Mountain Laurel Archives
Insects and diseases that can affect Mountain Laurel (Kalmia latifolia).
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Azalea Bark Scale
The adult female azalea bark scale is dark red with short legs and antennae and long, sucking mouth-parts.
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Botryosphaeria Canker
The fungus Botryosphaeria can cause a branch dieback on many woody ornamentals. Cankers girdle and kill twigs and branches of species such as horsechestnut, redbud, dogwood, beech, walnut, tulip poplar, sweetgum, crabapple, pine, oak, rhododendron, azalea, rose, willow, elm, and yew. Small black fungal fruiting structures which contain fungal spores develop in the canker.
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Japanese Mealybug
This species was intercepted 131 times at U. S. ports-of-entry between 1995 and 2012, with specimens originating from Brazil, China,…
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Mountain Laurel Leaf Spot
Leaf Spot on Mountain Laurel will have large, tan to brown spots on leaves with a dark line on their…
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Phytophthora Root Rot and Crown Dieback
Fungus-like organisms belonging to the genus Phytophthora are soil- or plant-borne and all are plant pathogens.
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Rhododendron Borer
The rhododendron borer is one of the smallest clearwing borers found in Pennsylvania.
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Southern Red Mite
The female adult is about 0.38 mm long and resembles a small spider.