Arborvitae: Cypress tip moth categories: Arborvitae Arborvitae Insects Conifers Ornamentals revision date: 2023-02-07 12:00 Arborvitae cypress tip moth damagePhoto by: R.S. Byther Biology The adult cypress tip moth (cypress tip miner) is a silver-tan moth approximately 1⁄4″ in length. The larvae are green, about 1⁄8″ long, and tunnel in the one- and two-year-old shoot tips. […]
Arborvitae: Flat-headed and shothole borers categories: Arborvitae Arborvitae Insects Conifers Ornamentals revision date: 2023-02-07 12:00 Shothole borer infestation holesPhoto by: A.L. Antonelli Biology Flat-headed borer attacks are most severe on declining plants. The 1⁄2″ adults are either brown to metallic gray or black with red or orange markings, depending on species. The larvae mine under […]
Arborvitae: Juniper scale categories: Arborvitae Arborvitae Insects Conifers Ornamentals revision date: 2023-02-09 12:00 Juniper scalePhoto by: Unknown Biology Juniper scale is a small, round, white to gray scale with a yellow dot at the center. Leaves, twigs and branches may be attacked. Symptoms of scale feeding include loss of normal color and luster of foliage, […]
Arborvitae: Juniper webworm categories: Arborvitae Arborvitae Insects Conifers Ornamentals revision date: 2023-03-27 12:00 Juniper webworm damagePhoto by: A.L. Antonelli Biology The adult juniper webworm is a copper-brown moth with white bands on the edges of the front wings. The moth is about 1⁄2″ across. The webworm caterpillars initially feed by mining inside leaves. As they […]
Arborvitae: Leafminers categories: Arborvitae Arborvitae Insects Conifers Ornamentals revision date: 2023-02-07 12:00 Arborvitae cypress tip moth damagePhoto by: R.S. Byther Biology Various species of leafminers may attack arborvitae. In general, leafminer damage is very similar to that of the cypress tip moth. Damage is typically limited to tips of twigs, where leaves and twigs are […]
Arborvitae: Spider mites categories: Arborvitae Arborvitae Insects Conifers Ornamentals revision date: 2023-02-07 12:00 Arborvitae spruce spider mite damagePhoto by: C.R. Foss Biology Spider mites are tiny, eight-legged, and of various colors from yellowish or greenish to red. They may be found on the foliage and often produce a fine webbing on the branchlets or between […]
Arborvitae: Spruce bud scale categories: Arborvitae Arborvitae Insects Conifers Ornamentals revision date: 2023-02-07 12:00 Spruce bud scalePhoto by: A.L. Antonelli Biology Spruce bud scales are shiny brown insects found on the twigs. Heavily infested plants may appear yellowish or show other signs of stress. New growth may be stunted or lacking. Adults are 1⁄8″-1⁄4″ in […]