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Effects of neem (Azadirachta indica) seed kernel extracts from different solvents on the carmine spider mite, Tetranychus cinnabarinus
Year:
1983
Source of publication :
Phytoparasitica
Authors :
Ascher, K. R. Simon
;
.
Mansour, Fadel
;
.
Volume :
11
Co-Authors:
Mansour, F.A., Dept. of Entomology, ARO, Newe Ya’ar Regional Experiment Station, P.O. Haifa, Bet Dagan, Israel
Ascher, K.R.S., Dept. of Toxicology, ARO, Volcani Center, Bet Dagan, Israel
Facilitators :
From page:
177
To page:
185
(
Total pages:
9
)
Abstract:
Extracts of neem (Azadirachta indica A. Juss) seed kernels prepared from various solvents affected the behavior and fecundity of the carmine spider mite, Tetranychus cinnabarinus (Boisd.). Bean leaf discs freshly sprayed with different concentrations of the extracts strongly repelled the females from the treated leaves and egg-laying was reduced. On the basis of EC 50s for both parameters, the order of effectiveness of the extracts was pentane > chloroform > n-butanol > acetone > methanol > H2 0 (inactive). The activity decreased with increasing dielectric constant of the extracting solvent. The chloroform and butanol extracts in the original solvents were phytotoxic. Bean leaf discs 7 days after spraying with the pentane and acetone extracts, still caused mortality and reduction in fecundity of adult females, but no repellency. The acetone and the pentane extracts sprayed directly on adult female mites on bean leaf discs, caused repellency and reduction of fecundity and also mortality of adults. © 1983, Springer Science + Business Media B.V.. All rights reserved.
Note:
Related Files :
acetone
dielectric constant
Fecundity
leaf disc method
mortality
N-butanol
neem
Repellency
Show More
Related Content
More details
DOI :
10.1007/BF02980689
Article number:
Affiliations:
Database:
Scopus
Publication Type:
article
;
.
Language:
English
Editors' remarks:
ID:
18529
Last updated date:
02/03/2022 17:27
Creation date:
16/04/2018 23:22
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Scientific Publication
Effects of neem (Azadirachta indica) seed kernel extracts from different solvents on the carmine spider mite, Tetranychus cinnabarinus
11
Mansour, F.A., Dept. of Entomology, ARO, Newe Ya’ar Regional Experiment Station, P.O. Haifa, Bet Dagan, Israel
Ascher, K.R.S., Dept. of Toxicology, ARO, Volcani Center, Bet Dagan, Israel
Effects of neem (Azadirachta indica) seed kernel extracts from different solvents on the carmine spider mite, Tetranychus cinnabarinus
Extracts of neem (Azadirachta indica A. Juss) seed kernels prepared from various solvents affected the behavior and fecundity of the carmine spider mite, Tetranychus cinnabarinus (Boisd.). Bean leaf discs freshly sprayed with different concentrations of the extracts strongly repelled the females from the treated leaves and egg-laying was reduced. On the basis of EC 50s for both parameters, the order of effectiveness of the extracts was pentane > chloroform > n-butanol > acetone > methanol > H2 0 (inactive). The activity decreased with increasing dielectric constant of the extracting solvent. The chloroform and butanol extracts in the original solvents were phytotoxic. Bean leaf discs 7 days after spraying with the pentane and acetone extracts, still caused mortality and reduction in fecundity of adult females, but no repellency. The acetone and the pentane extracts sprayed directly on adult female mites on bean leaf discs, caused repellency and reduction of fecundity and also mortality of adults. © 1983, Springer Science + Business Media B.V.. All rights reserved.
Scientific Publication
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