The following are sample images for the upcoming identification guide to Nursery and Landscape Arthropod Pests of Ontario (Cheung, D.K.B., Llewellyn, J. Marshall. S. A.). This digital interactive guide is scheduled for launched in spring 2010 and will be available free once published in the Canadian Journal of Arthropod Identification. It will feature user-friendly digital identification keys with numerous high quality, high magnification photographs. We are striving to make this guide more comprehensive and your help is needed. If you would like to contribute specimens for study and photography please see our wanted list ’09. Your help is appreciated. This project is being supported by Landscape Ontario Growers Association, University of Guelph Insect Collection and Ontario Ministry of Agriculture, Food and Rural Affairs (OMAFRA).
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| Malacosoma americanum (Eastern Tent Caterpillar) tent with larvae on Quincy. |
Rhizotrogus majalis (European Chafer) on Thuja. |
Oligonychus aceris (Maple Spider Mite) eggs on Jeffersons Red Maple. |
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| Pyrrhalta viburnicola (Viburnum Leaf Beetle) eggs on Viburnum. |
Pissodes sp. (White Pine Beetles) adults on White Pine trap logs. |
Oligonychus ununguis (Spruce Spider Mite) adult on Spruce. |
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| Lymantria dispar (Gypsy Moth) eggs on Red Oak. |
Aulacortbum solani (Foxglove aphid) on Aquilegia vulgaris. |
Otiorhynchus sulcatus larvae. |
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| Aulacortbum solani (Foxglove Aphid) winged adult. |
Aphidius ervi. |
Myzus persicae (Green Peach Aphid) on Centranthus ruber. |
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| Tetranychus urticae (Two-spotted spider mites). |
Oligonychus ununguis (Spruce Spider Mite) eggs. |
Orchestes alni (Elm Flea Weevil). |
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| Parthenolecanium fletcheri (Fletcher's Scale) on Thuja |
Unaspis euonymi (Euonymus Scale) on Euonymus. |
Chionaspis pinifoliae on Pinus. |
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| Parthenolecanium corni (Lecanium Fruit Scale) on Red Oak |
Lapidosaphes ulmi (Oyster Scale). |
Dasyneura gleditschiae (Honeylocust Podgall Midge). |
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| Messa nana (Early Birch Sawfly) on Birch. |
Yponomeuta cagnagella (Euonymus Webworm). |
Mindarus abietinus (Balsam Twig Aphid). |
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| Argyresthia sp (Cedar Leaf Miner) on Thuja. |
Psylla bux (Boxwood Psyllid). |
Monarthropalpusi flavus (Boxwood Leaf Miner). |
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| Neodiprion sertifer eggs on Scots Pine. |
Neodiprion sertifer larvae on Scots Pine |
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