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- Title
Aydın İli İkinci Ürün Pamukta (Gossypium hirsutum L.) Farklı Azot Dozlarının Sokucu-Emicilerin ve Doğal Düşmanların Popülasyonları Üzerine Etkileri.
- Authors
ÇOPUL, Sergül; GENÇSOYLU, İbrahim
- Abstract
This study was conducted at the Experimental Area of Nazilli Cotton Researh Institute in second crop cotton season in years, 2015-2017. It was aimed to determine different doses of nitrogen fertilizer (0, 70, 140 and 210 kg N ha-1) on abudance of pests and their predators. Özbek 105, Gloria, Julia and Lydia cotton varieties were used as cotton varieties. As a result of the pests observations in the study, the variations of population densities of the pest species Aphis gossypii Glover (Hem.: Aphididae), Empoasca decipiens Paoli + Asymmetrasca decedens (Paoli) (Hem.: Cicadellidae), Bemisia tabaci (Gennadius) (Hem.: Aleyrodidae), Thrips tabaci Lindeman (Thy: Thripidae) and Tetranychus urticae Koch (Acarina: Tetranychidae) were assessed for the different nitrogen doses and cotton varieties. The increase at the amount of nitrogen dose has allowed an increase in population densities of the pest insects species in all cotton varieties studied. In the study, predatory species; Aeolothrips spp. (Thys.: Aeolothripidae), Chrysoperla carnea (Stephens) (Neuroptera: Chrysopidae), Campylomma diversicornis Reuter (Hem.: Miridae), Nabis spp. (Hem.: Nabidae), Orius spp. (Hem.: Anthocoridae), Adonia variegata (Goeze) (Col.: Coccinellidae), Coccinella septempunctata Linnaeus (Coleoptera: Coccinellidae), Coccinella undecimpunctata Linnaeus (Col.: Coccinellidae) and Scymnus spp. (Col.: Coccinellidae) were identified. There was a positive relationship among the nitrogen doses and the population densities of the predators. In the light of the findings obtained from the study, the importance of fertilization in the control tactics performed against pest insects has been revealed. The application of nitrogen dose with (150 kg N ha-1) was recomended, leading economic and ecological production of cotton, and also creating a balance factor that limits the pest's population development in cotton.
- Subjects
SWEETPOTATO whitefly; INSECT population density; COTTON aphid; CHRYSOPERLA carnea; SEVEN-spotted ladybug; TWO-spotted spider mite; INSECT pests
- Publication
Journal of Adnan Menderes University, Agricultural Faculty, 2020, Vol 17, Issue 2, p281
- ISSN
1304-7787
- Publication type
Article
- DOI
10.25308/aduziraat.773007