EN
TR
Investigations on the economic threshold of Rose leafroller, <em>Archips rosanus</em> (L.) (Lepidoptera:Tortricidae).
Abstract
Studies were carried out in cherry orchards in İzmir-Kemalpaşa between 1994 - 1997 to determine the economic threshold of Rose leafroller [Archips rosanus L. (Lep.: Tortricidae)]. All egg masses laid at the 1.5 m height from the ground were marked and counted. The numbers of egg masses per tree were taken as characters; the numbers of trees which have the same egg masses numbers were taken as replications. Larval damage rates caused by A.rosanus were counted on cherry flower buds, flowers, leaf bouquets and fruits by checking 100 plant parts per tree. These counts indicated that the most important damage was on the leaf bouquets of cherry orchards. In addition to these countings; at the end of larval development period, the leaves present at the lower, middle and upper levels of marked trees and the four different sites of each heights were examined. 100 of leaves were chosen randomly and counted from the point of view of damage rate and shape for a general estimation. As a result of the studies, economic threshold of A.rosanus was found as 7 egg masses (laid at the 1.5 m height from the ground) per tree and the larval damage as 6%; it was also found that the regression line was as y=2.5+0.66x.
Keywords
Ayrıntılar
Birincil Dil
İngilizce
Konular
-
Bölüm
-
Yayımlanma Tarihi
13 Aralık 1999
Gönderilme Tarihi
23 Aralık 2008
Kabul Tarihi
-
Yayımlandığı Sayı
Yıl 1999 Cilt: 39 Sayı: 3
APA
Ulu, O., & Önuçar, A. (1999). Investigations on the economic threshold of Rose leafroller, <em>Archips rosanus</em> (L.) (Lepidoptera:Tortricidae). Plant Protection Bulletin, 39(3). https://izlik.org/JA46GZ39LS
AMA
1.Ulu O, Önuçar A. Investigations on the economic threshold of Rose leafroller, <em>Archips rosanus</em> (L.) (Lepidoptera:Tortricidae). Plant Protection Bulletin. 1999;39(3). https://izlik.org/JA46GZ39LS
Chicago
Ulu, O., ve A. Önuçar. 1999. “Investigations on the economic threshold of Rose leafroller, <em>Archips rosanus</em> (L.) (Lepidoptera:Tortricidae)”. Plant Protection Bulletin 39 (3). https://izlik.org/JA46GZ39LS.
EndNote
Ulu O, Önuçar A (01 Aralık 1999) Investigations on the economic threshold of Rose leafroller, <em>Archips rosanus</em> (L.) (Lepidoptera:Tortricidae). Plant Protection Bulletin 39 3
IEEE
[1]O. Ulu ve A. Önuçar, “Investigations on the economic threshold of Rose leafroller, <em>Archips rosanus</em> (L.) (Lepidoptera:Tortricidae)”., Plant Protection Bulletin, c. 39, sy 3, Ara. 1999, [çevrimiçi]. Erişim adresi: https://izlik.org/JA46GZ39LS
ISNAD
Ulu, O. - Önuçar, A. “Investigations on the economic threshold of Rose leafroller, <em>Archips rosanus</em> (L.) (Lepidoptera:Tortricidae)”. Plant Protection Bulletin 39/3 (01 Aralık 1999). https://izlik.org/JA46GZ39LS.
JAMA
1.Ulu O, Önuçar A. Investigations on the economic threshold of Rose leafroller, <em>Archips rosanus</em> (L.) (Lepidoptera:Tortricidae). Plant Protection Bulletin. 1999;39. Available at https://izlik.org/JA46GZ39LS.
MLA
Ulu, O., ve A. Önuçar. “Investigations on the economic threshold of Rose leafroller, <em>Archips rosanus</em> (L.) (Lepidoptera:Tortricidae)”. Plant Protection Bulletin, c. 39, sy 3, Aralık 1999, https://izlik.org/JA46GZ39LS.
Vancouver
1.O. Ulu, A. Önuçar. Investigations on the economic threshold of Rose leafroller, <em>Archips rosanus</em> (L.) (Lepidoptera:Tortricidae). Plant Protection Bulletin [Internet]. 01 Aralık 1999;39(3). Erişim adresi: https://izlik.org/JA46GZ39LS
