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Spruce (Picea) - (Forest/park trees)

List of pests-diseases-weeds for country: U.S.A. (mid N)

Information on all pests, diseases and weeds can be found in the downloadable Excel files
click on a pest/disease/weed to display a list of relevant publications

diseases:

Ascomycota - Dothideomycetes:

Setomelanomma holmii

Basidiomycota:

Ceropsora weirii
Heterobasidion irregulare

pests:

Coleoptera:

Dendroctonus rufipennis

Lepidoptera:

Choristoneura fumiferana

Other insect orders (plant/storage pests):

Pikonema alaskensis