Search Insect Handbook

Rhododendron (Rhododendron)-Lecanium scale Includes Parthenolecanium corni Pest description and damage Scale insects are small (less than 0.125 inch in length) soft insects that live beneath waxy scales. These insects are often identified by the shape and ...

Rhododendron (Rhododendron)-Rhododendron whitefly Dialeurodes chittendeni Pest description and damage Whiteflies are small (0.04 to 0.08 inch in length) white insects that hold their wings roof-like over their abdomens rather than flat like true flies. In ...

Rhododendron (Rhododendron)-Root weevil Numerous species Pest description and damage Identification is important as root weevil species differ in susceptibility to pesticides. Adult weevils are dark colored, nocturnal beetles from 0.2 to 0.25 inch in leng ...

Rose (Rosa)-Aphid Macrosiphum rosae Description, biology and damage Rose aphids are small (roughly 0.16 inch in length), soft, pinkish or green insects found on the succulent new growth, including buds and stems. White cast skins also may be present even ...

Rose (Rosa)-Fall webworm Hyphantria cunea Pest description and damage These gregarious caterpillars spin web-like tents in branch tips of deciduous trees including apple, cherry, peach, pecan, English walnut, black walnut, ash, boxelder, birch, chokecherr ...

Rose (Rosa)-Gall wasp Mossy rose gall wasp (Diplolepis rosae) Spiny rose gall wasp (Diplolepis bicolor) Pest description and damage The mossy rose gall wasp and spiny rose gall wasp are both tiny (0.12 to 0.24 inch in length) wasps which induce galls that ...

Rose (Rosa)-Leafcutting bee Megachile spp. Description, biology and damage Leafcutting bees are about 0.4 inch in length, black with white stripes and look like small bumblebees. Female leafcutting bees remove smooth oval, circular or semicircular notches ...

Rose (Rosa)-Rose leafhopper Includes Edwardsiana rosae Pest description and damage Rose leafhoppers are small (range from 0.14 to 0.16 inch in length), active, whitish-green insects which run forward, backward, or sideways when disturbed. The nymphs (imma ...

Rose (Rosa)-Leafroller Includes European (filbert) leafroller (Archips rosana) Fruittree leafroller (Archips argyrospila) Oblique-banded leafroller (Choristoneura rosaceana) Pandemis leafroller (Pandemis pyrusana) Pest description and damage These leafrol ...

Rose (Rosa)-Raspberry cane maggot Pegomya rubivora Pest description and damage The mature cane maggot is about 0.3 inch in length and is the larva of a small (less than 0.2 inch) gray fly that feeds on the cambial tissues of host plants. The larvae are wh ...