| Chilli Thrips,
Scirtothrips dorsalis Hood
If you want to view a larger version of any photo contained in this website, please click on the photo. Updated: July 26, 2007 |
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NEWS National Pest Alert published - LINKFlorida Thrips Ornamental Landscape WorkshopTuesday, August 7, 2007University of Florida/IFAS ExtensionMid-Florida Research and Education Center, Apopka, FLLINK for more information. |
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A Spanish translation of this page can be found at: We did not translate this page and can't attest to its accuracy. |
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Chilli Thrips,
Scirtothrips dorsalis Hood
An adult feeding on a yellow rose blossom.
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First instar larva
Second instar larva
This photo is an adult flower thrips. Note the heavy setae on the tip of this flower thrips abdomen. These don't occur on the abdomen of a Chilli thrips.
This photo demonstrates the relative size of a Chilli thrips adult (left) compared to a flower thrips adult (right).
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This series of photos shows the use of a paint palette used to sample for thrips. The foliage of the plant being sampled is "slapped" against white colored palette. The palette is then inverted to allow the trash to fall off making it easier to observe and collect the insects. Thrips are then collect using a small paint brush and then placed in a tube containing (~70%) alcohol. |
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Orchid Thrips,
Chaetanaphothrips orchidii (Moutlon)
This species of thrips looks very much like Chilli thrips. However, there is a "break" in the dark coloring of the wings. This gives the Orchid thrips the appearance of having 2 dark spots on the front portion of the abdomen. |
| DAMAGE PHOTOS |
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The following photos demonstrate damage that is being attributed to the Chilli Thrips, Scirtothrips dorsalis Hood. This pest was found attacking roses in Palm Beach County. Serious problems with thrips have also been noted in the Orlando area. We know that the redbanded thrips, Selenothrips rubrocinctus (Giard), is also causing significant damage to Knock Out roses in the area (see Red Banded Thrips Link) but the adult redbanded thrips is black in color whereas the Chilli Thrips is much smaller and very light brown or straw colored. This new pest has been found in 16 counties from Gainesville (Alachua County) to Key West (Monroe County). It has been found in 62 retail nurseries and 1 wholesale nursery. Of the positive detections, 54 were from Rosa sp. (rose), 10 from Capsicum sp. (pepper) and 1 from Illicium sp. (anise). See the Regulatory Update file below. The presence of this pest was brought to our attention by William Schall, University of Florida, IFAS Extension from the Palm Beach County Office. The Department of Plant Industry (DPI, FDACS) is the responsible agency for identifying the specimens and sending us the alert. Click on the icon below to view the DPI pest alert.
If you suspect that you might have this pest attacking you plants please call 1-888-397-1517 |
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| An infested rose bud and heavily damaged foliage found in the Winter Park, Florida municipal rose garden. |
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| Infested rose plants in the same Winter Park rose garden. |
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| The first and second photos show symptoms of thrips damage to new growth on roses. The last photo demonstrates what the new foliage should look like. |
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| Comparison photos of damaged and healthy foliage. |
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| Photos of damaged rose foliage. |
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Ficus elastica |
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Schefllera arboricola |
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Grape |
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Wandering Jew |
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Marigold |
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Solenostemon sp. (Coleus) |
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Duranta erecta (golden
dewdrop, pigeonberry, skyflower )
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Begonia in a landscape. |
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Hedera helix (English ivy) in a greenhouse. |
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Cotton in a greenhouse. |
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Cucumber |
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Brazil Pusley or tropical Mexican clover (Richardia brasiliensis Gomes) found in a greenhouse. |
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Viburnum odoratissimum (Sweet Viburnum) in a landscape. |
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Additional Photos of Damage are available by clicking on the following links!
There is some duplication of photos on this page.
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HOSTS:
Scirtothrips dorsalis is a polyphagous species
with more than 100 recorded hosts from about 40
different families including the following: Acacia arabica,
Acacia spp. (acacia);
Acer sp. (maple); Amaranthus blitum
(purple amaranth); Ampelopsis brevipedunculata
(porcelain berry); Anacardium occidentale
(cashew); Arachis hypogaea (peanut); Asparagus officinalis (asparagus);
Calotropis gigantea (bowstring hemp); Camellia japonica (Japanese camellia);
Camellia sasanqua (sasanqua camellia);Camellia
sinensis (tea); Capsicum frutescens
(Tabasco pepper); Castanea crenata
(Japanese chestnut); Cayratia japonica (bushkiller);
Chrysanthemum x morifolium (chrysanthemum);
Citrus aurantifolia, C. maxima,
C. unshiu, Citrus spp. (citrus);
Dahlia sp. (dahlia); Diospyros kaki
(Japanese persimmon); Distylium racemosum (isu
tree); Syzygium malaccense (Malay apple);
Euonymus japonicus (euonymus); Eurya
japonica (eurya); Cuphea hyssopifolia
(Mexican heather); Ficus carica (edible
fig); Fragaria x ananassa (strawberry); Ginkgo biloba (ginkgo);
Glycine max
(soybean); Gossypium herbaceum (Levant
cotton); Hevea sp. (rubber); Ilex
crenata (Japanese holly); Ilex integra
(Mochi tree); Jasminum multiflorum (star
jasmine); Lamium barbatum (dead nettle);
Laurus nobilis (bayleaf); Lycopersicon
esculentum (tomato); Mangifera indica
(mango); Melanoxylum sp. (brauna); Mimosa pudica (sensitive plant);
Musa
sp. (banana); Nelumbo sp. (lotus); Osmanthus heterophyllus (holly olive);
Phaseolus vulgaris (bean); Photinia glabra
(Japanese photinia); Pieris japonica
(Japanese pieris); Pittosporum tobira (pittosporum);
Podocarpus macrophyllus (podocarpus); Fagopyrum esculentum (buckwheat);
Prunus
mume (Japanese apricot); Prunus salicina
(Japanese plum); Prunus sp. (cherry); Pyracantha angustifolia (firethorn);
Pyrus
sp. (pear); Quercus glauca (Japanese blue
oak); Rhododendron sp. (rhododendron); Ricinus communis (castor bean);
Rosa
sp. (rose); Saraca indica (ashoka); Sauropus androgynus (sweetleaf bush);
Solanum melongena (eggplant); Sonchus asper
(sowthistle); Tamarindus indica (tamarind);
Theobroma cacao (cocoa); Viburnum
odoratissimum var. awabuki (awabuki viburnum);
Vigna radiata (mung bean); Vitis
vinifera (grape); Zanthoxylum piperitum
(Japanese pepper).
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| This list of hosts was obtained from the Department of Plant Industry Chilli Thrips Pest Alert - see the link at the top of the page. |
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CONFIRMED NEW HOSTS IN FLORIDA |
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Antirrhinum majus L. |
Liberty Classic White Snapdragon |
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Celosia argentea L. |
Celosia – red fox |
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Coreopsis sp. |
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Cuphea sp. |
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Duranta erecta |
golden dewdrop, pigeonberry, skyflower |
| Euphorbia pulcherrima Willd. | Poinsettia |
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Eustoma grandiflorum (Raf.)Shinn. |
Florida Blue Lisianthus |
| Ficus elastica 'Burgundy' Roxb. ex Hornem. | Burgundy Rubber Tree |
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Gaura lindheimeri Engelm. & Gray |
Lindheimer's beeblossom |
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Gerbera jamesonii H. Bolus ex Hook. f. |
Gerber daisy |
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Glandularia x hybrida (Grönland & Rümpler) Neson & Pruski |
Verbena |
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Impatiens walleriana Hook. f. |
Super Elfin White |
| Lagerstroemia indica L. | Crape myrtle |
| Ligustrum sp. | Ligustrum |
| Ocimum basilicum L. | Sweet Basil |
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Pelargonium x hortorum Bailey |
Geranium |
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Pentas lanceolata (Forssk.) Deflers |
Graffiti White |
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Petunia x hybrida |
Petunia Easy Wave Red |
| Pittosporum tobira | Variegated Pittosporum |
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Plectranthus scutellarioides (L.) R. Br. |
Coleus |
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Ricinus communis |
Castor Bean |
| Rhaphiolepis umbellata | Yeddo Hawthorn |
| Richardia brasiliensis Gomes | Brazil Pusley |
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Rhododendron sp. |
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Salivia farinacea |
Victoria blue |
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Viburnum suspensum |
Viburnum |
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Viola x wittrockiana Gams |
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Zinnia elegans |
Zinnia Profusion White |
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National Pest Alert - LINK Florida Cooperative Agricultural Pest Survey Program Report No. 2006-08-SDS-01: “Assessment of Chili Thrips, Scirtothrips dorsalis Hood, in Florida” A.J. Silagyi and W.N. Dixon. PDF
Scirtothrips dorsalis NPAG Report
PDF In Service Training:
PowerPoint,
PDF Chilli Thrips Training Session
December 13, 2005:
(PDF Files
download quicker)
Chilli Thrips Program
PDF
History
Power Point,
PDF
Sampling
Power Point,
PDF
Regulatory
Update
Power Point,
PDF
Research
Summary
Power Point,
PDF
Management
Power Point,
PDF Mini Risk Assessment Chili thrips/yellow tea thrips, Scirtothrips dorsalis Hood LINK Central Florida Rose Society Article on "New Thips Problems" LINK Comparative effectiveness of chemical insecticides against the chilli thrips, Scirtothrips dorsalis Hood (Thysanoptera: Thripidae), on pepper and their compatibility with natural enemies. LINK Evaluation of Possible Pathways of Introduction for Scirtothrips dorsalis Hood (Thysanoptera: Thripidae) from the Caribbean into the Continental United States LINK Scirtothrips dorsalis Identification Aid (courtesy of Tom Skarlinsky (PPQ Identifier, Miami Plant Inspection Station) LINK SPRO Letter - Detection of the Chilli thrips (Scirtothrips dorsalis Hood) in Florida. LINK November Chilli thrips meeting notes. LINK |
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Centre for Applied Entomology and Parasitology- Thrips centre LINK The International Society for Pest Information (ISPI): Literature on thrips pest species LINK Redbanded Thrips Link LINK University of Florida Tropical Agriculture LINK Florida Department of Plant Industry Pest Alerts LINK Southern Plant Diagnostic Network (SPDN) - Chilli Thrips LINK |