University of Maryland Extension

garden pest

Japanese Maple Scale Woody Ornamental Host Plants

Japanese maple scale (JMS), (Lopholeucaspis japonica Cockerell) (Hemiptera: Diaspididae), is a prolific pest of major concern to nursery crop producers and landscape managers in MD and the eastern United States. JMS is difficult to monitor and manage due to its small size, extended crawler...

Allium (Onion) Leafminer

The allium leafminer Phytomyza gymnostoma (also known as the onion leafminer) has recently been detected and confirmed from infested leeks in Lancaster County, PA. This is the first confirmed infestation in the Western Hemisphere. Host Plants and Damage Symptoms The allium leafminer has been...

Japanese Maple Scale: A Pest of Nursery and Landscape Trees and Shrubs (FS-967)

Unless Japanese Maple Scale (JMS) is monitored carefully and controlled early, populations of this armored scale can spread throughout a nursery or landscape to many species of woody plants and build up to levels that cause dieback and even death of infested plants.

Japanese Maple Scale - Woody Ornamental Host Plants

Japanese maple scale (JMS), (Lopholeucaspis japonica Cockerell) (Hemiptera: Diaspididae), is a prolific pest of major concern to nursery crop producers and landscape managers in MD and the eastern United States. JMS is difficult to monitor and manage due to its small size, extended crawler...

Garlic Problems....Again

Garlic problems
May 9, 2013 Last year at about this same time, there were calls from growers about their garlic plantings turning yellow and wilting (fig. 1). When dug up, the bulbs were often times blackened and rotting with some or much of the basal plate or roots missing (fig. 2). The calls are coming in again...
Maintained by the IET Department of the College of Agriculture and Natural Resources. © 2020. Web Accessibility

University programs, activities, and facilities are available to all without regard to race, color, sex, gender identity or expression, sexual orientation, marital status, age, national origin, political affiliation, physical or mental disability, religion, protected veteran status, genetic information, personal appearance, or any other legally protected class. If you need a reasonable accommodation to participate in any event or activity, please contact your localĀ University of Maryland Extension Office.