Western Flower Thrips Frankliniella occidentalis

Transcription

1 Western Flower Thrips Frankliniella occidentalis Polyphagous, but particularly damaging on tomatoes, peppers, lettuce and other leafy vegetables, and curcubits. Ornamental crops at risk include cut flowers, especially roses and chrysanthemums. Prefers feeding on flowers but will also feed on leaves, fruits, and stems. Damaged flowers have characteristic flecking symptoms prior to browning and dying. Foliage damage has a silvery appearance. Tomatoes, grapes, blueberries and green beans may have characteristic halo spots. Distortion or corky tissue may occur on green beans and fruits of pepper, nectarines, peaches, strawberries, and blueberries. Damage is also caused by vectoring of Tomato Spotted Wilt Virus (TSWV), a devastating plant disease of several of its host plants. Distribution in Florida: Native to North America. Occurs throughout Florida but most common in northern Florida. Adult male: pale and up to approximately 1.1 mm in size Adult female: 3 color morphs ranging from pale to intermediate to dark; yellow morphs have dark gray bands on abdominal segments; size ranges up to 1.4 mm; four fringed wings present; two complete row of setae on wings; 8-segmented antennae

2 Eastern Flower Thrips Frankliniella tritici Polyphagous, including several vegetable, fruit and floriculture crops. Prefers feeding in flowers and damage symptoms are similar to the western flower thrips (WFT). Mixed populations of WFT, Florida thrips, and eastern flower thrips may occur in a given area. May reduce pollination in high density areas. Distribution in Florida: Widespread distribution through the Eastern U.S.; Common in north Florida, but rare south of Ocala. Adult Female: 1 mm in size; body yellow with gray bands or spots on abdominal segments Adult Male: Smaller; body white to pale yellow index.html James Castner, University of Florida (top) H. Alejandro Arevalo, University of Florida (bottom)

3 Tobacco Thrips Frankliniella fusca. Distribution in Florida:

4 Florida Flower Thrips Frankliniella bispinosa Damage similar to western flower thrips (WFT). Distorted, corky tissue may occur on fruits of certain varieties of grapefruit and orange. Pollination reduction may also occur at high population densities. Distribution in Florida: f_occide.htm id=219 Thrips knowledge base key:

5 Echinothrips americanus Polyphagous. Reported as a pest for several greenhouse hosts and woody ornamentals. Some preferred hosts include hibiscus, Ficus, poinsettia, impatiens, Difffenbrachia, Philodendrom, and Syngonium. Prefers feeding on the underside of host leaves, but will also feed on the top surface of host plant foliage and on flowers. Damage appears as flecking on foliage, similar to feeding damage from other thrips or mites. Distributed throughout the Southeastern U.S., and a greenhouse pest elsewhere. Larval E. americanus Adult female: 1.6 mm long; body color dark brown; reddish color in between abdominal segments Adult male: 1.3 mm long files/ insects/echinothrips_americanus.doc Adult and larval E. americanus Lance Osborne, Mid-Florida Research & Education Center, University of Florida, Apopka, FL Lacewing larva feeding on E. americanus

6 Asprothrips seminigricornis

7 Cuban Laurel Thrips Gynaikothrips ficorum Distribution in Florida/ U.S.: cuban_laurel_thrips.htm ID= Holly Glenn, University of Florida Anthocorid feeding on Ficus thrips

8 Cuban Laurel Thrips Gynaikothrips ficorum Distribution in Florida/ U.S.: cuban_laurel_thrips.htm ID= Choate, University of Florida

9 Melon or Palm Thrips Thrips palmi Distribution in Florida/ U.S.: melon_thrips.htm Type/t_palmi.htm thrips.pdf Top photo: Lyle Buss Bottom photo: T. palmi on hibiscus flower by Holly Glenn

10 Gladiolus Thrips Thrips simplex gladiolus_thrips.htm

11 Common Blossom Thrips Frankliniella schultzei Common in central and southern Florida, not found in northern Florida Visits the flowers of many crop and wild plant species

12 Chilli Thrips Scirtothrips dorsalis Scirtothrips_dorsalis/SCITDO_ds.pdf scirtothrips_dorsalis/ Scirtothrips_dorsalis_NPAG_et_Report_ pdf

13 Chilli Thrips Scirtothrips dorsalis Scirtothrips_dorsalis/SCITDO_ds.pdf Scirtothrips_dorsalis_NPAG_et_Report_ pdf

14 Legume Thrips Megalurothrips mucunae

15 Greenhouse Thrips Heliothrips haemorrhoidalis greenhouse_thrips.htm

16 Orchid Thrips Chaetanaphothrips orchidi ID= Holly Glenn

17 Redbanded Thrips Selenothrips rubrocinctus Lyle Buss

18 Pear Thrips Taeniothrips inconsequens

19 Privet Thrips Dendrothrips omatus a=2823&q=377900&pp=12&n=1

20 Onion Thrips Thrips tabaci. Adult body color varies; 4 wings with long hairs thrips.html t_tabaci.htm ID=

21 Onion Thrips Thrips tabaci. Adult body color varies; 4 wings with long hairs thrips.html t_tabaci.htm ID=