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The impact of Smicronyx cyaneus Gyll. and Phytomyza orobanchia Kalt. in some phenological parameters of Orobanche ramosa L. in tomato fields

تأثير الإصابة بسوسة الهالوك Smicronyx cyaneus Gyll. و ذبابة الهالوك Phytomyza orobanchia Kalt. في بعض مؤشرات نمو الهالوك المتفرع Orobanche ramosa L. في حقول البندورة

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 Publication date 2015
and research's language is العربية
 Created by Shamra Editor




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The impact of larvae feeding of of the agromyzid fly (Phytomyza orobanchia Kalt., and curculionid weevil (Smicronyx cyaneus Gyll.), inside shoots and seed capsules of branched broomrape (Orobanche ramosa L.) which infested tomato, in some phenological parameters: shoot length, number capsules/shoot, wet and dry weight of shoot, were determined. The results indicate to the efficacy of larvae feeding in reduction of O. ramosa bio-mass, it caused significant reduction in the values of all studied parameters, of infested branched broomrape plants in comparison to healthy ones, While the mixed infestation of the both insects caused higher reduction in the values of these parameters, with high significant differences in: shoot length, number capsules/ shoot, and wet weight of infested shoot, in comparison with healthy ones. the reduction rate which resulted from mixed infestation reached to 55.5%, 58.8%, 76.7%, 57.2% for shoot length, number capsules/ shoot, wet weight and dry weigh respectively. The results indicate to the potential role of P. orobanchia and S. cyaneus in reduction the density of O. ramosa in tomato fields, at the Syrian coastal region.


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Research summary
تتناول الدراسة تأثير الإصابة بسوسة الهالوك (Smicronyx cyaneus Gyll.) وذبابة الهالوك (Phytomyza orobanchia Kalt.) على بعض مؤشرات نمو نبات الهالوك المتفرع (Orobanche ramosa L.) في حقول البندورة في الساحل السوري. تم تقييم تأثير تغذية يرقات الحشرتين على طول الفرع، عدد الكبسولات، الوزن الرطب والجاف للفرع. أظهرت النتائج أن الإصابة بالحشرتين أدت إلى خفض كبير في جميع المؤشرات المدروسة مقارنة بالنباتات السليمة. كما أن الإصابة المختلطة بالحشرتين معاً كانت لها تأثير أكبر في خفض القيم المدروسة. بلغ معدل الانخفاض الناتج عن الإصابة المختلطة 57.2% في طول الفرع، 76.7% في عدد الكبسولات، 58.8% في الوزن الرطب، و55.5% في الوزن الجاف. تشير النتائج إلى الدور المحتمل لهاتين الحشرتين في خفض كثافة الهالوك المتفرع في حقول البندورة، مما يمكن أن يكون له تأثير إيجابي في مكافحة هذا العشب الطفيلي.
Critical review
دراسة نقدية: تعتبر هذه الدراسة مهمة لأنها تسلط الضوء على مشكلة زراعية كبيرة وهي تأثير الهالوك المتفرع على محاصيل البندورة. ومع ذلك، يمكن أن تكون الدراسة أكثر شمولية إذا تم تضمين المزيد من المواقع الزراعية المختلفة لتأكيد النتائج. كما أن الدراسة لم تتناول تأثير العوامل البيئية الأخرى التي قد تؤثر على فعالية الحشرات في مكافحة الهالوك. بالإضافة إلى ذلك، يمكن أن تكون هناك حاجة لمزيد من الأبحاث لتحديد الآثار الجانبية المحتملة لاستخدام هذه الحشرات في المكافحة الحيوية على البيئة المحيطة.
Questions related to the research
  1. ما هو الهدف الرئيسي من الدراسة؟

    الهدف الرئيسي من الدراسة هو تقييم تأثير الإصابة بسوسة الهالوك وذبابة الهالوك على بعض مؤشرات نمو نبات الهالوك المتفرع في حقول البندورة في الساحل السوري.

  2. ما هي المؤشرات التي تم دراستها لتقييم تأثير الحشرات على الهالوك المتفرع؟

    تم دراسة تأثير الحشرات على طول الفرع، عدد الكبسولات، الوزن الرطب والجاف للفرع.

  3. ما هي النتائج الرئيسية التي توصلت إليها الدراسة؟

    أظهرت النتائج أن الإصابة بالحشرتين أدت إلى خفض كبير في جميع المؤشرات المدروسة مقارنة بالنباتات السليمة، وكانت الإصابة المختلطة بالحشرتين معاً لها تأثير أكبر.

  4. ما هو الدور المحتمل لسوسة الهالوك وذبابة الهالوك في مكافحة الهالوك المتفرع؟

    تشير النتائج إلى أن سوسة الهالوك وذبابة الهالوك يمكن أن تلعبا دوراً مهماً في خفض كثافة الهالوك المتفرع في حقول البندورة، مما يمكن أن يكون له تأثير إيجابي في مكافحة هذا العشب الطفيلي.


References used
AITABDALIH, F., A. HAMADACHE, M. KHEDDAM and M.E. MAATOUGUI. 1999. Le probleme de L'Orobanche en Algerie. In: Kroschel. J., M. Abderaihi, H. Betz (eds), Advances in parasitic weed control at on-farm level vol ІІ. Joint Action to control Orobanche in the WANA Region, Margraf Verlag, Weikersheim, Germany, 17-25
AL-ERYAN, M. A. S., M. M. M. ALTAHTAWY, H. K. EL-SHERIEF and A. M. H. ABU-SHALL. 2004. Efficacy of phytomyza orobanchia Kalt. In reduction of Orobanche crenata Forsk. Seed yield under semi-field condition. Egyptian Journal of biological Pest Control, 14(1), 237-242
BROCKERHOFF, E.G, T.M. WITHERS, M. KAY, W. FAULDS.1999. Impact of the Defoliator Ceiopus Japonicus (Coleoptera: Curculionidae) on Buddleja Davidii in the laboratory. Proc. 52nd N.Z. Plant Protection Conf. 113-118
GOLDSTEIN, J. H, M. SCHIFF, E. LAKE, B. BUTTERWORTH. 2008. Impact of the biological control agent Rhinoncomimus latipe (Coleoptera: Curculionidae) on mile-a-minute weed, Persicaria perfoliata, in field cages, Biological Control 46 , 417–423
KLEIN, O., J. KROSCHEL and J. SAUERBORN, 1999. Efficacite de lachers supplementaires de Phytomyza orobanchia Kalt.(Diptera: Agromyzidae) pour la lutte biologique contre l’Orobanche au Maroc. In: Kroschel. J., M. Abderaihi, H.Betz eds), Advances in parasitic weed control at on- farm level vol ІІ. Joint Action to control Orobanche in the WANA Region. Margraf Verlag, Weikersheim, Germany, 161-171
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