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| Scientific name: | Frankliniella occidentalis (Pergande, 1895) (Thripidae: Thysanoptera) | |
| Common Name: | Western Flower Thrips | |
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| Identification: | Pronotum with 2 pairs of large setae on anterior margin. Ctenidia present
on tergite VIII and it lies anterior to spiracle. Ocellar setae not arising
within ocellar triangle. Body colour yellowish with darker tergal markings.
Two complete rows of setae on veins of wings.
Symptoms in crop may include more thrips activity than usual, more thrips on other plants, increased presence of virus in crop and unsuccessful chemical control. |
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| Known Hosts: | More than 250 plant species including many vegetable and flower crops and many weed species. Preferred hosts include capsicums, lettuce and chrysanthemums. | |
| Damage: | Flecking, silvering or deformation of flowers, growing tips, young foliage, stems and fruit. Transmission of Tomato Spotted Wilt Virus (symptoms = ringspots, stunt, distortion, reduced yield) | |
| Life Cycle: | Adults can live 30-45 days and can produce 150 - 300 eggs. Life cycle can vary between 13 and 40 days dependent on temperature. Egg and pupal stages are hidden. In most parts of NSW they can exist outside year round. | |
| Distribution: | Sydney basin, Newcastle, Bowral, Canberra, Port Macquarie, Buronga, Jervis Bay | |
| References: | Hill, M. 1994. Western Flower Thrips. IHD, Knoxfield, Victoria.
Mound, L.A. and Gillespie, P.S. 1997. Identification Guide to Thrips associated with crops in Australia. NSW Agriculture, Orange NSW. |
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| Links: | Victorian Dept of Natural Resources and Environment, National Strategy for the control of Western Flower Thrips in Australia | |
Document 8493, submitted 09 October 2000 © NSW Agriculture, 2000 Top of page | Related titles |
