Ecological Studies on Beet Fly Pegomyia mixta (Vill) Infesting Sugar Beet Plants and Their Associated Predators in Sharkia Governorate, Egypt | ||||
| Egyptian Academic Journal of Biological Sciences. A, Entomology | ||||
| Article 6, Volume 11, Issue 6, December 2018, Page 51-61 PDF (633.76 K) | ||||
| Document Type: Original Article | ||||
| DOI: 10.21608/eajbsa.2018.25079 | ||||
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| Author | ||||
| Aml Al – Habshy Habshy | ||||
| Plant Prot. Res. Inst., Agric. Res. Cent., Dokii, Giza, Egypt | ||||
| Abstract | ||||
| The present work was carried out at Diarb- Nigm district, Sharkia Governorate, during the two sugar beet seasons 2015/2016 and 2016/2017, to study the seasonal fluctuation and number of generations of Pegomyia mixta (Vill) and seasonal fluctuation of the predators Coccinella undecimpunctata (L.), Paederus alfierii (Koch.), Chrysoperla Carnea(Stephens), Scymnus sp.andtrue spiders. The seasonal fluctuation of P. mixta (eggs and larvae) on sugar beet plants recorded two peaks during each season. Peaks of eggs were recorded in 22nd of February and 11th of April, in the first season, while the second season, these peaks were recorded in 27th of February and 17th of April. Peaks of larvae were recorded in 7th of March and 18th of April in the first season while the second season, it recorded in 13th of March and 24th of April. P. mixta eggs and larval were recorded were recorded three generations during each season. The peak of C. undecimpunctata and P. alfierii has occurred in 21th of March and 20th of March for the first and second seasons. The peak of C. Carneawas recorded in 14th of March and 13th of March for the two seasons. The peak of true spiders was recorded in 11th of April and 17th of April for the two seasons. The numbers of Scymnus sp was decreased for the two seasons. | ||||
| Keywords | ||||
| Beet Fly; Pegomyia mixta; Ecological studies; Sharkia Governorate. Egypt | ||||
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