Chalky spot damage on red lentil is the most important problem waiting for a solution regarding plant health at lentil cultivation in Southeast Anatolia Region, Turkey. The stink bugs, Piezedorus lituratus (F.) and Dolycorus baccarum L. were subjected to trials in cages and in sprayed and unsprayed plot trials in open lentil fields and fields containing windrowed lentils after harvesting. The study revealed that P. lituratus and D. baccarum feeding on red lentil caused chalky spot damage. Average damage to lentil seeds caused by P. lituratus was 13% and 7.8% and by D. baccarum was 4.9% and 2% in 2010 and 2011, respectively. There was a positive relation between P. lituratus density and chalky spot damage (r =0.788, r 2 =0.621, P=0.000). The study also showed that after the harvesting, the stink bugs gathered under windrowed lentils and continued feeding and causing chalky spot damage. The damage in unsprayed windrowed lentils (6.60%) was approximately 12-fold higher than that in sprayed windrowed lentils (0.57%). Study suggests conduction of future work on environmental friendly control methods of stink bugs and alternative harvesting methods.
Kırmızı mercimekte zararlı Dolycoris baccarum (L.) ve Piezodorus lituratus (F.)' a karşı deltamethrin'in biyolojik etkinliği Efficacy of deltamethrin against Dolycoris baccarum L. and Piezodorus lituratus (F.
The pheromone traps were hanged on the trees in orchards at the beginning of April. The traps were checked twice a week until the first moth was caught, then they were checked weekly up to the end of season. The level of damage was determined by examining leaves, blossoms and fruit. Sampling was conducted 3 times in a year. The shoots 15-20 cm in length were taken from 4 directions of the trees in each orchard to estimate the damage caused by phyllophagous and anthophagous generation. Five olive fruit from each direction (total 20 from each tree) of the tree were sampled to determine the damage on fruit from 10 trees in each orchard for the carpophagous generation. As a result, it is found that adult moth activity begins in early April. Adults of first and second generation were seen together until mid-June. Activity of third generation adult started at the beginning of September until mid-November. The population curves were plotted based on weekly catches. The pest passes 3 generation a year. Damage level was different in each orchard and year. Damage level estimated, in general caused by phyllophagous, anthophagous and carpophagous were 3-5%, 0.3-3%, 0.5-3% respectively. Although adult moths that caught on trap were high, the damage level was very low. In conclusion this pest could be potencial pest in GAP region for now.
SummaryThis study was carried out in rice growing fields of Karacadağ rice variety, which has specific smell and aroma in Southeast Anatolia Region and preferred by residents of that area, within borders of Şanlıurfa province (Siverek Üzümlük) and Diyarbakır province (Ergani Demirli, Çınar Kuyuluhöyük, Hazro Düzevler) during the years 2010 and 2011. The study was conducted in order to determine distribution and population change of Tipula orientalis Laskschewitz (Diptera: Tipulidae) have been conducted in Ergani and Demirli village. Sampling of T. orientalis have been performed by using hand-picking, D-vac and sweeping net.The results indicated that the first adults of the pest have been seen at the end of May and they have been seen during period of May to October in both years. However, the pest reached its highest level at June-July and created two peak points. The adults of T. orientalis continued until mid of the October which was harvesting time for rice. The highest adults (55 adults) were caught by way of D-vac on 29 June 2010 in Siverek-Üzümlük, while 37 adults/ sweeping net were recorded in Ergani-Demirli on 9 July 2011.According to the results of this study it was determined that the larvae of T. orientalis were active and cause damage from the end of May, which was planting time for rice, during months of June and July, however, the adults of this fly were active until harvesting time. In addition, the infestation ratio, males, females and larvae of the pest have been determined in the research area.
Keywords: Karacadağ rice, population development, Tipula orientalis
ÖzetBu çalışma Güneydoğu Anadolu Bölgesi'nde kendine has kokusu ve aroması bulunan ve yöre insanı tarafından tercih edilen Karacadağ çeltik alanlarında 2010-2011 yıllarında Şanlıurfa (Siverek-Üzümlük), Diyarbakır (Ergani-Demirli, Çınar-Kuyuluhöyük ve Hazro-Düzevler) köylerinde bostan sineği Tipula orientalis Laskschewitz (Diptera: Tipulidae)'in bulaşıklık durumunu ve popülasyon değişimini belirlemek amacıyla yürütülmüştür. Örneklemelerde atrap, D-vac ve elle toplama yöntemleri kullanılmıştır.Çalışmada elde edilen sonuçlara göre; T. orientalis'in ilk ergin çıkışı çeltik ekiminin yapıldığı mayıs ayının sonunda başlamış ve çalışmanın her iki yılında da mayıs-eylül ayları boyunca görülmüş ancak zararlı HaziranTemmuz aylarında en yüksek seviyeye ulaşarak iki tepe noktası oluşturmuştur. Bostan sineğine ait ergin uçuşları hasadın yapılacağı tarih olan ekim ayının ortalarına kadar sürmüştür. Atrap ve D-vac yardımı ile 2010 yılında yakalanan ergin sayısı en fazla 55 ergin/D-vac Siverek Üzümlük köyünde (29.VI.2010) bulunurken, 2011 yılında ise 37 ergin/atrap (09.VII.2011) ile Ergani Demirli köyünde gerçekleşmiştir. Bu çalışma ile T.orientalis'in çeltiğin ekildiği Mayıs ayının sonundan Haziran ve Temmuz aylarına kadar larvalarının aktif olduğu ve zarar verdiği ancak erginlerinin ise hasada kadar doğada aktif olarak bulunduğu tespit edilmiştir. Ayrıca çalışmanın yürütüldüğü her iki alanın da zararlı ile bulaşıklık olduğu tespit edilmiş, zararlının e...
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.