Effective Control of Spotted Wing Drosophila
- Products
- BioMagnet™
- BioMagnet™ Ruby
The Evolution of Insecticide:
BioMagnet Ruby
BioMagnet Ruby is Suterra’s cutting-edge innovation for the sustainable control of spotted wing drosophila (SWD). This attract-and-kill technology provides growers a powerful and effective new tool in the fight against SWD. Resistant to weather and farm activities, the patented pouch allows for reduced insecticide use while improving control of the pest. BioMagnet Ruby’s zero pre-harvest interval and zero re-entry interval gives growers maximum flexibility for treatment and harvest timing.
Why Growers Choose BioMagnet Ruby
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Highly effective control of spotted wing drosophila
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Four-month duration per application
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Fast and easy to deploy
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Safe for pollinators and beneficial insects
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Zero REI and PHI
Active Ingredient
Deltamethrin mg per/dispenser
Application Rate
60 per/acre
Item #
18415
Available In
FL, GA, MI, NC, NJ, NY, OR, WA
Placement Timing
Take advantage of BioMagnet Ruby’s four-month duration by placing it early. This keeps populations low and increases the effectiveness of SWD control programs.

Larval Reduction
The addition of BioMagnet Ruby into a comprehensive IPM program cuts SWD larval emergence by an average of 75%.
Average is calculated using trials conducted in California cane berries in 2023. See Trial Catalog for details.
Average larvae per 20 berries
Spotted Wing Drosophila
(Drosophila suzukii)
Strawberry, currants, and other berries (Incl. raspberry, blueberry, blackberry), stone fruits, cherry, and grapes.
Monitor mating disruption using large delta trap with CM BioLure®
Monitor overall populations in separate trap with kairomone-pheromone combo lure
Hang traps early in the season
At least 1 trap per 15-20 acres; minimum 2 traps per block
Check traps weekly, replacing lures every other month
Replace trap liner as needed to ensure stickiness
Spotted Wing Drosophila (SWD) damage reduces crop quality, increases the risk of fruit rejection, and makes fruit more vulnerable to pathogens.
Identification of Spotted Wing Drosophila
(Drosophila suzukii)


Pest Profile: Spotted Wing Drosophila
Jun 11, 2025 8:30:00 AM
Spotted wing drosophila (SWD), Drosophila suzukii, is an invasive vinegar fly species native to East Asia. Since its arrival in California in 2008,...