Home Articles List Article Information
Egyptian Journal of Agricultural Research
Journal Archive
Volume Volume 103 (2025)
Volume Volume 102 (2024)
Volume Volume 101 (2023)
Volume Volume 100 (2022)
Volume Volume 99 (2021)
Volume Volume 98 (2020)
Volume Volume 97 (2019)
Volume Volume 96 (2018)
Volume Volume 95 (2017)
Volume Volume 94 (2016)
Volume Volume 93 (2015)
Volume Volume 92 (2014)
Volume Volume 91 (2013)
Volume Volume 90 (2012)
Volume Volume 89 (2011)
Volume Volume 88 (2010)
Volume Volume 87 (2009)
Volume Volume 86 (2008)
Volume Volume 85 (2007)
Volume Volume 84 (2006)
Volume Volume 83 (2005)
Volume Volume 82 (2004)
Volume Volume 81 (2003)
Volume Volume 80 (2002)
Volume Volume 79 (2001)
Volume Volume 78 (2000)
Volume Volume 77 (1999)
Volume Volume 76 (1998)
Volume Volume 75 (1997)
Volume Volume 74 (1996)
HAMADA, N., FARRAG, R., NASR, F. (1998). SYNTHESIS AND BIOLOGICAL EFFECTS OF PYRAZOLINE DERIVATIVES AGAINST THE COTTON LEAFWORM, SPODOPTERA LITTORAL'S BOISD. Egyptian Journal of Agricultural Research, 76(3), 1017-1026. doi: 10.21608/ejar.1998.358471
NAGWA M. HAMADA; RAMADAN M. FARRAG; FEEBY N. NASR. "SYNTHESIS AND BIOLOGICAL EFFECTS OF PYRAZOLINE DERIVATIVES AGAINST THE COTTON LEAFWORM, SPODOPTERA LITTORAL'S BOISD". Egyptian Journal of Agricultural Research, 76, 3, 1998, 1017-1026. doi: 10.21608/ejar.1998.358471
HAMADA, N., FARRAG, R., NASR, F. (1998). 'SYNTHESIS AND BIOLOGICAL EFFECTS OF PYRAZOLINE DERIVATIVES AGAINST THE COTTON LEAFWORM, SPODOPTERA LITTORAL'S BOISD', Egyptian Journal of Agricultural Research, 76(3), pp. 1017-1026. doi: 10.21608/ejar.1998.358471
HAMADA, N., FARRAG, R., NASR, F. SYNTHESIS AND BIOLOGICAL EFFECTS OF PYRAZOLINE DERIVATIVES AGAINST THE COTTON LEAFWORM, SPODOPTERA LITTORAL'S BOISD. Egyptian Journal of Agricultural Research, 1998; 76(3): 1017-1026. doi: 10.21608/ejar.1998.358471

SYNTHESIS AND BIOLOGICAL EFFECTS OF PYRAZOLINE DERIVATIVES AGAINST THE COTTON LEAFWORM, SPODOPTERA LITTORAL'S BOISD

Article 14, Volume 76, Issue 3, September 1998, Page 1017-1026  XML PDF (2.21 MB)
Document Type: Original Article
DOI: 10.21608/ejar.1998.358471
View on SCiNiTO View on SCiNiTO
Authors
NAGWA M. HAMADA1; RAMADAN M. FARRAG2; FEEBY N. NASR2
1Faculty of Education, University of Alexandria, Egypt
2Plant Protection Research Institute, Agricultural Research Station, Sabahia, Alexandria, Egypt
Abstract
The synthesis of six new pyrazoline derivatives was performed by reaction of the corresponding chalcones with semicarbazide hydrochlo­ride and thiosemicarbazide. The insecticidal activity of these compounds in comparison with the bacterial insecticide (bactospeine) and the py­rethroid (fenvalerate) on S.littoralis was studied. The findings indicated that the compound (1) (R-i, R2 = C6 H5, X = 0,Y = H) showed the high­est toxic effect followed by the thio analogue compound (2) in which X = S. Two days after treatment, their [C50 values were 170 and 480 ppm, which dropped to 130 and 140 ppm, respectively after 7 days. The corresponding figures ranged from 9400 to 600 ppm with bactos­peine and 16-1.2 ppm with fenvalerate after 2 and 7 days, respectively. Furthermore, the synthetic pyrazolines affect the larval development with the highest potency of the derivative (2), showing ED50 of 40 and 12 ppm on pupation and moth emergence, respectively. In case of bac­tospeine, these values were 280 and 140 ppm, while reached to 0.6 and 0.27 ppm with fenvalerate, respectively.
Statistics
Article View: 45
PDF Download: 107