![]() Peach scab is more common in sites that had little or no fungicides in the previous year. Disease concerns for susceptible varieties are peach scab and rusty spot. Shoot flagging due to oriental fruit moth larvae is expected to show up soon, based on an estimated working biofix of May 5 to 7.īacterial spot symptoms on leaves are still relatively rare. Temperatures have been conducive for tarnished plant bug and plum curculio damage. Crop loads are still generally good in the area, with cropping problems in some sites. Peach and nectarine fruit size ranges from 20 to 25 mm, with drop continuing. Oriental fruit moth catch continues to be relatively high.Īpricot fruit range from 30 to 35 mm, with a generally better crop potential this year than in recent years. Insect activity is continuing to increase with warm weather. Tree fruitĭry conditions continue to stress young trees in sandy sites. Irrigation may be needed in the coming week for young plantings and sandy sites. Most showers will not result in any relief for the soils or plants but may be enough to splash disease spores in the vineyards and orchards. Scattered pop-up afternoon showers are predicted Tuesday through Friday with Wednesday and Thursday having the best chances. High temperatures are predicted to be in the upper 80s lows in the lower 60s. Southwest Michigan GDD summary from March 1 – May 29, 2023Ī warming trend began on Sunday and Monday, May 28 and 29. ![]() We have been drier than average for several weeks. We collected an average number of growing degree days (GDD) last week, 133 GDD base 42 and 89 GDD base 50, respectively. Large, established plantings can still pull water from deeper roots. So far, irrigation is needed mainly for young plantings and small plants. Deeper soils still have a decent amount of moisture. Most nighttime lows were in the low 40s to 50 F. Locations near Lake Michigan were 5-10 degrees cooler. Most days saw high temperatures in the upper 60s to near 80 degrees Fahrenheit. The region saw another seasonal weather last week.
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