تأثير درجات حرارة التربية في نمو و معدل افتراس الأطوار غير الكاملة للمفترس Oenopia conglobata L. عند تغذيتها على منّ الدراق الأخضر Myzus persicae (Sulzer)
Abstract
درس تأثير درجة الحرارة في نمو الأطوار غير الكاملة للمفترسOenopia(=Harmonia) conglobata L. (Coleoptera:Coccinellidae), و في معدل افتراس الأعمار اليرقية لهذا المفترس عند تقديم حوريات منّ الدراق الأخضرMyzus persicae (Sulzer) (Homoptera:Aphididae) كفريسة على أوراق الفليفلة.
أنجزت التجارب على درجتي حرارة (25±2°س, 30±2°س), و رطوبة نسبية 75±5%, و 10:14 ساعة إضاءة/ظلام. أظهرت النتائج أن الزمن اللازم لتطور المفترس O. conglobata قد تأثر بدرجة الحرارة و كان عند درجتي الحرارة (25±2°س, 30±2°س) (22.5 ±1.8, 16.45±1.36) يوماً, على التوالي. بلغ متوسط استهلاك الأعمار اليرقية للمفترس O. conglobata : (18.60±2.44, 54.84±14.57, 101.50±16.09, 111.16±16.56) حورية منّ للعمر اليرقي الأول و الثاني و الثالث و الرابع على التوالي عند درجة الحرارة 25±2°س و (23.06±3.08, 54.42±12.65, 102.57±12.61, 155.50±21.85) حورية منّ على درجة الحرارة 30±2°س.
We studied the effect of temperature on the growth of immature stages of the predator Oenopia conglobata L. (Coleoptera: Coccinellidae) and on the predation rate of larval instars. The prey was the nymphs of green peach aphid Myzus persicae (Sulzer) (Homoptera: Aphididae) on pepper leaves. Experiment conditions were (25±2°c, 30±2°c), 75±5% RH, 14: 10 h(L: D) photoperiod.
Results showed that the developmental time of the predator O. conglobata was affected by temperature and was on the two temperatures (25±2°c, 30±2°c) : (16.45±1.36, 22.5±1.8) days, respectively. Consumption rate of larval stages of O. conglobata was (18.60±2.44, 54.84±14.57, 101.50±16.09, 111.16±16.56) aphid nymphs for first, second, third, and fourth larval instars, respectively, on the temperature 25±2°c, and (23.06±3.08, 54.42±12.65, 102.57±12.61, 155.50±21.85) aphid nymphs on the temperature 30±2°c.
Downloads
Published
How to Cite
Issue
Section
License
This work is licensed under a Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International License.
The authors retain the copyright and grant the right to publish in the magazine for the first time with the transfer of the commercial right to the Tishreen University Journal for Research and Scientific Studies - Biological Sciences Series
Under a CC BY- NC-SA 04 license that allows others to share the work with of the work's authorship and initial publication in this journal. Authors can use a copy of their articles in their scientific activity, and on their scientific websites, provided that the place of publication is indicted in Tishreen University Journal for Research and Scientific Studies - Biological Sciences Series . The Readers have the right to send, print and subscribe to the initial version of the article, and the title of Tishreen University Journal for Research and Scientific Studies - Biological Sciences Series Publisher
journal uses a CC BY-NC-SA license which mean
You are free to:
- Share — copy and redistribute the material in any medium or format
- Adapt — remix, transform, and build upon the material
- The licensor cannot revoke these freedoms as long as you follow the license terms.
- Attribution — You must give appropriate credit, provide a link to the license, and indicate if changes were made. You may do so in any reasonable manner, but not in any way that suggests the licensor endorses you or your use.
- NonCommercial — You may not use the material for commercial purposes.
- ShareAlike — If you remix, transform, or build upon the material, you must distribute your contributions under the same license as the original.
- No additional restrictions — You may not apply legal terms or technological measures that legally restrict others from doing anything the license permits.