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MU Plant Diagnostic Clinic 2026 Semi-Annual Report for Horticultural Crops (8/05/26)
Read Time 3 MIN
It was a challenging spring for many evergreen ornamental trees across the state. The total sample submissions for species such as arborvitae, white pine, spruce, and cedar doubled compared to previous years...learn more
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For the Love of Grapes (8/04/26)
David Trinklein | Read Time 7 MINLong before they became a feature of haute cuisine or the essence of a respectable vintage, grapes were busy proving that good things come in bite-sized, sweet packages...learn more
August Gardening Tips (7/20/26)
Donna Aufdenberg | Read Time 1 MINIt's a scorcher out there! Find these tips and tasks to keep you busy in and around the garden in the month of August...learn more
Adding Landscape Plants in Summer (7/07/26)
David Trinklein | Read Time 6 MINAn ancient Chinese proverb maintains that "the best time to plant a tree was 20 years ago; the second-best time is today." Just because July has arrived, there is no need to stop planting trees and shrubs...learn more
When Evergreens Turn Brown: Drought, Winter Injury, and Needle Blights on Landscape Conifers (6/30/26)
Peng Tian | Read Time 6 MINOver the past few months, we have seen a dramatic influx of evergreen inquiries regarding branch browning, tip dieback, and full-canopy decline. While it is tempting to blame a single aggressive fungal disease, we are witnessing a classic disease pyramid where severe environmental and cultural stress directly paves the way for opportunistic pathogens, causing disease pressures on certain susceptible trees...learn more
Spring Infections, Summer Stress: Foliar Diseases of Deciduous Shade Trees (6/25/26)
Peng Tian | Read Time 3 MINWith a cool, wet spring behind us, we have observed a heavy presence of foliar disease problems across Missouri's deciduous shade trees. While infections occur during a damp spring when leaves are first emerging, the fallout continues to persist into the summer months...learn more
Protecting Missouri's Oaks: Free Disease Testing Continues for 2026 (6/22/26)
Peng Tian | Read Time 2 MINThe MU Plant Diagnostic Clinic continues its partnership with the Missouri Department of Conservation to offer FREE testing services for all common oak tree diseases in 2026...learn more
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REVISED: March 14, 2022