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Home → Publications → Tree Planters' Notes → Tree Planters' Notes Volume 23, Number 3 (1972) → Chemical Control Of Phomopsis Blight Of Junipers: a search for new methods

Chemical Control Of Phomopsis Blight Of Junipers: a search for new methods

Phomopsis juniperovora Hahn causes a devastating disease of seedlings and transplants of Juniperus virginiana, J. scopulorum, several other Juniperus species, and some species in the genera Cupressus, Thuja, and Chamaecyparis (3, 7, 11) 2. If uncontrolled, this fungus can cause complete losses of seedlings in nurseries. Eastern redcedar infected in the nursery has low survival rates when outplanted (5, 8). Susceptible trees established in landscapes are rarely killed by this fungus, but infection results in unsightly plants. No effective methods for controlling this disease in nursery beds by non-chemical means are known; thus fungicides must be relied on. Early attempts at control using Bordeaux mixture or lime-sulfur were unsuccessful (2, 4, 13, 14).


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Author(s): Glenn W. Peterson

Publication: Tree Planters' Notes - Volume 23, Number 3 (1972)

Volume: 23

Number: 3