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Effect of sugar nutrition on the predator life cycle of Macrolophus caliginosus (Wagner) (Hemiptera:Miridae) and its predation efficacy

تأثير التغذية السكرية في دورة حياة المفترس Macrolophus caliginosus (Wagner) (Hemiptera:Miridae) و كفاءته الافتراسية

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




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Macrolophus caliginosus (Hemiptera: Miridae) is a zoophytophagous predator widely used in integrated pest management programs in both greenhouse and open-field . Mass rearing of Macrolophus caliginosus is greatly dependent on Ephestia kuehniella Zeller (Lepidoptera: Pyralidae) eggs as food source. Moreover, the addition of this factitious prey after the inoculative releases of Macrolophus caliginosus under field conditions is recommended to facilitate establishment of this mirid. However, E. kuehniella eggs are expensive and availability is limited. One possible strategy to reduce the amount of E. kuehniella eggs needed is the provision of sugar.This study was conducted during the period between May and November in 2014 in the labs of the Lattakia center of rearing bio enemis. In this work, the effect of sucrose as nutritional supplement on selected life-history traits of M.caligenosus was studied. The addition of sucrose (100 g/l) ad libitum to a diet of E. kuehniella eggs significantly increased the progeny of Macrolophus caliginosus and did not affect survival of nymphs nor developmental time. Moreover, addition of sucrose significantly reduced the number of E. kuehniella eggs consumed. These results may have practical implications of interest in mass rearing systems of M.caliginosus and its management in fields and greenhouses as a part of integrated control programs.


Artificial intelligence review:
Research summary
تتناول هذه الدراسة تأثير التغذية السكرية على دورة حياة وكفاءة الافتراس للمفترس Macrolophus caliginosus، وهو من المفترسات الهامة المستخدمة في برامج الإدارة المتكاملة للآفات، خاصة في الزراعات المحمية. تعتمد التربية الكمية لهذا المفترس بشكل أساسي على بيوض حشرة Ephestia kuehniella، التي تعتبر مكلفة في الإنتاج. تهدف الدراسة إلى تقليل كمية البيض المستخدمة في تربية المفترس من خلال إضافة التغذية السكرية. أظهرت النتائج أن إضافة السكر إلى النظام الغذائي للمفترس قللت من كمية البيض المستهلكة وزادت من سرعة تطور الحوريات، مما يجعل استخدامه أكثر اقتصادية. كما بينت الدراسة أن التغذية السكرية لم تؤثر على بقاء الحوريات ولكنها قللت من مدة تطورها. تشير النتائج إلى إمكانية استخدام التغذية السكرية كوسيلة لتقليل تكاليف التربية المخبرية للمفترس، مما يعزز من فعاليته في برامج المكافحة المتكاملة للآفات.
Critical review
دراسة نقدية: تعتبر هذه الدراسة خطوة هامة نحو تحسين كفاءة تربية المفترسات الحيوية وتقليل تكاليفها. ومع ذلك، هناك بعض النقاط التي يمكن تطويرها. أولاً، الدراسة تركز بشكل كبير على تأثير التغذية السكرية في بيئة مخبرية، مما يثير التساؤلات حول فعالية هذه النتائج في الظروف الحقلية الفعلية. ثانياً، لم تتناول الدراسة تأثير التغذية السكرية على الجوانب الأخرى من حياة المفترس مثل سلوكه التزاوجي وقدرته على التكيف مع أنواع مختلفة من الفرائس. أخيراً، من المهم إجراء دراسات موسعة تشمل أنواع أخرى من المفترسات للتحقق من عمومية النتائج وتطبيقها على نطاق أوسع.
Questions related to the research
  1. ما هو الهدف الرئيسي من الدراسة؟

    الهدف الرئيسي من الدراسة هو تقليل كمية البيض المستخدمة في تربية المفترس Macrolophus caliginosus من خلال إضافة التغذية السكرية، مما يجعل استخدامه أكثر اقتصادية.

  2. ما هي النتائج الرئيسية التي توصلت إليها الدراسة؟

    أظهرت النتائج أن إضافة التغذية السكرية قللت من كمية البيض المستهلكة وزادت من سرعة تطور الحوريات، دون التأثير على بقاء الحوريات.

  3. ما هي أهمية استخدام التغذية السكرية في تربية المفترس؟

    استخدام التغذية السكرية يقلل من كمية البيض المستهلكة، مما يقلل من تكاليف التربية المخبرية ويزيد من فعالية المفترس في برامج المكافحة المتكاملة للآفات.

  4. ما هي التوصيات المستقبلية التي قدمتها الدراسة؟

    توصي الدراسة بإجراء دراسات موسعة تشمل أنواع أخرى من المفترسات والتحقق من فعالية التغذية السكرية في الظروف الحقلية الفعلية.


References used
Armer, C,A;Wiedenmann, R,N;Bush,D,R. Plant feeding site selection on soybean by the facultative phytophagous predator Orius insidiosus.Entomology Experince Application. 186,1998,109-118
Castane, c;Zapata ,R. Rearing the predatory bug Macrolophus caliginosus on a meat based diet .Biologecalcontrol. 34,2005,66-72
Castane, C;Quero, R;Riudavets, J. The brine shrimp Artemia sp. As alternative prey for rearing the predator bug Macrolophus caliginosus .Biologecal control. 38,2006, 405-412
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