Blueberry IPM in Florida
Oscar E. Liburd, PhD Associate Professor
Entomology and Nematology Department University of Florida
Chronological Order of Blueberry pests
Flower thrips
Blueberry gall midge
Cranberry fruitworm
Spotted wing drosophila
Blueberry bud mite
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
Average # of Thrips captured
200
x column 1 vs y column 1 Col 1 vs Col 2
150
100
50
0
0
5
10
15
Days after blooming
20
25
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
Confused with frost damage
Fewer fruits with Pimpeling
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 unmarketable
Management of Spotted Wing Drosophila Monitoring for adults Conventional Insecticide Delegate Mustang Organic Insecticide Entrust
Monitoring trap for SWD
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
Bigeyed bug, Geocoris spp.
Minute pirate bug, Orius spp.
Common Beneficial Insects Neuroptera
Green lacewings
Diptera
Hover or Flower flies
Acknowledgements Small Fruit and Vegetable IPM Lab Florida Blueberry Growers Association for our funding research
[email protected] (352) 273-3918
http://entnemdept.ufl.edu/liburd/fruitnvegipm/
