Fact Sheets

Rose: Leafcutting bees

Rose: Leafcutting bees categories: Flowers Ornamentals Rose Rose Insects revision date: 2023-02-07 12:00 Leafcutting bee damagePhoto by: K. Grey Biology Leafcutting bees remove smooth circular or semi-circular notches from the edges of leaves of roses and other plants. The leaf pieces are used by the bees to create protective cells for raising their young. Leafcutting […]

Rose: Leafrollers

Rose: Leafrollers categories: Flowers Ornamentals Rose Rose Insects revision date: 2024-06-05 02:10 Rose leafroller on leafPhoto by: A.L. Antonelli Biology Several different caterpillars roll leaves on roses. Among these are the obliquebanded leafroller, which is green with a dark head, and the orange tortrix, which is tan to greenish with a tan head. Leafrollers are […]

Rose: Redhumped caterpillar

Rose: Redhumped caterpillar categories: Flowers Ornamentals Rose Rose Insects revision date: 2024-06-05 02:10 Redhumped caterpillarsPhoto by: A.L. Antonelli Biology The redhumped caterpillar is the larvae of a 1″ gray-brown moth. The mature larvae are yellow with a red head and hump, and have orange, black, and white lengthwise stripes. The body of the caterpillar also […]

Rose: Root weevils

Rose: Root weevils categories: Flowers Ornamentals Rose Rose Insects revision date: 2024-06-05 02:07 Adult root weevil damagePhoto by: E.P. Breakey Biology Several species of weevils feed on roses. Adult weevils feed on the leaves, leaving small ragged notches along the edges. They may also feed on the flowers. They are wingless gray, brownish, or black […]

Rose: Rose aphids

Rose: Rose aphids categories: Flowers Ornamentals Rose Rose Insects revision date: 2024-06-05 02:04 Aphid colonyPhoto by: R.S. Byther Biology Rose aphids are small, soft, pinkish or green insects found on the succulent new growth, including buds and stems. White cast skins can also be present. Heavy aphid feeding can reduce the quantity and quality of […]

Rose: Rose galls

Rose: Rose galls categories: Flowers Ornamentals Rose Rose Insects revision date: 2023-02-07 12:00 Mossy rose gall on stem caused by an insectPhoto by: R.S. Byther Biology Insects can cause two types of rose galls: spiny rose gall and mossy rose gall. The spiny rose gall is caused by tiny cynipid wasps. They produce small hard […]

Rose: Rose leafhopper

Rose: Rose leafhopper categories: Flowers Ornamentals Rose Rose Insects revision date: 2024-06-05 02:07 Rose leafhopper damagePhoto by: A.L. Antonelli Biology Rose leafhoppers are small, active, whitish-green insects which hop when disturbed. The nymphs (immature) are white with red eyes. Rose leafhoppers feed on the leaves, causing white or pale blotches that resemble, but are larger […]

Rose: Rose midge

Rose: Rose midge categories: Flowers Ornamentals Rose Rose Insects revision date: 2023-02-07 12:00 Photo by: A.L. Antonelli Biology The rose midge is a tiny yellow-brown or reddish fly that lays its eggs in newly developing bud and shoot tips. The hatching maggots feed on the growing tips. New buds and shoots are deformed and killed […]

Rose: Roseslug

Rose: Roseslug categories: Flowers Ornamentals Rose Rose Insects revision date: 2024-07-08 12:08 Rose slug and damagePhoto by: A.L. Antonelli Biology Rose slugs are small yellow-green larvae (about 1/4″ long) that skeletonize the upper leaf surface. Signs of feeding include dry brown blotches, where all of the leaf except the veins and the lowest layer of […]

Rose: Spider mites

Rose: Spider mites categories: Flowers Ornamentals Rose Rose Insects revision date: 2024-06-05 08:28 Spider mite damage on rosePhoto by: R.S. Byther Biology Spider mites are tiny, eight-legged, and yellowish to brown in color. They cause mild to severe stippling (little specks or dots) on leaves. Usually yellowish to bronze in color, stippling can, in severe […]

Rose: Thrips

Rose: Thrips categories: Flowers Ornamentals Rose Insects revision date: 2024-06-05 10:25 Thrips damage on basilPhoto by: A.L. Antonelli Biology Thrips are tiny yellowish to dark insects that feed in flower and leaf buds. Damaged leaves may be distorted, while infested flower buds may be distorted if they open. Heavily infested flower buds may fail to […]

Rose: Tobacco budworm

Rose: Tobacco budworm categories: Flowers Ornamentals Rose Rose Insects revision date: 2024-06-07 06:33 Tobacco budworm damage to rose budPhoto by: W. Upham, Kansas State Univ, bugwood.org Biology Tobacco budworm larvae attack several ornamental flowers including petunia, rose, geranium, and nicotiana. They feed primarily on buds, petals, and developing seed pods, but will feed on shoot […]

Rose: Western spotted cucumber beetle

Rose: Western spotted cucumber beetle categories: Flowers Ornamentals Rose Rose Insects revision date: 2024-06-05 10:40 Western spotted cucumber beetlePhoto by: K. Grey Biology The western spotted cucumber beetle is a pest of many ornamentals and vegetables. About 1/4″ long, the adult beetles have yellow wing covers with black spots. The rest of the body is […]