Thrips, Frankliniella occidentalis
Frankliniella occidentalis, the western flower thrips, is a key pest of glasshouses, greenhouses and polytunnels.
Thrips can be difficult for growers to detect due to their small size and tendency for hiding within the concealed parts of the plant. Symptoms of plant damage by thrips include: bud deformation, shape distortion of fruits or vegetables during growth and a range of leaf spots and scars from thrips feeding. The larvae feed throughout the plant and leave the crop susceptible to secondary fungal and bacterial infection resulting in moulding and wilting.
Despite the small size of thrips at ~1mm in length the repercussions of Thrips infestations can be huge.