EVALUATION OF CERTAIN SAMPLING METHODS FOR ADULTS OF Bemisia SPP. (Homoptera: Aleyrodidae) AND SOYBEAN STEM FLY, Melanagromyza cunctans MEIGEN (Diptera: Agromyzidae) ON SOYBEAN PLANTATIONS AT MANSOURA DISTRICT.

Abdel-Salam, A. H.; Abou-El Naga, A. M.; Ghanim, A. A.; El-Naggar, M. E.; Mohamed, A. M.

doi:10.21608/jppp.2010.86889

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	EVALUATION OF CERTAIN SAMPLING METHODS FOR ADULTS OF Bemisia SPP. (Homoptera: Aleyrodidae) AND SOYBEAN STEM FLY, Melanagromyza cunctans MEIGEN (Diptera: Agromyzidae) ON SOYBEAN PLANTATIONS AT MANSOURA DISTRICT.
Article 7, Volume 1, Issue 7, July 2010, Page 527-538 PDF (481.71 K)
Document Type: Original Article
DOI: 10.21608/jppp.2010.86889
Authors
A. H. Abdel-Salam ¹; A. M. Abou-El Naga¹; A. A. Ghanim¹; M. E. El-Naggar²; A. M. Mohamed²
¹Economic Entomology Department, Faculty of Agriculture, Mansoura University, Mansoura 35516, Egypt.
²Plant Protection Research Institute, Agricultural Research Center, Ministry of Agriculture, Egypt.
Abstract
Sampling of Bemisia spp. and M. cunctans was carried out at Mansoura district, Dakahlia Governorate during 2008 and 2009 seasons. We examined several types of yellow sticky cards (vertically oriented cylinder, vertically oriented two-sided traps and vertically oriented, one-sided traps), three colored of water pan traps (yellow, blue and red), the plastic cup trap (CC trap), sweep-net that indirectly measured adult abundance based on activity and visual examination (leave-turn) and black pan methods as two direct count sampling methods based on the census of adults on or from the plant. The count of Bemisia spp. was highly significantly effect by sampling methods. Among the sampling methods, cylinder sticky traps was caught the most adults of whitefly during the two seasons. Furthermore, there were no significant differences between one sided sticky traps, CC traps, black pan, vacuum sampler, whole-plant, and leaf-turn method. In addition, there were no significant differences between cylinder sticky and two-sided traps. The black pan had the lowest associated relative variation (RV) value in both seasons. Whereas, the whole-plant had the highest calculated RV value in the first season. While in the second season, the cylinder sticky traps had the highest calculated RV value. The black pan method had the highest calculated RNP value (most efficient) compared with all other sampling methods. Whereas, the vacuum sampler had lowest associated RNV value in both seasons. The count of M. cunctans was highly significantly effect by sampling methods. Among the sampling methods, cylinder sticky traps caught the most adult of M. cunctans during the two seasons. Furthermore, there were no significant differences between yellow water pan traps, visual examination, and sweep-net. Moreover, there was no significant differences between one sided sticky traps, whole-plant, blue water pan traps, red water pan traps and two-sided sticky traps. The cylinder sticky traps had the lowest associated RV value in 2008 season. Whereas, in 2009 season, the two-sided sticky traps had lowest associated RV value.
Keywords
Bemisia spp; Melanagromyza cunctans; sampling methods; soybean


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