Invasive Species

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Michigan spotted wing Drosophila update – July 31, 2018

Published on July 31, 2018
Cooler weather means more SWD activity; blueberry and other berry crops must be protected against infestation.
Michigan brown marmorated stink bug update – July 31, 2018

Published on July 31, 2018
BMSB continue to be caught in traps in southern Michigan; keep a look-out for signs of feeding damage in susceptible crops.
Michigan spotted wing Drosophila update – July 24, 2018

Published on July 24, 2018
Spotted wing Drosophila catches are continuing. Keep protecting fruit through harvest season.
Database provides a diverse toolkit for the fight against aquatic invaders

Published on July 23, 2018
Learn how to use the online List Generator to find what species have become established in your watershed.
Michigan spotted wing Drosophila update – July 17, 2018

Published on July 17, 2018
Levels of SWD in traps continue to rise in southern Michigan, are leveling off mid-state, and dipping a bit in the north.
Spotted wing Drosophila update for cherry growers – July 13, 2018

Published on July 13, 2018
SWD numbers are six times higher than in past years at this time during the season. Although trap numbers are down this week, be cautious with management decisions as rain, humidity and wet weather will likely stimulate SWD activity.
Michigan brown marmorated stink bug update – July 10, 2018

Published on July 10, 2018
Watch out for early feeding damage by brown marmorated stink bugs in developing Gala, Honeycrisp and Golden Delicious apples. Nymphs can be found in abundance on non-crop hosts in some areas.
Michigan spotted wing Drosophila update – July 10, 2018

Published on July 10, 2018
Cooler weather last week coincided with a big jump in the number of SWD caught in traps; ripening fruit must be protected against infestation.
Michigan spotted wing Drosophila update - July 3, 2018

Published on July 3, 2018
SWD are still active, though traps caught low numbers due to the heat; ripening fruit must be protected against infestation.
West central Michigan small fruit update - July 3, 2018

Published on July 3, 2018
Intense heat wave affecting the state is causing problem for small fruit growers, especially for blueberry fields ready for harvest or that started harvesting. Sunburn on ripe fruit clusters is creating problems at harvest time.