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Spruce (Picea)-Spruce bud scale Physokermes piceae See: Common Pests of Nursery Crops Pest description and crop damage Females are semiglobular and brown and resemble buds. They produce abundant honeydew. See "Spruce" in: Christmas Tree Plantati ...

Spruce (Picea)-Spruce budworm Choristoneura occidentalis Pest description and crop damage Green to brown larvae, up to 1 inch long, attack foliage and buds of fir and spruce. See "Spruce" in: Christmas Tree Plantation Pests Management-chemical c ...

Spruce (Picea)-Spruce needleminer Endothenia albolineana Pest description and crop damage Small, light greenish brown larvae mine and web needles. Adult moth is dark brown with a wing expanse of 0.5 inch. See "Spruce" in: Christmas Tree Plantati ...

Spruce (Picea)-Spruce spider mite Oligonychus ununguis See: Common Pests of Nursery Crops Management-chemical control See: Chemical Control of Nursery Pests For more information See "Spruce" in: Christmas Tree Plantation Pests Spruce (Picea) Spr ...

Spruce (Picea)-Webworm Cephalcia abietis Pest description and crop damage Larvae hibernate in dense clusters on twigs and become active on warm winter days. Larvae mature in June. Pine, arborvitae, and true firs also are subject to attack. Damage may occu ...

Spruce (Picea)-White pine weevil Pissodes strobi See: Pine (Pinus)-White pine weevil Spruce (Picea) White pine weevil ...

Sycamore (Platanus)-Aphid See: Common Pests of Nursery Crops Sycamore (Platanus) Aphid ...

Sycamore (Platanus)-Sycamore scale Stomacoccus platani See: Common Pests of Nursery Crops Pest description and crop damage Infested leaves become disfigured with yellow spots. Scale also feed on bark, causing twig dieback. Eggs are laid in masses of cotto ...

Viburnum (Viburnum)-Bean aphid Aphis fabae See: Common Pests of Nursery Crops Pest description and crop damage Black aphids on underside of leaves on Viburnum species referred to as "Snowball." They do not attack Viburnum davidii. For more infor ...

Viburnum (Viburnum)-Viburnum leaf beetle Pyrchalta viburni Pest description and crop damage Adults are brown and about 0.25 inch long. They chew oblong shotholes on the leaves. Mature larvae are greenish yellow and are about 0.37 inch long. They skeletoni ...