אסיף מאגר המחקר החקלאי

Quantitative GC analysis of secondary alcohol pheromones: Determination of release rate of red palm weevil, Rhynchophorus ferrugineus, pheromone from lures

Year:

2002

Source of publication :

Authors :

Volume :

28

Co-Authors:

Zada, A., Institute of Plant Protection, Volcani Center, Bet-Dagan 50250, Israel
Soroker, V., Institute of Plant Protection, Volcani Center, Bet-Dagan 50250, Israel
Harel, M., Institute of Plant Protection, Volcani Center, Bet-Dagan 50250, Israel
Nakache, J., Eden Experiment Station, Bet Shean, Israel
Dunkelblum, E., Institute of Plant Protection, Volcani Center, Bet-Dagan 50250, Israel

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Abstract:

Aliphatic secondary alcohols are components of several aggregation pheromones of important beetle and weevil pests. Some of these pheromones are used frequently for the monitoring and mass trapping of the relevant insects. We encountered severe difficulties in direct GC quantitative analysis of these compounds. Therefore, we developed a simple GC analysis of secondary alcohols converting them to trifluoroacetyl derivatives and using secondary alcohol acetates as internal standards. This method was applied for the quantitative analysis of several secondary alcohols, including the aggregation pheromone components of the almond bark beetle and the red palm weevil. The release rate of the latter pheromone from commercial lures was also determined.

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