1. Insect
  2. Small Fruit Crops
  3. Blackberry and Raspberry Pests

Blackberry and Raspberry-Spotted-wing drosophila

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Drosophila suzukii

For pest description, crop damage, biology, life history, sampling and cultural management

See:

Spotted-Wing Drosophila: An Emerging Berry and Stone Fruit Pest

Management-chemical control: HOME USE

  • bifenthrin
  • plant essential oils (clove, rosemary, thyme)-Some formulations are OMRI-listed for organic use.
  • spinosad-This product generally provides 100% control and 5-7 days residual activity. Some formulations are OMRI-listed for organic use.

Management-chemical control: COMMERCIAL USE

Laboratory tests and field experiments indicate that many of the pesticides registered for use in caneberries are effective in controlling the adult SWD. Although SWD may not be listed on a label, it is legal to use for SWD management. The products listed below target the adult stage of SWD.

  • azadirachtin (Ecozin Plus and other brands)-Consult label for rate. PHI 0 days. Achieves only about 25% control of SWD. Some formulations are OMRI-listed for organic use.
  • Beauveria bassiana (BioCeres and others). Consult label for rates. PHI 0 days. Harmful to bees.
  • bifenthrin (Brigade and other brands) at 0.1 lb ai/A. PHI 3 days. Toxic to bees and should not be used when bees are foraging. Toxic to fish and other aquatic invertebrates. Synthetic pyrethroids achieved 100% mortality of SWD and provide about 10 to 14 days residual control in the field. Restricted use pesticide.
  • carbaryl (Sevin and other brands) at 1.5 lb ai/A. PHI 7 days. Use postbloom only. Latex-based formulations such as Sevin XLR Plus are less hazardous to bees. May provide 100% control of SWD. Toxic to bees; do not apply when bees are foraging. Toxic to aquatic invertebrates.
  • cyantraniliprole (Exirel) at 0.088 to 0.133 lb ai/A. PHI 1 day. Toxic to bees.
  • cyclaniliprole (Verdepryn 100SL) at 0.054 to 0.072 lb ai/A. PHI 1 day. Do not apply more than 0.22 lb ai/A per year. Toxic to bees.
  • diazinon (several brands) at 1.0 lb ai/A. PHI 7 days. One application per season allowed; as such, consider other pests that may need to be managed with diazinon. Toxic to bees and most aquatic invertebrates, and carries the risk of mammalian toxicity. Do not apply when bees are foraging. May achieve 100% mortality of SWD and provide about 7 to 10 days residual control in the field. Restricted use pesticide.
  • esfenvalerate (Asana XL) at 0.05 lb ai/A. PHI 7 days. Toxic to fish and other aquatic invertebrates. Asana can act as a bee repellent; do not apply within 7 days of pollination. Apply as a pre-bloom or post-bloom spray only. Remove bees prior to application. For maximum safety to bees, apply in the evening after sunset. Synthetic pyrethroids achieved 100% mortality of SWD and provide about 10 to 14 days residual control in the field. Because of pollinator hazard, WSU entomologists do not recommend its use on red raspberries. Restricted use pesticide.
  • fenpropathrin (Danitol 2.4EC) at 0.2 to 0.3 lb ai/A. PHI 3 days. Do not exceed two applications per season. Toxic to bees and should not be used when bees are foraging. Toxic to fish and other aquatic invertebrates. Synthetic pyrethroids achieved 100% mortality of SWD and provide about 10 to 14 days residual control in the field. Restricted use pesticide.
  • horticultural oil (several brands)-Consult label for rate. Provides some control of SWD but has no residual activity. May cause spotting on fruit. Some formulations are OMRI-listed for organic use.
  • malathion)-Consult label for rate. PHI 1 day. Toxic to bees and most aquatic invertebrates, and carry the risk of mammalian toxicity. Do not apply when bees are foraging. May achieve 100% mortality of SWD and provide about 7 to 10 days residual control in the field. Of the organophosphates tested, malathion had the longest residual activity (10 days). For SWD control, SLNs OR-130013 for Malathion 8 Aquamul and OR-130011 for Malathion 8 Flowable, allow four applications per season.
  • pyrethrins (several brands)-Consult label for rate and use directions. Toxic to bees; do not apply when bees are foraging. Highly toxic to fish. Provides about 80% control of SWD but has no residual activity. PyGanic brand is OMRI-listed for organic use.
  • spinetoram (Delegate WG) at 0.05 to 0.09 lb ai/A. PHI 1 day. Toxic to bees for three hours following treatment. Do not apply when bees are foraging. May achieve 100% mortality of SWD and provide about 5 to 7 days residual control in the field.
  • spinosad (Success or Entrust) at 0.1 lb ai/A. PHI 1 day. Entrust is OMRI-listed for organic use. Toxic to bees for 3 hr following treatment. Do not apply when bees are foraging. May achieve 100% mortality of SWD and provide about 5 to 7 days residual control in the field. The bait formulation of spinosad (GF-120) is not effective against SWD.
  • zeta-cypermethrin (Mustang) at 0.05 lb ai/A. PHI 1 day. Toxic to bees and should not be used when bees are foraging. Toxic to fish and other aquatic invertebrates. Synthetic pyrethroids achieved 100% mortality of SWD and provide about 10 to 14 days residual control in the field. Restricted use pesticide.