Wood Acres Tree Specialists MD, DC, VA
call for tree service-1-888-464-3926
10315 Kensington Parkway, Kensington MD 20895-3358
Leaf Notes Blog
Tree & shrub care services
General Tree Work:
Plant Health Care:

Boxwood Psyllid

Nancy Gregory, University of Delaware, Bugwood.org
Psylla buxi   The boxwood psyllid is the most common insect pest of Buxus sempervirens but all boxwoods are susceptible. It causes damage by piercing and sucking sap from buds and young leaves resulting in a conspicuous cupping of the foliage. These leaves are weakened and will usually fall off after about one year. The terminal growth will be affected for about two years.
The symptoms of a psyllid infestation are cupping of the young terminal leaves as they begin growth in spring. The psyllid nymphs will be visible inside the cupped leaves although the most obvious sign is the waxy filaments and secretions they produce.

Boxwood psyllids have one generation per year. They overwinter as eggs in small orange spindle-shaped eggs that have been laid in between bud scales. Emerging as the new growth begins in April to May and feeding on the buds and young leaves, the nymphs are light green and may have dark markings. They produce and are partly covered with waxy filamentous secretions. The sucking damage causes the leaves to cup and creates a protected area for the developing nymphs. They mature into light green, 1/16 inch long adults that look like miniature cicadas in late May to early June. The adults lay eggs in the bud scales in June and July.
Pro-active tree & shrub care
Insect & Tree Pest Index Tree & Shrub Disease Index Tree & Shrub Damage Index Monthly Plant Health Care Report
Tree & Shrub Care info
Maryland Aborist Association   Tree Care Association Accreditation   ISA Certified Master Arborist ISA Certified Arborist
Maryland Arborist
Tree Care Industry
International Society
of Arboriculture
Master Arboist
On Staff
Copyright © 2010-2017 Wood Acres Tree Specialists - All Rights Reserved