinces and from four nurseries having similar symptoms mentioned above in different locations. Phytophthora cambivora and P.similar to plurivora were less frequently obtained, from three to two stands, respectively. Phytophthora cinnamomi and P.similar to cambivora were the most aggressive species when inoculated at the stem base on 3-year-old chestnut saplings, killing six saplings of eight inoculated in 2 months. The three Phytophthora species were first recorded on chestnut in Black sea region of Turkey with the limited samples investigated in a large area about 150 000 ha chestnut forest.Öğe TRANSMISSION OF THE FIG MOSAIC AGENT BY THE ERIOPHYD MITE ACERIA FICUS COTTE (ACARI: ERIOPHYIDAE)(Springer, 2009) Caglayan, K.; Medina, V.; Yigit, A.; Kaya, K.; Gazel, M.; Serce, C. U.; Caliskan, O.[Abstract Not Available]
