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Evaluation of a method for assay of phagostimulants with Spodoptera littoralis larvae under various conditions
Year:
1973
Authors :
Ascher, K. R. Simon
;
.
Volume :
16
Co-Authors:
Ascher, K.R.S., Department of Toxicology, The Volcani Center, Agricultural Research Organization, Bet Dagan, Israel
Meisner, J., Department of Toxicology, The Volcani Center, Agricultural Research Organization, Bet Dagan, Israel
Facilitators :
From page:
101
To page:
114
(
Total pages:
14
)
Abstract:
The 'Styropor method' consists of using lamellae of foamed polystyrene (styr.) as a carrier for phagostimulatory substances fed to phytophagous insects. The method was re-evaluated with larvae of S. littoralis as test insects and sucrose as phagostimulant. In experiments with different types of styr. and thickness of lamellae, styr. of type P16 and a thickness of 0.6 mm, respectively, was found to be the most advantageous. Larvae consumed about twice the weight of sucrose-treated styr. when offered water than when not offered it. There was a linear correlation between the initial weight of the respective larval groups and styr. consumption. No influence on the amount of feeding was exerted by prestarvation of up to 6 hours, illumination, or complete darkness. © 1973 North-Holland Publishing Company.
Note:
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More details
DOI :
10.1007/BF00333555
Article number:
Affiliations:
Database:
Scopus
Publication Type:
article
;
.
Language:
English
Editors' remarks:
ID:
29823
Last updated date:
02/03/2022 17:27
Creation date:
17/04/2018 00:49
Scientific Publication
Evaluation of a method for assay of phagostimulants with Spodoptera littoralis larvae under various conditions
16
Ascher, K.R.S., Department of Toxicology, The Volcani Center, Agricultural Research Organization, Bet Dagan, Israel
Meisner, J., Department of Toxicology, The Volcani Center, Agricultural Research Organization, Bet Dagan, Israel
Evaluation of a method for assay of phagostimulants with Spodoptera littoralis larvae under various conditions
The 'Styropor method' consists of using lamellae of foamed polystyrene (styr.) as a carrier for phagostimulatory substances fed to phytophagous insects. The method was re-evaluated with larvae of S. littoralis as test insects and sucrose as phagostimulant. In experiments with different types of styr. and thickness of lamellae, styr. of type P16 and a thickness of 0.6 mm, respectively, was found to be the most advantageous. Larvae consumed about twice the weight of sucrose-treated styr. when offered water than when not offered it. There was a linear correlation between the initial weight of the respective larval groups and styr. consumption. No influence on the amount of feeding was exerted by prestarvation of up to 6 hours, illumination, or complete darkness. © 1973 North-Holland Publishing Company.
Scientific Publication
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