Pests

Cottony Camellia Scale (Pulvinaria floccifera) GDD Window (base 50): 802-1388  Overview:​​​ Soft scales with a cottony mass of eggs found on branches and leaves of host plants​ Mature females are … Read More

Calico Scale (Eulecanium cerasorum) GDD Window (base 50): 750-1200 (all eggs hatched by 1500 GDD) Overview:​​​ Rounded, dome-shaped insects with a mottled brown and white pattern, up to ¼” in … Read More

 Indian Wax Scale (Ceroplastes ceriferus) GDD Window (base 50): 700-1200 Overview:​​​ Soft-bodied insects covered in white, waxy secretions, and found on branches and stems​ Adult females are rounded, hemispherical, white, … Read More

Two Spotted Spider Mite (Tetranychus urticae) GDD Window (base 50): 363-618 (emerging overwintering females) Overview:​​​ Microscopic (1/50”) arachnids with oval bodies, typically yellow-orange in color, with two dark spot on each … Read More

Spotted Lanternfly (Lycorma delicatula) GDD Window (base 50): Adult emergence at 1100-1700 Overview:​​​ Overwinter as egg masses on smooth surfaces, looking like a patch of mud​ In mid-May, juveniles hatch … Read More

Oriental Beetle (Anomala orientalis) GDD Window (base 50): 450-1500 Overview:​​​ Small, oval beetles with a tan to dark brown shell, often with darker mottling​ Adults are about 8-11 mm long … Read More

European Pine Sawfly (Neodiprion sertifer) GDD Window (base 50): 35-145 – hatched larvae, 100-195 – 1st larvae active  Overview: Also known as Redheaded pine sawfly​ Mature larvae are grayish-green, 18-25 mm … Read More

Pine Bark Adelgid (Pineus strobi) GDD Window (base 50): 25-100  Overview: 1/16″ long, soft-bodied, aphid-like insects. Adult females are bluish-green, covered with cottony, waxy strands. ​ Overwinter as partially grown females, maturing into … Read More

Eastern Spruce Gall Adelgid (Adelges abietis) GDD Window (base 50): 25-100  Overview: 1/16″ long, soft-bodied, aphid-like insects. Adult females are bluish-green, covered with cottony, waxy strands. ​ Overwinter as partially grown females, maturing … Read More

Cooley Spruce Gall Adelgid (Adelges cooleyi) GDD Window (base 50): 25-120 – spring control of overwintering females, 90-180 – 1st adults active (Douglas-fir), 210-310 – 1st galls visible (spruce)  Overview: … Read More