Yazar "Aysal, Tolga" seçeneğine göre listele
Listeleniyor 1 - 9 / 9
Sayfa Başına Sonuç
Sıralama seçenekleri
Öğe Adult survival rate and oviposition preference of Stephanitis pyri (F., 1775) (Heteroptera: Tingidae) on different plant species(Entomological Soc Turkey, Ege Univ, 2011) Kivan, Müjgan; Aysal, TolgaStephanitis pyri (F., 1775) is a pest of apple, pear trees and ornamental plants of Rosaceae in Palearctic Region. This study was conducted to determine that the oviposition preference of S. pyri, which is a poyphagous insect, in the laboratory conditions. No-choice and multi-choice tests were performed on the leaf of different host plant species. Leaves of 13 plant species were tested in no-choice tests. No eggs were laid on Prunus persica (L.) Batsch., Aesculus hippocastanum L., Salix alba L. and Rhododendron indicum (L.) Sweet in these tests. Total number of eggs was highest on Prunus avium L. (93.8 eggs), Pirus malus L. (80.1 eggs), Rosa sp. (77.3 eggs) and Pirus communis sativa D. C. (73.5 eggs). In multi-choice tests, eggs were laid the highest numbers on P. malus (82.7 eggs) than the others. Percent preference of S. pyri was firstly Pirus malus with 37.2 %. Secondly P. communis sativa and following P. avium were preferred to oviposit by females. Adults begun to die at day 7th and survival rate was found high in both no-choice and multi-choice tests, although they lived only 4 days without host plant.Öğe Development and population growth of Stephanitis pyri (F.) (Heteroptera : Tingidae) at five temperatures(Springer Heidelberg, 2008) Aysal, Tolga; Kivan, MüjganPear lace bug, Stephanitis pyri (F.) (Heteroptera: Tingidae) is a pest of apple and pear trees and ornamental Rosaceae plants in Mediterranean countries and palearctic region. The aim of this study is to determine the effects of temperatures on S. pyri in the laboratory. Development and fecundity of S. pyri reared on apple leaves (Pyrus malus L.) were investigated at five constant temperatures (20, 23, 26, 29 and 32 +/- 1 degrees C) and a 16L:8D photoperiod. Longevity was determined to be 12.6 days at 32 degrees C and 58.7 days at 20 degrees C for females, and 9.7 and 37.7 days for males. Females laid 186.9 eggs per female with the highest number achieved during 28.5 days of oviposition period at 26 degrees C. Female lifetime fecundity was reduced at 32 degrees C (40.0 eggs per female). While the net reproductive rate (R-0) was highest at 26 degrees C, the intrinsic rate of natural increase (r(m)) was highest at both 26 and 32 degrees C. The mean generation time (G) was estimated to be 27.2-78.4 days at 20 and 32 degrees C, respectively. The longest development times for egg and total nymph stages were obtained as 22.0 and 24.9 days, respectively, at 20 degrees C. S. pyri developed fastest from egg to egg in 24.3 days at 32 degrees C. The lower developmental threshold (T-0) was 9.7 degrees C and the thermal constant (K) was 517.3 degree-days for S. pyri. Thus, S. pyri is calculated to have 3.8 theoretical generations in Tekirdag. The optimum developmental temperature for S. pyri was 26 degrees C.Öğe Interspecific competition between Trissolcus semistriatus Nees and Trissolcus simoni (Mayr.) (Hymenoptera: Scelionidae), egg parasitoids of the sunn pest(2018) Kıvan, Müjgan; Aysal, TolgaTrissolcus semistriatus Nees and T. simoni (Mayr.) (Hymenoptera: Scelionidae)are the most important and common natural enemies of the sunn pest [Eurygasterintegriceps Put. (Hemiptera: Scutelleridae)]. This study was conducted todetermine whether females of T. semistriatus and T. simoni multiparasitizedpreviously parasitized E. integriceps eggs or not and to evaluate interspesificlarval competition and adult competition between T. semistriatus and T. simoni.For this aim, half of host egg mass parasitized by one species and un-parasitizedwere provided to females of other species in choice tests, and a whole egg massparasitized by one species were given to other species female in no choicetests. Multiparasitism experiments were applied after one hour, 24 h and 72 hfrom the first oviposition. To determine adult competition, one each female of T.semistriatus and T. simoni were released on two egg masses at the same time. Allexperiments were observed under a stereomicroscope. Multiparasitism rates forboth T. semistriatus and T. simoni were significantly low in the eggs pre-parasitizedby another female species in choice test and these rates decreased with the timefrom the first parasitism, whereas multiparasitism rates were higher in choice testthan those of non-choice test. Emergence from multiparasitized eggs was greaterfor first parasitoid species than for second species. As a result of adult competitiontests, female of T. semistriatus was found as a superior competitor than T. simoni.Öğe Laboratuvar koşullarında Perillus bioculatus (F.) (Hemiptera: Pentatomidae)' un gelişme süresi ve ölüm oranı üzerinde ön çalışmalar(2014) Kıvan, Müjgan; Aysal, TolgaAbstract: The study was conducted to investigate the development of Perillus bioculatus (F.) (Hemiptera: Pentatomidae), a predator of the Colorado potato beetle, Leptinotarsa decemlineata (Say.) (Coleoptera: Chrysomelidae), at two different temperatures. The incubation periods were 5.94 and 4.94 days, and hatching rates were 94% and 95%, respectively, at 26±1 o C and 29±1 o C. The total nymphal period was 15.57 days at 26±1 o C and 15.13 days at 29±1 o C . Gender proportions were calculated as 0.75 and 0.60 (F/M) at 26±1 o C and 29±1 o C, respectively. The mortality rate was high at both temperatures.Öğe Laboratuvar koşullarında sıcaklık ve besinin armut kaplanı Stephanitis pyri (Fabricius) (Heteroptera:Tingidae)'ye etkileri üzerinde araştırmalar(Namık Kemal Üniversitesi, 2008) Aysal, TolgaSıcaklığın ve bazı konukçu bitkilerin S. pyri üzerindeki etkilerini saptamak amacıyla, 2006 yılında Namık Kemal Üniversitesi, Ziraat Fakültesi, Bitki Koruma laboratuvarlarında bir çalışma yürütülmüştür. Sıcaklıkla ilgili çalışmalar, 20±1, 23±1, 26±1, 29±1 ve 32±1 ºC'ler olmak üzere beş farklı sıcaklıkta, 16/8 saatlik aydınlatmalı koşullarda, elma yaprağı üzerinde yapılmıştır. Konukçular ile ilgili çalışmalar 26±1 ºC sıcaklıkta, aynı koşullarda yürütülmüş, farklı konukçular olarak elma (Pyrus malus L.), kiraz (Prunus avium L.) ve ateş dikeni (Pyracantha coccinea M. Roem.) (Rosaceae) yaprakları kullanılmıştır. Denemede tüm sıcaklıklar içerisinde; ergin ömrü, ovipozisyon süresi, yumurta açılma süresi, yumurtadan ergine gelişme süresi ve cinsiyetlere göre nimf gelişme süresi, en kısa 20 °C'de, en uzun 32 °C'de kaydedilmiş ve bu sürelerin sıcaklığın artması ile kısaldığı tespit edilmiştir. Denenen tüm sıcaklıklarda dişilerin erkeklerden daha uzun süre yaşadığı belirlenmiştir. Elde edilen bulgulara göre Armut kaplanı için en uygun sıcaklığın 26 °C olduğu saptanmıştır. 26 °C'de, ergin ömrü erkek ile dişilerde sırasıyla 16.4±1.9 ve 35.5±2.4 gün, ovipozisyon süresi 28.5±2.5 gün, yumurta verimi 186.9±15.3 yumurta, yumurta açılma süresi 9.9±0.1 gün, yumurtadan ergine gelişme süresi 22.4±0.3 gün olarak kaydedilmiştir. Armut kaplanının 20, 23, 26, 29 ve 32 °C'lerde dişi oranının sırasıyla % 42, % 35, % 52, % 43 ve % 78 olduğu bulunmuştur. Gelişmesini tamamlayan bireylerde, % 48.6 oranı ile en yüksek ölüm 32 °C'de elde edilmiştir. Dişilerin ömrü sıcaklık denemelerine benzer şekilde ve tüm konukçu bitkilerde erkeklere göre daha uzun bulunmuştur. Elma yaprakları ile beslenen armut kaplanında ergin ömrü erkek ile dişilerde sırasıyla ortalama 16.4±1.9 ve 35.5±2.4 gün, kiraz yaprağı ile beslenenlerde sırasıyla 13.5±1.4 ve 23.2±1.5 gün olarak kaydedilmiştir. Elma yaprağında beslenen dişilerin ovipozisyon süresi 28.5±2.5 gün, kiraz yaprağı ile beslenen dişilerin ise 15.4±1.5 gün olarak belirlenmiştir. En yüksek yumurta verimi 186.9±15.3 yumurta olarak elma üzerinde beslenen dişilerde elde edilmiştir. Yumurta açılma süresi elma, kiraz ve ateş dikeninde sırasıyla 9.9±0.1, 11.9±0.1 ve 10.9±0.4 gün olarak saptanmıştır. Yumurtadan ergine gelişme süresi en kısa 22.4±0.3 gün ile elmada tespit edilirken bunu 23.4±0.2 gün ile kiraz takip etmiştir. Ölüm oranları denenen tüm konukçularda benzer değerler olarak kaydedilmiştir. Armut kaplanının elma, kiraz ve ateş dikeninde dişi oranı sırasıyla % 52, % 61 ve % 42 olarak bulunmuştur. Elma ve kirazın ateş dikenine göre S. pyri için daha uygun konukçular olduğu belirlenmiştir.Öğe Natural Enemies of Tingidae (Hemiptera) Species in Tekirdağ Province(Namik Kemal University - Agricultural Faculty, 2023) Aysal, Tolga; Kivan, MüjganThis study was carried out to determine the natural enemies and distribution of Tingidae family species in Malkara, Saray, Süleymanpaşa, and Şarköy districts in Tekirdağ. Surveys were conducted on woody plants in 2011-2012. Field surveys were carried out at 10-day intervals between the beginning of April and the end of October. Visual inspection and shaking methods were used for sample collection. As a result of the surveys, as a natural enemy of Tingidae family species belonging Coleoptera order from the Coccinellidae family; Coccinella septempunctata (Linnaeus, 1758), Exochomus quadripustulatus (Linnaeus, 1758), Oenopia conglobata (Linnaeus, 1758), Stethorus gilvifrons (Mulsant, 1850), Hemiptera order from Anthocoridae family; Anthocoris nemoralis (Fabricius, 1794), Orius niger (Wolff, 1811), Orius vicinus (Ribaut, 1923), from Miridae family; Deraeocoris lutescens (Schilling, 1837), Stethoconus pyri (Mella, 1869) and Neuroptera order from Chrysopidae family; Chrysoperla carnea (Stephens, 1836), a total of 10 predatory species were identified. Erythmelus panis (Enock, 1909) from Mymaridae family of Hymenoptera order was determined as egg parasitoid. Stethoconus pyri was the most common species in Tekirdağ province, followed by C. septempuctata while A. nemoralis and S. gilvifrons were the least common species, respectively. The distribution of natural enemies was almost similar to the rate of their presence. It has been determined that all natural enemies in the province feed on Stephanitis pyri (Fabricius, 1775) (Pear lace bug). O. conglobata with Monosteira unicostata (Mulsant & Rey, 1852), except the Pear lace bug; A. nemoralis, O. niger and O. vicinus were also recorded to feed on Corythuca ciliata (Say, 1832). Many of the detected natural enemies are the first record for Tekirdağ fauna. Among these species, according to the observations and the data obtained, S. pyri feeding on Pear lace bug and Orius species feeding on C. ciliata are thought to be more important than other natural enemies. Therefore, in future studies, it would be more appropriate to investigate the biology and activities of these species in laboratory and/or field conditions. © Bu çalışma Tekirdağ Namık Kemal Üniversitesi tarafından Creative Commons Lisansı (https://creativecommons.org/licenses/by-nc/4.0/) kapsamında yayınlanmıştır. Tekirdağ 2023.Öğe Tekirdağ İlinde Bulunan Tingidae (Hemiptera, Heteroptera) Türleri Ve Yayılışları(Namık Kemal Üniversitesi, 2018) Aysal, Tolga; Kıvan, MüjganBu çalışma, Tekirdağ ilinde odunsu bitkiler üzerindeki Tingidae familyası türleri ve yayılışlarını saptamak amacıyla yürütülmüştür. Tekirdağ’ın Malkara, Saray, Süleymanpaşa ve Şarköy ilçelerinde, 2011-2012 yıllarında yürütülen sürvey çalışmalarında gözle kontrol ve darbe yöntemleri kullanılmıştır. Çalışma sonucunda Corythucha arcuata (Say), Corythucha ciliata (Say), Monosteira unicostata (Mulsant & Rey), Physatocheila confinis Horváth ve Stephanitis pyri (Fabricius) olmak üzere beş Tingidae türü tespit edilmiştir. Bu türlerden C. arcuata, M. unicostata ve P. confinis Tekirdağ ili faunası için ilk kayıttır. S. pyri ise ilde en yaygın ve bol bulunan tür olarak belirlenmiştir.Öğe Tingidae (Hemiptera, Heteroptera) species and their distribution in Tekirdağ Province(Namik Kemal University - Agricultural Faculty, 2018) Aysal, Tolga; Kıvan, MüjganThe study was conducted to determine species of Tingidae family on woody plants and their distribution in Tekirdağ province. Survey studies were conducted in Malkara, Saray, Süleymanpaşa and Şarköy districts in years 2011-2012 using visual inspection and shaking methods. As a result of the study, Corythucha arcuata (Say), Corythucha ciliata (Say), Monosteira unicostata (Mulsant & Rey), Physatocheila confinis Horváth and Stephanitis pyri (Fabricius) were determined. C. arcuata, M. unicostata and P. confinis species were recorded first time in the fauna of Tekirdağ province. S. pyri was determined as the most widespread and abundant one. © 2018 Namik Kemal University - Agricultural Faculty. All rights reserved.Öğe Tingidae (Hemiptera, Heteroptera) Species and Their Distribution in Tekirdag Province(Univ Namik Kemal, 2018) Aysal, Tolga; Kivan, MujganThe study was conducted to determine species of Tingidae family on woody plants and their distribution in Tekirdag province. Survey studies were conducted in Malkara, Saray, Suleymanpasa and Sarkoy districts in years 2011-2012 using visual inspection and shaking methods. As a result of the study, Corythucha arcuata (Say), Corythucha ciliata (Say), Monosteira unicostata (Mulsant & Rey), Physatocheila confinis Horvath and Stephanitis pyri (Fabricius) were determined. C. arcuata, M. unicostata and P. confinis species were recorded first time in the fauna of Tekirdag province. S. pyri was determined as the most widespread and abundant one.
