Insect Management Handbook

Cacoecimorpha pronubana

Image related to Laurel, Portuguese (Prunus)-Carnation tortrix

Includes manzanita leaf gall aphid (Tamalia coweni)

Image related to Kinnikinnick (Arctostaphylos)-Aphid

Tetranychus spp.

Image related to Juniper (Juniperus)-Spider mite

Dichomeris marginella

Image related to Juniper (Juniperus)-Juniper webworm

Walshomyia (Oligotrophus) betheli

Carulaspis juniperi

Includes Cypress tip moth (Argyresthia cupressella)

Giant conifer aphid (Cinara spp.)

Pest description and damage These are large aphids, up to 0.2 inch in length. Their color may range from gray to brownish to dark. Aphids establish large colonies on the twigs but are found feeding on leaf scales. Their feeding and honeydew production can cause sooty mold problems on foliage and nearby surfaces and reduce the ability of plants to produce sugars.

For biology, life history, monitoring and management

Image related to Juniper (Juniperus)-Aphid

Includes twospotted spider mite (Tetranychus urticae) and others

Image related to Japanese holly (Ilex)-Spider mite

Includes twospotted spider mite (Tetranychus urticae) and others