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Al-Habshy, A., Amer, S., Abd – Elsamed, A. (2018). Assessment the Damage on Sugar Beet Plants Caused by the Infestion with Beet Fly, Pegomyia mixta (Vill) in Sharkia Governorate. Journal of Plant Protection and Pathology, 9(11), 763-766. doi: 10.21608/jppp.2018.44057
Aml Z. N. Al-Habshy; S. A. M. Amer; A. A. Abd – Elsamed. "Assessment the Damage on Sugar Beet Plants Caused by the Infestion with Beet Fly, Pegomyia mixta (Vill) in Sharkia Governorate". Journal of Plant Protection and Pathology, 9, 11, 2018, 763-766. doi: 10.21608/jppp.2018.44057
Al-Habshy, A., Amer, S., Abd – Elsamed, A. (2018). 'Assessment the Damage on Sugar Beet Plants Caused by the Infestion with Beet Fly, Pegomyia mixta (Vill) in Sharkia Governorate', Journal of Plant Protection and Pathology, 9(11), pp. 763-766. doi: 10.21608/jppp.2018.44057
Al-Habshy, A., Amer, S., Abd – Elsamed, A. Assessment the Damage on Sugar Beet Plants Caused by the Infestion with Beet Fly, Pegomyia mixta (Vill) in Sharkia Governorate. Journal of Plant Protection and Pathology, 2018; 9(11): 763-766. doi: 10.21608/jppp.2018.44057

Assessment the Damage on Sugar Beet Plants Caused by the Infestion with Beet Fly, Pegomyia mixta (Vill) in Sharkia Governorate

Article 9, Volume 9, Issue 11, November 2018, Page 763-766  XML PDF (233.15 K)
Document Type: Original Article
DOI: 10.21608/jppp.2018.44057
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Authors
Aml Z. N. Al-Habshy1; S. A. M. Amer1; A. A. Abd – Elsamed2
1Plant Protection Research Institute, Agric. Res. Center Dokii, Giza, Egypt.
2Plant Protection Research Institute, Agric. Res. Center Dokii, Giza, Egypt
Abstract
The present work was conducted during two successive seasons 2016 / 2017 and 2017/2018 in Diarb – Nigm district, Sharkia Governorate, Egypt to study assessment the damage of yield of sugar beet to infestation of Pegomyia mixta (Vill). The results showed that, the relationship between the yield of sugar beet and infestation of P. mixta was negative correlation i.e.; the increasing larval infestation caused the decreasing yield vice versa. The economic threshold level for P. mixta was 3.7 larvae /plant and the economic injury level was 4.1 larvae / plant in the first season, while, in the second season, the economic threshold level for P. mixta was 3.9 larvae / plant and  while, in the second season the economic injury level was 4.0 larvae / plant.
Keywords
Sugar beet (Beta vulgaris L.); larvae for Pegomyia mixta (Vill); economic threshold level; economic injury level and yield
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