Pacific Northwest Insect Management Handbook
Printed page URL: https://pnwhandbooks.org/node/194
Hosts and Pests of Landscape Plants
Mike Bush and Sharon Collman
Latest revision:
March 2024
Alder (Alnus)
Andromeda (Pieris japonica)
Apricot, flowering (Prunus)
Arborvitae (Thuja)
Ash (Fraxinus)
Aspen (Populus tremuloides)
Aucuba (Aucuba japonica)
Azalea (Rhododendron)
Bamboo (Bambusa and others)
Barberry (Berberis)
Beech (Fagus)
Bergenia (Bergenia)
Birch (Betula)
Black locust (Robinia)
Black walnut (Juglans)
Boxelder (Acer negundo)
Boxwood (Buxus)
Butterfly bush (Buddleja)
California lilac (Ceanothus)
Camellia (Camellia)
Cherry, flowering (Prunus)
Chestnut (Castanea)
Cotoneaster (Cotoneaster)
Cottonwood (Populus)
Crabapple, flowering (Malus)
Daffodil (Narcissus)
Dahlia (Dahlia)
Daphne (Daphne)
Dogwood (Cornus)
Douglas-fir (Pseudotsuga)
Elderberry (Sambucus)
Elm (Ulmus)
Euonymus (Euonymus)
Euphorbia (Euphorbia)
Fir (Abies)
Firethorn (Pyracantha)
Forsythia (Forsythia)
Fuchsia (Fuchsia)
Geranium (Pelargonium)
Gladiolus (Gladiolus)
Golden chain (Laburnum)
Hawthorn (Crataegus)
Hellebore (Helleborus)
Hemlock (Tsuga)
Holly (Ilex)
Hollyhock (Alcea rosea)
Honeylocust (Gleditsia triacanthos)
Honeysuckle (Lonicera)
Hydrangea (Hydrangea)
Iris (Iris)
Ivy (Hedera)
Japanese holly (Ilex)
Juniper (Juniperus)
Kinnikinnick (Arctostaphylos)
Laurel, Portuguese (Prunus)
Lilac (Syringa)
Lily (Lilium)
Linden (Tilia)
Locust (Robinia)
Macrohaltica (Alnus)
Madrone (Arbutus)
Maple (Acer)
Mountain ash (Sorbus)
Narcissus (Narcissus)
Oak (Quercus)
Peach, flowering (Prunus)
Pear, flowering (Pyrus)
Photinia (Photinia)
Pine (Pinus)
Plum, flowering (Prunus)
Poplar (Populus)
Privet (Ligustrum)
Quince, flowering (Cydonia)
Rhododendron (Rhododendron)
Rockrose (Cistus)
Rose (Rosa)
Sequoia/Redwood (Sequoia)
Skimmia (Skimmia)
Spiraea (Spiraea)
Spruce (Picea)
Sycamore (Platanus)
Tulip (Tulipa)
Tuliptree (Liriodendron)
Viburnum (Viburnum)
Willow (Salix)
Witch-hazel (Hamamelis)
Yew (Taxus)
Kaur, N. (Ed.). 2024 Pacific Northwest Insect Management Handbook.
© Oregon State University.
Use pesticides safely!
- Wear protective clothing and safety devices as recommended on the label. Bathe or shower after each use.
- Read the pesticide label—even if you’ve used the pesticide before. Follow closely the instructions on the label (and any other directions you have).
- Be cautious when you apply pesticides. Know your legal responsibility as a pesticide applicator. You may be liable for injury or damage resulting from pesticide use.
Trade-name products and services are mentioned as illustrations only. This does not mean that the participating Extension Services endorse these products and services or that they intend to discriminate against products and services not mentioned.