SWD Updates

[9/10/2020] UMN Extension weekly fruit updates. Read the most recent articles here.

The current Weekly Fruit Update includes an update on SWD and updated management guidelines Japanese Beetle.

[4/10/2020] A new 2-episode series on What's Killing my Kale podcast that focuses on spotted wing Drosophilla (SWD) management is available. Listen to the podcast here

[8/30/2019]  As we approach wine grape harvest in the next 2-3 weeks, growers should remain vigilant in monitoring SWD (ideally, using traps located at on-farm vineyards), and if flies are present (e.g., trap catch >10 flies/week), consider using one of 4 alternating insecticides prior to harvest (e.g., Delegate or Entrust [organic-certified], Mustang Maxx, and Malathion). Read the entire article here

[8/16/2019] Spotted-wing Drosophila (SWD) trap catches continue to remain very high in all on-farm and research locations monitored. Read the entire article here

[8/9/2019] Spotted-wing Drosophila (SWD) trap catches continue to remain very high in all on-farm and research locations monitored, especially the past 2 weeks. Read the article here.

[7/25/2019] Since July 8th and during the past week, SWD numbers for traps located in berry crops (mostly blueberry, summer raspberry) increased substantially. 

[7/18/19] Since July 8th and during the past week, SWD numbers for traps located in berry crops (mostly blueberry, summer raspberry) increased substantially – up to 191 and 176/wk at Forest Lake and the HRC-Arboretum, respectively. 

[7/3/2019] SWD activity is increasing across the state!

[5/13/2019] Local raspberry farmers lose an estimated $2.3 million in annual sales to spotted wing drosophila. Researchers funded by the Minnesota Invasive Terrestrial Plants & Pests Center (MITPPC) used local grower surveys in combination with field research and USDA census data to evaluate the economic impact of the state raspberry industry’s most significant pest.

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