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Rhododendron (Rhododendron)-Root weevil Sciopithes obscurus, Otiorhynchus sulcatus See: Common Pests of Nursery Crops Rhododendron (Rhododendron) Root weevil ...

Rhododendron (Rhododendron)-Bud moth Coleotechnites huntella Pest description and crop damage Pink larvae overwinter in the larger buds. They pupate in buds or twigs in the spring. Adults are gray moths, about 0.5 inch long, appearing in July. New larvae ...

Rhododendron (Rhododendron)-Lace bug Stephanitis rhododendri Pest description and crop damage Overwinters in egg stage. Eggs are laid in the midrib on the underside of leaves. Eggs hatch in late May or early June, although they have been noted as early as ...

Rhododendron (Rhododendron)-Whitefly Dialeurodes chittendeni Pest description and crop damage Small white insects with wings held roof-like over their heads. The eggs are small and white and laid on the underside of the leaf. Once the eggs hatch, the smal ...

Rose (Rosa)-Leafcutting bee Megachile spp. Pest description and crop damage Smooth, circular, or crescent-shape areas are cut from leaves. Bees use pieces of leaves to form cells for young. Management-chemical control No controls are registered. For more ...

Rose (Rosa)-Leafroller Many species Pest description and crop damage Variously colored caterpillars about 0.75 inch long when mature. Management-chemical control See: Chemical Control of Nursery Pests Rose (Rosa) Leafroller ...

Rose (Rosa)-Raspberry cane maggot Pegomya rubivora Pest description and crop damage New shoots wilt from a few inches to a foot from the tip. Damage is caused by a small white maggot that girdles the cane. This usually is not a serious pest. It is more of ...

Rose (Rosa)-Redhumped caterpillar Schizura concinna Pest description and crop damage Mature larvae are reddish or yellow and have several spines on each segment. The entire body is lined with white, dark reddish brown, and black lines. The head is red, an ...

Rose (Rosa)-Rose aphid Macrosiphum rosae See: Common Pests of Nursery Crops For more information Johnson, W.T. and H.H. Lyon (1991), Insects That Feed on Trees and Shrubs, 2nd ed., Cornell University Press (p. 308). Rose (Rosa) Rose aphid ...

Rose (Rosa)-Rose curculio Merhynchites bicolor Pest description and crop damage Bright red beetle, 0.25 inch long, with black undersurface, head, and legs, and long snout. One form is entirely black. Adults make egg punctures in buds, which may fail to op ...