Updated: October 23, 2024
Thrips Management in Greenhouses
Of the many species of thrips commonly found in
greenhouses, flower thrips (Frankliniella tritici),
western flower thrips (Frankliniella occidentalis) and
chilli thrips (Scirtothrips dorsalis) are most
problematic. Chilli thrips is the fastest spreading
thrips and is found throughout North America, but
mainly in Florida and Texas. Adults of these three
species are about 1 - 2 mm long, slender and just
visible to the naked eye. Adult thrips are hard to
notice flying in the greenhouse, but both nymphs
and adults can often be detected in the open
blossoms of your greenhouse crops.