Blueberry IPM in Florida Oscar E. Liburd, PhD Associate Professor - PowerPoint PPT Presentation

Blueberry IPM in Florida Oscar E. Liburd, PhD Associate Professor Entomology and Nematology Department University of Florida

Chronological Order of Blueberry pests Blueberry bud mite Blueberry gall midge Flower thrips Cranberry fruitworm Spotted wing drosophila Flea beetle

Flower Thrips, Frankliniella bispinosa Ovipositional Injury •Travel along wind currents • Multiple generations per year

Size of thrips populations in relation to flower phenology Percentages of opened flowers 1 10 70 90 20 250 200 x column 1 vs y column 1 Average # of Thrips captured Col 1 vs Col 2 150 100 50 0 0 5 10 15 20 25 Days after blooming

Flower thrips (left); Chilli thrips (right) ( Scirtothrips dorsalis )

Injuries resulting from chilli thrips

Management of thrips  Monitoring for adults White sticky boards floral tapping on white paper  Conventional insecticides Delegate 3-6 oz per acre (biological Insecticide) Malathion (organophosphate) Assail (Neo-nicotinoid)  Organic insecticide Entrust

Blueberry gall midge, Dasineura oxycoccana (Johnson)

Blueberry gall midge

Management of blueberry gall midge  Monitoring for adult emergence Bucket traps  Conventional insecticides Delegate 3-6 oz per acre (Biological Insecticide) Malathion (organophosphate) **Assail (Neo-nicotinoid)  Organic insecticide Entrust, Pyganic

Blueberry bud mite, Acalitus vaccinii (Keifer) Feeds on the under-scale of buds The mite is whitish, elongate and very small (1/125 of an inch long)

Blueberry bud mite injury Fewer fruits with Pimpeling Confused with frost damage Bud scale under dis Mcro.

Management of blueberry bud mite  Removal of infected branches through pruning  Pruning old canes  Post-harvest application insecticide/miticides such as endosulfan  Summer oils

Cranberry Fruitworm, Acrobasis vaccinii Riley

Cranberry Fruitworm Larvae are light green with a dark head capsule Mature larvae are about ½ inch in length Silk webbing deformed

Management of cranberry fruitworm  Monitoring for adults Conventional Insecticide Delegate Assail Confirm 2F (tebufenozide) Organic Insecticide Entrust Bacillus thuringiensis (Bt)

Blueberry maggot

Management of blueberry maggot  Monitoring for adults Conventional Insecticide Assail Imidan Monitoring trap for BMF Organic Insecticide Entrust

Spotted Wing Drosophila  Several generations per year  Larvae develop inside fruit  Fruit becomes soft and un- marketable

Management of Spotted Wing Drosophila  Monitoring for adults Conventional Insecticide Delegate Mustang Organic Insecticide Monitoring trap for SWD Entrust

Bait Solution Spotted Wing Drosophila Yeast-Sugar Bait Solution Recipe: 2 teaspoons of bakers yeast 4 teaspoons of sugar 2 cups of water Mix and pour ≈1 ½ inches of yeast bait into cup

Flea beetles in Blueberry Blueberry leaf beetle Colaspis pseudofavosa Damage

Flea beetles in Blueberry Red-headed flea beetle Systena frontalis Damage

Management of flea beetles  Monitoring for adults Conventional Insecticide Assail Mustang Monitoring for flea beetles Organic Insecticide Entrust

Common Beneficial Insects Coleoptera - Coccinellidae; lady beetles Aphids thrips - Carabidae; ground beetles Weed seeds Lepidoptera eggs

Common Beneficial Insects Hemiptera Minute pirate bug, Orius spp. Bigeyed bug, Geocoris spp.

Common Beneficial Insects Diptera Neuroptera Hover or Flower flies Green lacewings

Acknowledgements Small Fruit and Vegetable IPM Lab Florida Blueberry Growers Association for our funding research oeliburd@ufl.edu (352) 273-3918 http://entnemdept.ufl.edu/liburd/fruitnvegipm/