Blueberry Insect Monitoring Report, 16 June 2017

— Written By Grant Palmer and last updated by
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The spike in SWD captures at our Pender trapping location is likely due to the fact that much of their blueberry plants have been hedged for the season, which also resulted in some of our traps being hedged, too! Similar trends will be expected at the other locations when their plants are also hedged for the season.

All moth traps were removed from all sites on June 6th because the activity period for these insects has concluded. We will continue trapping for spotted wing drosophila and blueberry maggot fly until the end of harvest.

Large animal damage on blueberry fruit

Occasionally signs of larger animals such as deer and raccoons are found in fields such as animal tracks, and berry damage. Photo: Grant Palmer

So far no blueberry maggot flies have been found at any of our trapping locations.

Six total blueberry fields are being monitored with five trapping stations at each field site and each station consisting of one spotted wing drosophila (SWD) trap baited with a yeast sugar-water mixture, one white “wing” sticky trap baited with a pheromone lure attractive to male cranberry fruitworm moths, one white “wing” trap baited with a pheromone lure attractive to male cherry fruitworm moths, and one yellow sticky trap baited with ammonium bicarbonate to attract blueberry maggot flies.

The average number of the total pests captured per site per day are presented in the figures below. YSW refers to traps baited with “yeast/sugar water.” SWD refers to “spotted wing drosophila.”

During this trapping period, 11 SWD were captured at New Hanover 1, 23 SWD were captured at Pender 1, 3 SWD were captured at Bladen 3, 2 SWD were captured at Bladen 1, 3 SWD were captured at Bladen 4, and 3 SWD were captured at Sampson 1.

SWD trap data 6/16/17

No cranberry fruitworm moths were captured during this trapping period

Cranberry fruitworm trap data 6/16/17

No cherry fruitworm moths were captured during this trapping period.

Cherry Fruitworm trap data 6/16/17

No blueberry maggot flies were captured during this trapping period.Blueberry Maggot trap data 6/16/17

More information

DIY Blueberry Maggot MonitoringNC Small Fruit & Specialty Crop IPM

DIY SWD Monitoring – NC Small Fruit & Specialty Crop IPM

Cranberry FruitwormEntomology Portal

Cherry FruitwormEntomology Portal