Biological Control of Duranta Aphid, Aphis durantae Theobald by Release Coccinella septempunctata L. on Duranta Plants under Glasshouse Conditions | ||||
| Egyptian Academic Journal of Biological Sciences, F. Toxicology & Pest Control | ||||
| Article 4, Volume 11, Issue 1, January 2019, Page 39-49 PDF (1.04 MB) | ||||
| Document Type: Original Article | ||||
| DOI: 10.21608/eajbsf.2019.28797 | ||||
 View on SCiNiTO | ||||
| Authors | ||||
| Emam A. S.; Samia A. Yassin; Faragalla F. H. | ||||
| Plant Protection Research Institute, A.R.C., Dokki, Giza, Egypt | ||||
| Abstract | ||||
| This study was carried out to evaluate the management of Duranta aphid Aphis durantae Theobald (Homoptera: Aphididae) which infesting duranta plantsby releasing different levels of the seven- spotted lady beetle, Coccinella septempunctata L. (Coleoptera: Coccinellidae). This study was carried out at two locations (Governorates), The International Garden, Cairo Governorate and El-Orman Garden, Giza Governorate during successive season 2018 under glasshouse conditions. The seven- spotted lady beetle, C. septempunctata was released for one time at early February on durantaplants at the two locations at rates of 30, 60 and 90 eggs/plant. In the first level of release (30 eggs/plant), at Cairo Governorate the reduction percentages in the population ofDuranta aphid, A. durantae increased gradually whereas it were 24.0, 34.4, 44.6, 57.1 and 66.6% on mid-February, first-March, mid-March, first-April and mid-April, respectively. The same trend was achieved at Giza Governorate. Also, in the second level of release (60 eggs/plant), at Cairo Governorate the reduction percentages in the population of A. durantae increased gradually whereas it were 27.1, 40.2, 50.3, 60.0 and 69.7% on mid-February, first-March, mid-March, first-April and mid-April, respectively. The same trend was achieved at Giza Governorate. Lastly, the third level of release (90 eggs/plant), at Cairo Governorate the reduction percentages in the population of A. durantae increased gradually whereas it were 31.3, 46.0, 58.7, 68.3 and 74.1% on mid-February, first-March, mid-March, first-April and mid-April, respectively. In addition, the same trend was achieved at Giza Governorate. | ||||
| Keywords | ||||
| biological control; Duranta aphid; Coccinella septempunctata L; glasshouse conditions | ||||
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