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Nursery Trees
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Nursery Trees
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Updated: October 23, 2024
Spiny Witchhazel Gall Aphid Images
Spiny witchhazel gall aphid photos on birch and witchhazel
Updated: October 23, 2024
Crapemyrtle Bark Scale
Crapemrytle bark scale was first confirmed in Maryland in April 2020 by the Maryland Department of Agriculture. It was later found in Frederick and Carroll Counties. Monitor crape myrtles closely for this pest to limit the spread of the scale insect.
Updated: October 23, 2024
Potato Leafhoppers on Nursery Trees
Potato leafhoppers (Empoasca fabae) are a problem in nurseries on trees such as maples, redbud, and goldenraintree.
Updated: October 23, 2024
Eastern Tent Caterpillar Images
Eastern tent caterpillar and moth photos
Updated: February 14, 2022
Boxwood Leafminer Images
Photos of stages and damage of boxwood leafminer
Updated: February 9, 2022
Plant Phenology Images 1
Images of phenological indicator plants for pest predictive calendar
Updated: February 9, 2022
Plant Phenology Images 2
Photos for flowering plants
Updated: November 9, 2021
Growing Degree Days
Growing degree days - getting them and how to use them
Updated: April 16, 2021
Sign-up for Commercial Landscape and Nursery IPM Alerts
sign-up for University of Maryland Commercial Landscape and Nursery IPM alerts
Updated: April 6, 2021
Periodical Cicadas: Brood X
Periodical cicadas emerge in different geographical areas and these emergence groups are labeled as 'Broods".
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