Determination of Infestation Ratio of Spiny Bollworm (Earias insulana Boisd) (Lep.; Noctuidae) and Pink Bollworm (Pectinophora gossypiella Saund.)) (Lep.; Gelechiidae) on Different Cotton Varieties Grown as Second Crop in Şanlıurfa, Mardin Provinces

Öz

Infestation ratios of Spiny bollworm (Earias insulana Boisd) (Lep.; Noctuidae) and Pink bollworm (Pectinophora gossypiella Saund.) (Lep.; Gelechiidae) on second crop cotton varieties having different features were determined in the studies carried out in Kızıltepe and Akçakale plains during 2002 and 2003. The numbers of bolls infested and bolls having larvae infested with both injurious insects on the nectariless cotton varieties (ÇUNS-2, STV-825 ) were found in lower level. The lowest values were obtained on both hairless and nectariless cotton varieties ÇUNS-2. While high infestation levels were obtained from hairy and nectarous cotton varieties, the highest infestation level was obtained from both nectaried and glandless cotton varieties (NGF-63). The case of the features of nectariless and hairy being together can provide resistance to cotton plants against Spiny bollworm and Pink bollworm, nectaried and glandless together can increase the sensitivity against both insects. While the larvae of Spiny bollworm were determined mostly in Kızıltepe, the larvae of Pink bollworm were seen mostly in Akçakale

Anahtar Kelimeler

• Cotton
• Spiny Bollworm
• Pink Bollworm
• Şanlıurfa
• Mardin

Şanlıurfa ve Mardin illerinde İkinci Ürün Farklı Pamuk Çeşitlerinde Dikenlikurt (Earias insulana Boisd) (Lep.; Noctuidae) ve Pembekurt (Pectinophora gossypiella Saund.) (Lep.; Gelechiidae)’un Bulaşıklık Oranlarının Belirlenmesi

Öz

İkinci ürün olarak ekilen, farklı özelliklere sahip pamuk çeşitlerinde (Sayar-314, NGF-63, ÇUNS-2, Laçhata, Adana-98 ve STV-825 ) Dikenlikurt (Earias insulana Boisd) (Lep.; Noctuidae) ve Pembekurt (Pectinophora gossypiella Saund.) (Lep.; Gelechiidae)’un bulaşıklılık oranları 2002 ve 2003 yıllarında Kızıltepe ile 2003 yılında Akçakale ovalarında yürütülen çalışmalarla belirlenmiştir. Nektarsız pamuk çeşitlerinde (ÇUNS-2, STV-825 )her iki zararlı ile bulaşık koza ve larvalı koza sayıları daha düşük çıkmıştır. Hem tüysüz, hemde nektarsız olan pamuk çeşidinde (ÇUNS-2)ise en düşük değerler elde edilmiştir. Nektarlı ve tüylü pamuk çeşitlerinde yüksek bulaşıklık elde edilirken, en yüksek bulaşıklık ise hem nektarlı, hemde gossypolsuz pamuk çeşidinde (NGF-63) belirlenmiştir. Nektarsızlık ve tüysüzlük özelliklerinin bir arada bulunmasının, Dikenlikurt ve Pembekurt’a karşı dayanıklılık sağlayabileceği, nektarlılık ve gossypolsuzluk özelliğinin bir arada bulunmasının ise bu iki zararlıya karşı pamuk bitkisinin hassasiyetini arttırabileceği görülmüştür. Kızıltepe Ovası’nda Dikenlikurt larvaları, Akçakale Ovası’nda ise Pembekurt larvaları daha yüksek oranda bulunmuştur.

Anahtar Kelimeler

• Pamuk
• Dikenlikurt
• Pembekurt
• Şanlıurfa
• Mardin

Kaynakça

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