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The pest overwinters in the egg stage, mostly on the twigs. In the
Prairie Provinces, the eggs hatch in May. The young, which to the layperson resemble the adult mite, develop into first generation adults by early June. By mid-June, the female, only about 0.5 mm long, lays 40 to 50 eggs on the
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throughout the range often suffer damage. The pest is barely visible without the aid of a magnifier and is rarely noticed until discoloured foliage is found on an affected tree. To check for the presence of mites, sharply jar suspected foliage over a piece of white paper, and watch for movement of
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foliage. These eggs give rise to a second generation of adult mites in late June, and 3 to 6 generations follow throughout summer and early fall. The overwintering eggs are laid from
September to the onset of severe frost.
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tiny objects. If a red stain appears when the objects are smeared against the paper, the probability is high that spider mites are present.
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Tuttle, DM; Baker, EW (1976). "New records and species of
Tetranychidae and Tenuipalpidae (Acarina) from Utah and Idaho".
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and transplants. They are readily dispersed by wind and by the distribution of infected nursery stock.
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Spruce spider mites suck sap from needles and shoots, causing the foliage to become
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Pests of ornamental trees, shrubs and flowers: a colour handbook
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540:b4470b2e-82e0-43f4-ade3-5f77d5952b42
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289:. Florida: CRC Press. p. 480.
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320:Oligonychus ununguis mini pne
261:"FPL 33 – Spruce Spider Mite"
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581:Arachnids of North America
586:Animals described in 1905
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46:Scientific classification
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242:Great Basin Naturalist
40:A spruce spider mite
447:Fauna Europaea (new)
364:Oligonychus_ununguis
350:Oligonychus ununguis
189:Oligonychus ununguis
174:Oligonychus ununguis
25:Oligonychus ununguis
285:Alford, DV (2012).
259:Marshall, Vallin.
194:spruce spider mite
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548:Open Tree of Life
312:Taxon identifiers
266:. Forestry Canada
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16:Species of mite
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165:Binomial name
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499:NatureServe
473:iNaturalist
344:Wikispecies
142:Oligonychus
124:Subfamily:
570:Categories
228:References
88:Subclass:
69:Arthropoda
504:2.1067876
335:Q10608981
218:seedlings
150:Species:
81:Arachnida
52:Kingdom:
491:11168095
382:BugGuide
371:BioLib:
329:Wikidata
248:(57–64).
206:conifers
112:Family:
64:Phylum:
57:Animalia
465:2130459
214:mottled
136:Genus:
100:Order:
76:Class:
553:510083
537:NZOR:
478:263173
413:PARTUN
387:495260
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270:26 May
202:spruce
198:spruce
192:, the
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486:IRMNG
439:95739
426:99983
421:EUNIS
400:496QX
374:79521
264:(PDF)
93:Acari
525:NCBI
460:GBIF
408:EPPO
291:ISBN
272:2018
512:NBN
395:CoL
359:AFD
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Text is available under the Creative Commons Attribution-ShareAlike License. Additional terms may apply.
