King fruit observed in Novi, Fenton and Romeo were in the 22–24 mm range, while in Almont we were still seeing fruitlets closer to 15 mm. Fruit-by-fruit conditionsĪpples: In northern parts of the region, growers are still doing some chemical thinning. See the latest weekly fruit meetings for southern Michigan on MSU’s Kaltura Media Space (these may take a few days to upload after the Monday meetings). It is a good opportunity to ask questions and receive RUP credits. I encourage our growers to attend the weekly southern Michigan grower meetings virtually on Monday evenings by registering at Monday Night Southwest Michigan Fruit IPM Meeting 2023. Many mite pests also attack fruit crops and we have a mite control article updated in 2022 discussing different options for choosing miticides.
Plum curculio has been seen, but numbers remain low. A local scout reported first flight of obliquebanded leafroller at a warmer site in Oakland County in addition to continued sustained catch of codling moth above threshold even in mating disrupt blocks, San Jose scale males on traps, woolly apple aphid colonies, black cherry aphids and peach aphids. We continue to see insect movement, with populations of various aphids and mites climbing. Based on the RimPro models at the Romeo station, for which you can see you an overview by following the link, we will see continued risk for apple powdery mildew. The continued dry weather should keep scab and fire blight risk at bay until the showers this weekend. Grapes, the last of our major crops to bloom, are starting to open their flowers. Tree fruits are starting to size up and many small fruits are setting.
The warm weather has pushed more of our crops along in their development. On the positive side, our entomology experts believe that the low moisture conditions will delay and reduce the incidence of spotted wing Drosophila. Many of you have been irrigating your crops for some time and I expect that to continue for the foreseeable future. The dry and warm conditions will continue, though we have a chance for some showers over the weekend. Michigan State University Extension has a collection of articles related to drought on its drought resources page. The dry conditions from the last week have put the southern parts of our region into “abnormally dry” conditions according to the U.S. Throughout the season these updates will include information about the weather in the past week and the upcoming week, a fruit-by-fruit guide to current conditions with appropriate pest and disease updates, and other relevant observations.
National cherry tart day update#
Welcome to the ninth in-season fruit article update for southeast Michigan for the 2023 season.
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