oystershell scale

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Oystershell Scale Fact Sheet
... Oystershell Scale Fact Sheet Fruit IPM Fact Sheet Oystershell Scale Scientific Name—Lepidosaphes ulmi (Linnaeus) Reference: Common Tree Fruit Pests, NCR 63, Angus Howitt, 1993 Michigan State University Oystershell scale was ... oystershell scale, though temperatures of –32 degrees F have been reported to be fatal. Predators, including birds, mites and wasps, are important in the control of this scale ...
www.canr.msu.edu

HortNews- February 2006
... made just before bud break and is targeted to control eriophyid mites, San Jose and oystershell scale. Dormant oil applications darken tree bark and buds, speeding up spring bud development. This ... feeding damage is present, small yellow spots on the leaves, and insects are present. (June) Oystershell scale- many hosts. Spray affected plants after eggs hatch and light yellow crawlers appear (late ...
hortparadise.unl.edu

Oil and Other Early Season Sprays for Apple and Pear Trees, HYG-1425-93
... eggs of the European red mite and scale insects such as San Jose scale and oystershell scale. These can be effectively controlled with oil. ... oils at this time can effectively control scale insects, such as the San Jose and oystershell scales. Dormant spray oils have an ... stage which occurs in June for San Jose scale and in late May for oystershell scale. Mites can be controlled anytime during the ...
ohioline.osu.edu

Ornamental Plants plus Version 3.0 - I
... Galls Plant Bug, Leafhopper on Honeylocust Spider Mites Euonymus Scale Imported Willow Leaf Beetle Iris Borer Pine Needle Scale European Pine Sawfly Eastern Spruce Gall Adelgid Pine Bark Adelgid Spruce Needle Miner Gypsy Moth Cankerworm Fall Webworm Eastern Tent Caterpillar Maple Petiole Borer Cottony Maple Scale Oystershell Scale ...
web1.msue.msu.edu

CELASTRUS INSECT PROBLEMS
... inspection for early detection of the infestation then spraying with dormant oil. Oystershell and San Jose scale may also infest bittersweet. The preferred method of control involves ... high pressure water spray from the garden hose. Related information. Pesticide Recommendations Euonymus Scale Oystershell Scale Aphids on Ornamentals Go To Top of File        Michigan State University Extension Home ...
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San Jose scale
... oblong shape with the nipple near one end. Similar species of scale found on fruit, such as lecanium scale, oystershell scale and scurfy scale, all have non-circular coverings distinctive to their species. The lemon ... of the host's body, but underneath the scale covering. After the parasitoid feeds on and kills the scale host, it pupates beneath the empty scale covering, chewing a hole to escape as ...
www.caf.wvu.edu

Apple Web Site
... Leaf Hopper Factsheet. Scale Insects suck sap from the shoots and weaken the tree San Jose Scale a pest of many trees species Oystershell Scale European Lecanium Scale is a soft scale Forbes Scale Aphids are a ...
www.canr.msu.edu

Questions On Cotoneaster
... leaves beneath a Shepherd's crook on a branch; two, oystershell scale; and three, Leaf Spot fungus, the brown spots on the ... try pruning out affected branches and spraying with bordeaux mixture. For scale, spray in spring before leaf-out with dormant oil. And ... Good diagnosis! Your cotoneaster hedge has one of the heaviest infestations of oystershell scale I have ever seen. It may be too advanced to ...
www.ext.nodak.edu

Acer rubrum L
... the Columbian timber beetle (Corthylus columbianus). The common scale insects included the cottony maple scale (Pulvinaria vitis), the maple leaf scale (P acericola), and the oystershell scale (Lepidosaphes ulmi). The common leaf feeding moths were ...
www.na.fs.fed.us

Fraxinus americana L
... the insect pests, the oystershell scale (Lepidosaphes ulmi) is the most serious. Severe infestations cause yellowing of the leaves, and if prolonged, may kill some trees. The cottony maple scale (Pulvinaria innumerabilis) also ...
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