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... This study evaluated whether experience of Trialeurodes vaporariorum (Westwood) (Hemiptera: Aleyrodidae) on a poinsettia cash crop, Euphorbia pulcherrima Willd. ex Koltz (Euphorbiaceae), influences the effectiveness of an eggplant trap crop, Solanum melongena L. (Solanaceae). Two whitefly strains were tested: one was reared on poinsettia (poinsettia-strain) and a second was reared on bean [Phaseol ...
Euphorbia pulcherrima; Frankliniella occidentalis; Megalurothrips sjostedti; aggregation pheromones; beans; flowers; light microscopy; males; transmission electron microscopy; ultrastructure
Abstract:
... Sternal pores are important features for identification of male thrips, especially within the subfamily Thripinae. They vary in shape, size and distribution even between species of one genus. Their functional role is speculated to be that of sex- and/or aggregation pheromone production. Yet, sexual aggregations are not reported in Echinothrips americanus, known to have sternal pores, while we obse ...
... The first steps in host plant selection, orientation and landing, are mediated in the greenhouse whitefly, Trialeurodes vaporariorum (Westw.), largely if not exclusively by a response to color. An earlier study showed that landing is most strongly elicited by yellow light (500-600 nm), a major component of the reflection from green leaves. Green and yellow leaves of all species tested elicited man ...