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Binomial name. Oligonychus ununguis. (Jacobi, 1905) Oligonychus ununguis, the spruce spider mite, is a globally widespread pest of spruce. [1] Though not particularly important in the forest, it has been bothersome on planted spruce in the Prairie Provinces, and is considered one of the most important pests of spruce plantations in Ontario.
Spider mites on a lemon plant. Hot, dry conditions are often associated with population build-up of spider mites. Under optimal conditions (approximately 27 °C), the two-spotted spider mite can hatch in as little as 3 days, and become sexually mature in as little as 5 days. One female can lay up to 20 eggs per day and can live for 2 to 4 weeks ...
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The Fraser fir and red spruce, which are Ice Age relics, dominate the forests that grow on these summits. On the damp, cold forest floor, bryophytes like mosses and liverworts are widespread, and the threatened spruce-fir moss spider lives in bryophyte matting that form on rocks and have a very specific combination of moisture and thickness. [4]
Tetranychus urticae. C. L. Koch, 1836. Tetranychus urticae (common names include red spider mite and two-spotted spider mite) is a species of plant-feeding mite generally considered to be a pest. It is the most widely known member of the family Tetranychidae or spider mites. Its genome was fully sequenced in 2011, and was the first genome ...
Adult Banks grass mites range from green to brown in colour and are approximately 1/32 of an inch (~0.79 mm) in length. [1] On either side of the body is a row of brown/reddish-brown spots, the number and position of which can be used to distinguish O. pratensis from the related two-spotted spider mite (Tetranychus urticae).