Insect and Disease

Spruce beetle

The spruce beetle (Dendroctonus rufipennis) is a bark beetle species native to North America. Host trees include mostly white spruce, but also Colorado Blue and Norway spruce. Known for its devastating impact on large boreal spruce forests, this beetle has recently gain attention due to infestation occurring in towns, summer villages, woodlots, shelterbelts, and windbreaks. […]

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Aphids are among the most frequently and widely encountered insects on trees, shrubs, and ornamental garden plants. These small, sap-sucking insects with very high numbers for extended period of time can cause e damage to a wide range of trees, impacting their health(dieback) growth(wilting), and overall productivity. Aphids are prey for numerous beneficial insects, such

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Fireblight is a destructive bacterial disease caused by the pathogen Erwinia amylovora. This bacterial disease widely affects plants in the Rosaceae family, including apples, pears, variety of cherries, chokecherry, Saskatoon berry, raspberries, black berries, hawthorn, cotoneaster, and mountain ash. Fireblight, caused by Erwinia amylovora, remains a significant threat to fruit production worldwide. Spread Overwintering bacteria

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Oystershell scale

Oystershell scales (Lepidosaphes ulmi) are tiny, armored insects that creatures are infesting a wide range of woody plants(trees and shrubs). Named for their resemblance to oyster shells, these scales have infested limbs and branches of wide range of deciduous (broad-leaved) trees and shrubs. Oystershell scales is serious pest to cotoneaster hedges and dogwood shrubs. Host

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larve on needles

Spruce Budworm

The spruce budworm  (Choristoneura fumiferana) is a native moth and one of the most serious and damaging spruce and fir trees defoliator in North America. It primarily attacks spruces ( white, black Colorado)  and balsam fir trees in Alberta. It is a wasteful feeder on current year needles.   White spruce is naturally established on 9

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