News
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Black dots on maple: Tar spot
Published on August 6, 2014
Tar spot detected on maples is a cosmetic problem and a yearly occurrence in Michigan. -
Time to scout for chestnut blight on European and Japanese hybrid cultivars
Published on August 1, 2014
‘Colossal,’ ‘Nevada,’ ‘Precoce Migoule’ and other cultivars are susceptible and should be checked for chestnut blight cankers in July. -
Armyworm infestations reported on Upper Peninsula farms
Published on August 1, 2014
Scouting corn and small grain fields is essential in managing armyworm outbreaks -
Michigan brown marmorated stink bug report for August 1, 2014
Published on August 1, 2014
We are back to no brown marmorated stink bug detections this week as the statewide monitoring program continues in fruit and vegetable production areas across Michigan. -
Michigan chestnut update – July 31, 2014
Published on August 1, 2014
European red mite populations are building in area orchards and potato leafhopper damage is becoming more apparent. Growers should be scouting for these pests regularly and monitoring pressure. -
Michigan hop update – July 31, 2014
Published on August 1, 2014
Two-spotted spider mite populations are high and growers should carefully monitor for this pest that can affect cone quality and act as a contaminate pest at harvest. Potato leafhopper and downy mildew continue to be observed. -
Michigan spotted wing Drosophila report for July 29, 2014
Published on July 29, 2014
Spotted wing Drosophila numbers remain steady in southwest Michigan, still low in other areas; protect susceptible crops where they are detected. -
Vineyard IPM scouting report for July 28, 2014
Published on July 29, 2014
Cool and wet conditions are advancing disease development, and heavy second generation grape berry moth pressure is expected to be prolonged. Scout vineyards now to see if treatment is needed. -
What to do when you start seeing disease in the vineyard: Post-infection treatments
Published on July 29, 2014
When fungal diseases show up in vineyards, it is not too late for action. There are various things to consider when making post-infection fungicide applications, including weather conditions and product efficacy. -
Be careful where you spray that stuff!
Published on July 28, 2014
Using certain herbicides too generously can kill mature, healthy trees.