The Dead David Viburnum Part II

THE LAST post discussed the possible cause of death of my poor David Viburnum. With a pretty clear diagnosis of Verticillium Wilt, it is time to figure out what to do next.

Verticillium, being a soil-borne fungus, is going to give this particular location fits for the foreseeable future so it is important to replace the shrub with something that is going to be resistant to its effects.

If you are facing the same problem, the following lists will give you some idea as what you will be able to plant.

Verticillium Wilt RESISTANT Plant Species:

Abies - Fir
Ageratum
Alcea - Hollyhock
Anemone
Aquilegia
Asimina - Pawpaw
Begonia - Begonia
Betula - Birch
Buxus - Boxwood
Calendula - Pot Marigold
Celtis - Hackberry
Cercidiphyllum - Katsuratree
Cornus florida
Crataegus - Hawthorn
Cunninghamia - China Fir
Dianthus
Fagus - Beech
Fern Species
Gleditsia - Honeylocust
Helleborus
Iberis
Ilex - Holly
Impatiens
Juglans - Walnut
Juniperus - Juniper
Larix - Larch
Liquidambar - Sweet Gum
Malus - Crabapple
Mimulus
Morus - Mulberry
Ostrya - Hophornbeam
Penstemon
Picea - Spruce
Pinus - Pine
Platanus - Planetree, Sycamore
Platycodon - Balloon Flower
Populus - Poplar
Portulaca
Primula - Primrose
Pseudotsuga - Douglas Fir
Pyracantha - Firethorn
Ranunculus
Quercus - Oak
Salix - Willow
Sorbus - Mountain Ash
Taxus - Yew
Thuja - Arborvitae
Verbena
Vinca
Viola
Zelkova
Zinnia


Verticillium Wilt SUSCEPTIBLE Plant Species:

Do not plant these in Verticillium infected areas!

Acer - Maple
Aesculus - Horsechestnut
Ailanthus - Tree of Heaven
Amelanchier - Serviceberry
Berberis - Barberry
Buxus - Boxwood
Catalpa
Cercis - Redbud
Chaenomeles - Quince
Cladrastis - Yellowwood
Cornus - Dogwood
Cotinus - Smoke Tree
Elaeagnus - Russian Olive
Fraxinus - Ash
Gymnocladus - Kentucky Coffee Tree
Hibiscus
Ligustrum - Privet
Maclura - Osage Orange
Magnolia
Nyssa - Sour Gum
Paeonia - Peony
Phellodendron - Amur Cork Tree
Populus - Poplar
Prunus - Cherry, Peach, Pear, Plum
Quercus - Oak
Rhododendron - Rhododendron or Azalea
Rhus - Sumac
Robinia - Black Locust
Rosa - Rose
Rubus - Bramble
Sassafras
Spiraea
Syringa - Lilac
Tilia - Linden
Ulmus - Elms
Viburnum
Vitis - Grape
Weigela


The previous lists were taken directly from: http://www.plantsgalore.com/care/disease/Diseases-verticillium-wilt.htm

Again, for a truly conclusive diagnosis, you should take the diseased plant, or a good portion of it, to your local extension office for testing. The Oregon State University Plant Clinic can help you in this testing. http://plant-clinic.bpp.oregonstate.edu/

For further information on Verticillium Wilt and management strategies, check out the following pages:

http://pnwhandbooks.org/plantdisease/pathogen-articles/pathogens-common-many-plants/fungi/verticillium-wilt-pacific-northwest

http://www.ct.gov/caes/lib/caes/documents/publications/fact_sheets/plant_pathology_and_ecology/verticillium_wilt_of_trees_and_shrubs_05-08-08.pdf

http://ohioline.osu.edu/hyg-fact/3000/3053.html