Sample excerpt from 'Pest Resistant key Trees and Shrubs'
Plant: BOXWOOD (Buxus)
This small leaved evergreen is a traditional and historical favorite in landscape design, used as a foundation plant to a focal plant. Boxwoods are popular in traditional landscape design for lining a driveway, walkway, or garden. A slow growing shrub, over time boxwood may develop dieback and/or disease due to environmental stress. Boxwood is finding renewed popularity in suburban areas due to its resistance to deer browse.
The cultivar `Suffruticosa' is considered to be the "standard" for historical boxwood plantings used for edging. Some people are not fond of its fragrance.
TO: Boxwood leafminer *
Swollen, blister-like damage occurs on foliage due to the larval feeding of this fly. Adults fly and lay eggs in May. Infested leaves yellow, appear unsightly, and often drop prematurely.
Susceptible:
Buxus microphylla Littleleaf boxwood
Buxus microphylla ‘National’ Littleleaf box cv.
B. sempervirens Common boxwood
Buxus sempervirens ‘Myrtifolia’ Common box cv.
Resistant ("Least Susceptible"):
Buxus microphylla var. japonica Littleaf box var.
B. sempervirens argenteo-variega Variegated boxwood
B. sempervirens `Handsworthiensis' Common box cv.
B. sempervirens ‘Memorial’ Common box cv.
B. sempervirens pendula Weeping boxwood
B. sempervirens `Pyramidalis' Common Box cv.
B. sempervirens `Suffruticosa' English Boxwood
B. sempervirens `Vardar Valley' Common box cv.
TO: Boxwood Psyllid *
Feeding by the immature stage of this sucking insect causes terminal leaves to fold inward (cup) and yellow, distorting the plant. Adult boxwood psyllids are active in May.
Susceptible ("Preferred") :
B. sempervirens Common boxwood
Resistant ("Least Preferred"):
B. sempervirens `Suffruticosa' English Boxwood
This small leaved evergreen is a traditional and historical favorite in landscape design, used as a foundation plant to a focal plant. Boxwoods are popular in traditional landscape design for lining a driveway, walkway, or garden. A slow growing shrub, over time boxwood may develop dieback and/or disease due to environmental stress. Boxwood is finding renewed popularity in suburban areas due to its resistance to deer browse.
The cultivar `Suffruticosa' is considered to be the "standard" for historical boxwood plantings used for edging. Some people are not fond of its fragrance.
TO: Boxwood leafminer *
Swollen, blister-like damage occurs on foliage due to the larval feeding of this fly. Adults fly and lay eggs in May. Infested leaves yellow, appear unsightly, and often drop prematurely.
Susceptible:
Buxus microphylla Littleleaf boxwood
Buxus microphylla ‘National’ Littleleaf box cv.
B. sempervirens Common boxwood
Buxus sempervirens ‘Myrtifolia’ Common box cv.
Resistant ("Least Susceptible"):
Buxus microphylla var. japonica Littleaf box var.
B. sempervirens argenteo-variega Variegated boxwood
B. sempervirens `Handsworthiensis' Common box cv.
B. sempervirens ‘Memorial’ Common box cv.
B. sempervirens pendula Weeping boxwood
B. sempervirens `Pyramidalis' Common Box cv.
B. sempervirens `Suffruticosa' English Boxwood
B. sempervirens `Vardar Valley' Common box cv.
TO: Boxwood Psyllid *
Feeding by the immature stage of this sucking insect causes terminal leaves to fold inward (cup) and yellow, distorting the plant. Adult boxwood psyllids are active in May.
Susceptible ("Preferred") :
B. sempervirens Common boxwood
Resistant ("Least Preferred"):
B. sempervirens `Suffruticosa' English Boxwood
