Insects Feeding
on these Plants:
____________
Thuja spp. (Cedar, Arborvitae) [Cupressaceae]
(Observations are from Yanega, Covell, Smith, Cranshaw, ScaleNet)
Coleoptera (Beetles)
Cerambycidae: Atimia confusus confusus [larvae found under bark] Ya1996, Callidium frigidum [larvae found under bark] Ya1996, Eupogonius tomentosa Ya1996, Semanotus ligneum ligneum (Cedar Tree Borer) Ya1996
Homoptera (Sucking Insects)
Coccidae: Parthenolecanium fletcheri (Fletcher Scale) [found on twigs or needles] Crw2004; Pseudococcidae: Pseudococcus maritimus (Grape Mealybug) [found on foliage, polyphagous; this insect is widely distributed] SN2014
Hymenoptera (Bees, Wasps, & Sawflies)
Diprionidae: Monoctenus melliceps (Arborvitae Sawfly) [larvae feed on leaves] Crw2004; Siricidae: Sirex areolatus [larvae bore into wood] Sm2006, Urocerus albicornis [larvae bore into wood] Sm2006
Lepidoptera (Butterflies, Skippers, & Moths)
Geometridae: Protoboarmia porcelaria (Porcelain Gray) [polyphagous] Cv2005
Trombidiformes (Mites)
Tetranychidae: Oligonychus ununguis (Spruce Spider Mite) [found on leaves] Crw2004, Platytetranychus thujae (Arborvitae Spider Mite) [found on leaves] Crw2004