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WATER EXTRACTS OF HARGAL PLANT (Solenostemma argel, Del Hyne) AND USHER (Calotropis procera Ail) LEAVES AS NATURAL INSECTICIDES AGAINST MOSQUITO LARVAE

How to cite

Prof. Dr. Awad Khalaf Allah Taha ,Feiha M. Hag El Tayeb1 ,Hatim Guma Mardi ,Omar A. A. SidAhmed ,2009, WATER EXTRACTS OF HARGAL PLANT (Solenostemma argel, Del Hyne) AND USHER (Calotropis procera Ail) LEAVES AS NATURAL INSECTICIDES AGAINST MOSQUITO LARVAE,Journal of Science and Technology,10 (3) ,pp:67-76

Authors:
By Prof. Dr. Awad Khalaf Allah Taha ,Feiha M. Hag El Tayeb1 ,Hatim Guma Mardi ,Omar A. A. SidAhmed ,
Year:
2009
Keywords
Solenostemma argel, Calotropis procera, Anopheles arabiensis, Culex quinquefasciatus, water extract
Abstract
This study was carried out to evaluate the insecticidal efficacy of water extracts of Hargal plant, Solenostemma argel Del Hyne, and Usher, Calotropis procera Ail, leaves against the larvae of two mosquito species, Anopheles arabiensis and Culex quinquefasciatus. The synthetic larvicide, Abate® (Temphos), was used as a standard. Statistical analysis showed significant differences between the tested concentrations of each plant, with activity increases progressively with dosage rates. The highest concentrations of the two plants gave the best and comparable results with that of standard insecticide, Temphos. Hargal extract showed the best LD50 against Cx. quinquefasciatus (0.006ml/L) and An. arabiensis (0.140ml/L), as compared with Usher extract (0.108 and 0.263 ml/L, respectively). The current results were considered promising to proceed in studying the bioactive plants which represent an environmentally sound alternative for the synthetic larvicides.
الملخص
أجريت هذه الدراسة لتقييم فعالية المحلول المائى لنباتى الحرجل والعشر ضد يرقات نوعين من البعوض، الأنوفلس و الكيولكس. استخدم مبيد أبيت (تيمفوس) كمبيد قياسى. أظهر التحليل الاحصائى فروقات معنوية بين التركيزات المختبرة من المحلول المائى لكل نبات مع زيادة الفعالية تدريجياً مع التركيزات. التركيزات الأعلي لكل من النباتين أعطت أفضل النتائج بالمقارنة مع تركيز المبيد القياسي تيمفوس. أعطي مستخلص الحرجل أحسن الجرعات النصفية القاتلة ليرقات كل من الكيوليكس (0.006 مجم/ل) والأنوفلس (0.14 مجم/ل) مقارنة مع مستخلص العشر الذي أعطي (0.108 مجم/ل) و (0.263 مجم/ل) للنوعين علي التوالي. أعتبرت النتائج الحالية واعدة للمضي قدماً في دراسة النباتات ذات النشاط البيولوجي, والتي تمثل بدائل صديقة للبيئة لمبيدات اليرقات المصنعة
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