Aphis gossypii Glover (Hemiptera: Aphididae)’nin Biyolojik Özelliklerine Ana Yaşının Etkileri

Pamuk yaprakbiti, Aphis gossypii Glover (Hemiptera: Aphididae) pamuk, kabak, turunçgiller ve örtüaltı sebzelerinde önemli zararlar meydana getiren yaprak bitlerinden biridir. Bu çalışmada pamuk yaprak bitinin en iyi gelişme, üreme ve canlı kalma oranlarının hangi ana yaşında doğan yavrularından elde edildiği araştırılmıştır. Bu amaçla ana bireyin 1., 2., 3. günlerde, 7., 8., 9. günlerde ve 13., 14., 15. günlerde doğurduğu yavru bireylerden genç, orta ve yaşlı popülasyon grupları oluşturulmuştur. Her bir popülasyon grubu için yaşa bağlı yaşam çizelgesi parametreleri ayrı ayrı hesaplanmıştır. Çalışma sonucunda genç, orta ve yaşlı popülasyon gruplarının hesaplanan yaşam çizelgesi parametreleri; kalıtsal üreme yeteneği (rm) 0,292, 0,363 ve 0,305 dişi/dişi/gün, net üreme gücü (Ro) 22,207, 23,425 ve 22,881 dişi/dişi, ortalama döl süresi (To) 10,610, 8,673 ve 10,259 gün, toplam üreme oranı (GRR) 37,509, 43,174 ve 44,525 dişi/dişi, artış oranı sınırı (λ) 1,339, 1,438 ve 1,356 dişi/gün olarak bulunmuştur. Ergin ömrü 12,10, 11,14 ve 10,26 gün, preovipozisyon süresi tüm popülasyon gruplarında 0,00 gün, ovipozisyon süresi sırasıyla 14,00, 13,33 ve 14,12 gün, postovipozisyon süresi sırasıyla 1,60, 1,47 ve 1,80 gün ve döl süresi sırasıyla 7,52, 6,75 ve 7,25 gün olarak belirlenmiştir.

Anahtar Kelimeler:

Aphis gossypii, pamuk yaprakbiti

Effects of Maternal Age on Biological Characteristics of Aphis gossypii Glover (Hemiptera: Aphididae)

Cotton aphid, Aphis gossypii Glover (Hemiptera: Aphididae) is one of the aphids that cause significant damage to cotton, cucurbits, citrus fruits and greenhouse-grown vegetables. In this study the best developmental, reproduction and survival rates of cotton aphids were investigated from the offspring at which maternal age. For this purpose, young, middle and older-aged group populations were constituted offspring bred at the 1st, 2nd, 3rd days, 7th, 8th, 9th days and 13th, 14th, 15th days of oviposition period of maternal aphids, respectively. Age dependent life table parameters were calculated separately for each population group. As a result of the study parameters obtained for intrinsic rate of increase (rm) 0.292, 0.363 and 0.305 females/ female/ day, net reproductive rates (Ro) 22.207, 23.425 and 22.881 females/ female, mean generation time (To) 10.610, 8.673 and 10.259 days, gross reproduction rate (GRR) 37.509, 43.174 and 44.525 females/ female, finite rate of increase (λ) were found to be 1.339, 1.438, and 1.356 females/ days respectively for Aphis gossypii young, middle and older-aged population groups. The adult life times were 12.10, 11.14 and 10.26 days, the preoviposition period all population groups were 0.00 days, the oviposition period were 14.00, 13.33 and 14.12 days, the postoviposition period were 1.60, 1.47 and 1.80 days respectively and the generation time were 7.52, 6.75 and 7.25 days, respectively

Keywords:

Aphis gossypii, cotton aphid,

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