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Leaf osmotic potential decrease: a possible cause of mortality of greenhouse whitefly eggs
Author(s) -
Castañé C.,
Savé R.
Publication year - 1993
Publication title -
entomologia experimentalis et applicata
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.765
H-Index - 83
eISSN - 1570-7458
pISSN - 0013-8703
DOI - 10.1111/j.1570-7458.1993.tb01721.x
Subject(s) - trialeurodes , greenhouse whitefly , biology , homoptera , whitefly , desiccation , greenhouse , horticulture , osmotic pressure , botany , pest analysis
Trialeurodes vaporariorum (Westwood) (Homoptera: Aleyrodidae) white eggs were detached from the leaf and exposed to a range of osmotic concentrations (between − 0.4 and − 2.2 MPa) in controlled conditions. Eggs were able to hatch in the low and medium solute concentrations. In the higher concentrations, eclosion was delayed and significant mortality due to egg desiccation was observed. These results indicate leaf osmotic potential is a plant characteristic that affects greenhouse whitefly survivorship. Therefore leaf osmotic potential should be considered when evaluating greenhouse whitefly resistance.