Document Details

Document Type : Article In Journal 
Document Title :
Insecticidal activity of certain plant extracts against potato tuber moth Phthorimaea operculella ( Zeller ).
تأثير المبيدات الحشرية لبعض المستخلصات النباتية علي يرقات درنات البطاطس
 
Subject : Insecticidal activity of certain plant extracts against potato tuber moth 
Document Language : English 
Abstract : Abstract Laboratory experiments were conducted under controlled temperature ( 27±1˚C ) and R.H (65±5%) to test efficiency and persistence effect of plant extracts of black pepper ( Piper nigrum ) and hungarium chamomile ( Matricaria chamomile ) on larval stage of Phthorimaea operculella (Zeller) dissolved in four solvents with high polarity ( Petroleum ether, Chloroform, acetone and water ). The present work is preformed to study the effect of one and multiple application of different concentration ( 5, 10 and 15% )of the tested plant extracts on 4th and 5th larval instar of potato tuber moth Ph. Operculella after different periods of times. Results revealed that the percent mortality increased significantly with increasing the concentration of the ( 15> 10> 5% ). Also, the reduction of weight increased significantly when the extracts of the two plants applied after 24 h, antifeeding or repellent effects was also observed and the decreasing in weight continue through the following 120 at some concentration ( 10 and 15% ) of some extracts. Again multiple application shows a marked decline in the pervious aspects at all tested doses for different solvents of the two plants. 
ISSN : 2090-0511 
Journal Name : the egyptian society of experimental biology 
Volume : 6 
Issue Number : 2 
Publishing Year : 1431 AH
2010 AD 
Article Type : Article 
Added Date : Wednesday, May 23, 2012 

Researchers

Researcher Name (Arabic)Researcher Name (English)Researcher TypeDr GradeEmail
نجاة علي خاطرKhatter, Najat AliInvestigatorDoctoratenajat.khatter4@gmail.com

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