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    Determination of some biological parameters of Capsodes infuscatus Brulle on summer asphodel (Asphodelus aestivus Brot.) in pastures of Canakkale Province
    (Wiley, 2020) Ozpinar, Ali; Yazmis, Efecan; Ali, Baboo; Sahin, Ali Kursat
    This study has been carried out in the years of 2016-2017 to determine biological parameters of Capsodes infuscatus Brulle (Hemiptera: Miridae) on asphodel (Asphodelus aestivus Broth.) in the pastures of Canakkale, Turkey. In order to determine the population fluctuation of C. infuscatus, counting was done twice in a week on leaves, stems and flowers of plants in two different locations in the pasture. It was determined that the C. infuscatus aestivates in dried asphodel stalks as eggs. The first nymphal stages can be seen at the end of February, while adult population ends at the end of May. It was observed that both the nymphal and adult stages of C. infuscatus were feeding together on A. aestivus from March to May. In 2016, an average of 7.86%, 57.26%, 8.72% and 34.12% C. infuscatus individuals were recorded on plant, leaves, stems and flowers, respectively. In 2017, an average of 22.08%, 67.5%, 15.0% and 17.56% C. infuscatus individuals were recorded on plant, leaves, stems and flowers, respectively. The mortality rates of C. infuscatus nymphal stages were 94.76% in grazing area and 95.77% in non-grazing area. We concluded that C. infuscatus has potential for the biological control of A. aestivus.
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    Determination of the Relationship Between Orobanche ramosa L. and Phytomyza orobanchia Kaltenbach, (Diptera: Agromyzidae) on Tomato Areas of Canakkale Province
    (Univ Namik Kemal, 2017) Ozpinar, Ali; Polat, Burak; Sahin, Ali Kursat; Ozpinar, Sakine
    This study was conducted to determine the infestation rate of broomrape (Orobanche ramose) and population density of its natural enemy Phytomyza orobanchia (Diptera: Agromyzidae) in tomato production areas of Canakkale province, in 2013-2014 years. It is determined that 58% of tomato production areas of Canakkale is infested with broomrape and P. orobanchia was acquired from 1-13,6% of this areas. The relationship between broomrape plant density and P. orobanchia was investigated in 10 different tomato parcels with different tomato cultivars. It is determined that, broomrape plants were observed after July 4th and P. orobanchia were acquired from plant samples after August 15th. Adult emergence has continued throughout September, until the end of harvest season. The highest number of P. orobanchia adults was observed from Rio Grande cultivar, which was sowed in May 25th.
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    Effect of light on the longevity and fecundity of Venturia canescens (Gravenhorst) (Hymenoptera: Ichneumonidae)
    (Zoological Soc Pakistan, 2007) Sahin, Ali Kursat; Ozkan, Cem
    The effect of light on the longevity and fecundity of Venturia canescens (Gravenhorst) (Hymenoptera: Ichneumonidae) was investigated at 25+/-1 degrees C temperature and 60-70 % relative humidity. In the experiment, V. canescens was reared in L0:D24 (continuous darkness) and L16:D8 (2000 and 5000 lux light intensities), and the longevity and fecundity of the parasitoid were defined at these conditions. The results indicated that photoperiod and light intensity significantly affected the longevity and fecundity of the parasitoid. The maximum average longevity was found to be 583.92+/-43.46 hours in continuous darkness. The average longevity of the parasitoid decreased in L16:D8 (15.17% and 25.35% in 2000 and 5000 lux light intensities, respectively). Similarly, the maximum average fecundity was found as 193.02+/-4.45 in L0:D24 and average fecundity of the parasitoid decreased in L16:D8 (10.53% and 30.78% in 2000 and 5000 lux light intensity treatments, respectively). The findings of this investigation confirm that photoperiod and light intensity could have potential for improving biological control efficacy of V canescens in grain storage warehouses.
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    Population dynamics of Coccinella septempunctata (Coleoptera: Coccinellidae) in the region of Edremit Gulf in West Anatolia (Mount Ida)
    (Czech Acad Sci, Inst Entomology, 2018) Ozpinar, Ali; Sahin, Ali Kursat; Polat, Burak
    This study reports seasonal presence of Coccinella septempunctata L. (Coleoptera: Coccinellidae) in Southeast Turkey, in 2008, 2009 and 2010. Samples were collected from crops in agricultural areas at altitudes of 10 m, 800 m and 1400 m from stands of wild herbaceous plants , and at 1750 m from stone debris fields. First C. septempunctata adults were collected at the beginning of June at Tentcamp (800 m) and Tozlu (1400 m), early in July at Sarikiz (1700 m) when the mean air temperature reached 30 degrees C. Adults became active in spring, after aestivating around Sarikiz and overwintering there under snow. First adults emerged on 2nd April in 2009 around Edremit Gulf when mean air temperature reached 14.8 degrees C. Adult and immature stages of C. septempunctata were recorded attacking aphid populations till the end of June. C. septempunctata was present there for only one period each year during which they completed one generation. Adult individuals of this generation returned to Mount Ida to aestivate. Maximum numbers of adults present on Mount Ida in the first week of August in 2009 and 2010 were recorded. C. septempunctata adults aestivate and overwinter at Sarikiz on Mount Ida after completing their development on aphids in April, May and June around Edremit Gulf.
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    Studies of selected biological parameters of tomato leafminer Tuta absoluta (Meyrick), (Lepidoptera: Gelechiidae) under natural conditions
    (Springer, 2016) Polat, Burak; Ozpinar, Ali; Sahin, Ali Kursat
    This study was conducted in summer-winter 2012 to determine the longevity, fecundity and developmental period of each stage of Tuta absoluta (Meyrick) (Lepidoptera: Gelechiidae) under natural conditions in Canakkale province, Turkey. During the tomato growing season, T. absoluta completed 5 generations. The generation time changed according to temperature. Longevity was recorded as 3.37-6.14 days in males and 7.7-9.75 days in females. The fecundity was 75.5-138.4 eggs. Developmental period of the eggs ranged between 3.72 and 10.54 days. The larval developmental period was 12.82-26.7 days and the pupal developmental period ranged from 7.52 to 20.62 days. The total number of eggs per female for each generation varied between 31 and 186 and the females laid 68-72% of their eggs in the first five days. Degree days per generation changed between 461.02 DD and 470.94 DD. Biological properties of the pest changed in each generation. In this study, the biological parameters of T. absoluta were determined and this data can be used as an important step towards developing successful Integrated Pest Management strategies.