Beneficial natural role of phytomyza orobanchia kalt against broom rape in Egypt and trial applied release of this bioagent
Abstract: A study was carried out during 97/1998 and 98/1999 winter seasons on broad-bean to estimate the exact natural beneficial role of the monophagous broom-rape fly, Phytomyza orobanchia Kalt, in destroying the immature seeds of the parasitic weed Orobanche crenata Forsk in fields of different Egyptian governorates. Percentages of infestation averaged 30.54 (min. 8.67 – max. 55) % in 1998 season and 55.28 (min. 18.67 – max. 83.97) % in 1999 indicating more abundance and activity in the latter season. This may be attributed to changes in environmental conditions and / or the reductions in insecticidal application in 1999 than 1998 season. Generally, in Egyptian fields, the fly proved as still active, naturally, in reducing the seed bank of broom-rape in soil, and this role has to be increased by inundative releases of the fly. Two weeks after releasing P. orobanchia in plastic screen cages covering faba-bean plants infested with broom-rape, the mean percentage of infested capsules was found to be increased about 7 times more than that recorded in the control cage, and this percentage remained higher for up to 5 weeks after release. Data proved the necessity of early release of the fly, followed by other releases.
Publication year 2001
Pages 2499-2506
Availability location المعمل المركزى لبحوث الحشائش -9 ش الجامعة -مركز البحوث الزراعية -جيزة
Availability number
Organization Name
serial title J. Agric. Sci. Mansoura Univ.
ISSN 1110-0346
Author(s) from ARC
External authors (outside ARC)
    فوزي شلبي كلية الزراعة بمشتهر
    لطفي عوض المشد مركز البحوث الزراعية-معمل بحوث الحشائش
Agris Categories Weeds and weed control
AGROVOC
TERMS		 Biological control. Egypt. Orobanche crenata. Phytomyza. Sterile insect release.
Publication Type Journal
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