Volatile oil from Guarea macrophylla ssp. tuberculata: Seasonal variation and electroantennographic detection by Hypsipyla grandella

Leaf oil of Guarea macrophylla (Meliaceae) is composed mainly of sesquiterpenes, whose degree of oxygenation is seasonally dependent. Analysis of the oil by GC-electroantennographic detection employing antennae of Hypsipyla grandella females revealed five components that could be responsible for the attraction of this insect pest to the plant.