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LIFE TABLE, NUMERICAL AND FUNCTIONAL RESPONSE OF ADALIA BIPUNCTATA L. FEEDING ON CHAITOPHORUS LEUCOMEL4S KOCH. BEING A POPLAR PEST

Kavaklarda Zararlı Chaitophorus Leucomelas Koch.(Homoptera:Chaitophoridae) Üzerinde Beslenen Adalia Bipunctata L.(Coleoptera:Coccinellidae)'nın Sayısal, İşlevsel Tepkisi ve Yaşam Çizelgesi

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C.leucomelas is an important pest on the leaves of poplar trees in Van province . It has been observed during our survey studies that A.A. bipunctata has fed on this aphid species. Hence, it was aimed in this study to reveal whether A. bipunctata is an effective predator against to C leucomelas. · .•' ·Life table, numerical and functional response of A.bipunctata feedwith five different number individuals (4,8,16,32,64) of C. leucomelas taken daily from poplar trees were found . All experiments has beerH;onducted inchamber conditions 25±1°C, %60±5 relative humiditY, 16/8 light period and in glass pots covered with a tent their round top .It has been conduced that C I eucomelas is as a suitable food for A.bipunctata. Briefly, it was not found any difference beetwen A. bipunctata feeding on 32 and 64 aphids, in view of the period of development stage and oviposition, also the daily number of laying eggs.They were found the net production rate(Ru) 374,78 female/female , the intrinstic rate of increase(rm) 0,21 female/female/da y and the generation mean time(T) 27,7 day.

C. leucomelas Van ilinde kavak ağaçlarının yapraklarıyla beslenen önemli bir zararlıdır. Yapılan arazi çalışmaları sırasında A. bipunctata ' nın bu afit üzerinde beslendiği saptanmıştır. Bu çalışmada A. bipunctata' nın C. leucomelas' a karşı etkili bir avc1 olup olmadrgmm ortaya 91kanlmas1 ama9larum rr.Hergiin dogadaki kavak aga9lanmn yapraklanndan alman C. leucomelas' m be farkh say1daki(4,8,16,32,64) bireyleri ile beslenen A. bipunctata'mn say1sal ve ilevsel tepkisi ile yaam 9izelgesi bulunmu ur.·· <;al1malar, 25±1°C s1cak1Ik, %60±5 orantrh nem ve 16 saat aydmlik periyotta ag1zlan tulbentle kaph cam kavanozlarda yap11nu t1r.Sonw; olarak C.l eucomelas' m A. bipunctata'mn tercih ettigi bir·.. konuk9u oldugu, 32 ve 64 av ile beslenen avcilann geli me donemleri , ovi­. ·pozisyon silreleri ve gunde ortalama bifaktiklan yumurta sayrlan at;:ismdan aralannda fark olmadig1, biraktlan toplam yumurta sayllan arasmdak.i farkm ise istatistiki olarak onemsiz oldugu bulunmu tur.A. bipunctata'mn Yam 9izelgesi olurularak Net iireme giicii (Ro) 374,78 dii/dii, kahtsal iireme kapasitesi (rm) 0,21 dii/dii/giin . ve ortalan1a do! siiresi(T) 27,7 gun olarak saptanm1tlr.

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