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Rose (Rosa)-Western red-humped caterpillar Oedemasia salicis Pest description and damage The red-humped caterpillar is the larva of a 1 inch, gray-brown moth. The mature larvae are yellow with a red head, and the fourth segment is humped. The body has ora ...

Rose (Rosa)-Root weevil Numerous species Pest description and damage Identification is important as multiple species differ in susceptibility to pesticides and may have different life cycles. Adult weevils are dark colored, nocturnal beetles, 0.2 to 0.25 ...

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

Rose (Rosa)-Rose midge Dasineura rhodophaga Pest description and damage The rose midge is a tiny (about 0.05 inch in length) yellow-brown or reddish fly that lays its eggs in newly developing bud and shoot tips. The hatching maggots feed on the growing ti ...

Rose (Rosa)-Rose sawfly Includes Bristly roseslug (Cladius pectinicornis) Curled rose sawfly (Allantus cinctus) Roseslug (Endelomyia aethiops) Pest description and damage These pests are larvae of small (from 0.2 to 0.3 inch in length) black wasps called ...

Rose (Rosa)-Rose stem miner Marmara spp. Pest description and damage The legless larvae of this leaf- and twig-mining moth make sinuous, serpentine mines across the undersides of leaves. Where they cut through veins, the distal portion of the leaf may fad ...

Rose (Rosa)-Small carpenter bee Ceratina spp. Pest description and damage Small bees, 0.18 inch in length and metallic blue or blue-green, burrow into the pith of cut stems to create cells for their young. Cells are provisioned with pollen and nectar. Dam ...

Rose (Rosa)-Spider mite Panonychus ulmi Tetranychus spp. Pest description and damage Several species of spider mites can cause damage in deciduous, evergreen, and coniferous ornamentals. Appearance of these mites varies with the species, although all spid ...

Rose (Rosa)-Tent caterpillar Forest tent caterpillar (Malacosoma disstria) Western tent caterpillar (Malacosoma californica) Pest description and damage The western tent caterpillar attacks a wide variety of plants including alder, ash, birch, cottonwood, ...

Rose (Rosa)-Thrips Western flower thrips (Frankliniella occidentalis) and other species Pest description and damage Several species of thrips cause injury to many woody ornamentals. All are very small insects, less than 0.05 inch long. Color varies from r ...