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‘Dog-day’ Cicada

‘Dog-day’ Cicada (Neotibicen canicularis) GDD Window (base 50): 1500 (approx.) adult emergece Overview:​​​ Often overlooked because periodical cicadas are more publicized ​ Emerge early July and die by mid-September  ​ Can be … Read More

Azalea Whitefly

Azalea Whitefly (Pealius azaleae) GDD Window (base 50): 448-700 (1st gen), 1250-1500 (2nd gen), 2032-2150 (3rd gen) Overview:​​​ Tiny, 1/16” long, powdery white insects that look like very small moths ​ … Read More

Juniper Webworm

Juniper Webworm (Dichomeris marginella) GDD Window (base 50): 1645-1917 Overview:​​​ Spins silk to fasten together the needles and twigs of juniper ​ Overwinter as partially grown black-headed, brown striped worms inside … Read More

Mimosa Webworm

Mimosa Webworm (Homadaula anisocentra) GDD Window (base 50): 880-1200 (1st gen egg hatch), 1800-2100 (2nd gen egg hatch) Overview:​​​ Overwinters as pupae in cocoons, and within bark flaps and cracks … Read More

Plant Leaf Galls (Eriophyid mites)

Plant Leaf Galls (Eriophyid mites) Overview:​​​ Abnormal growths triggered by various factors​ Appear as bumps, bladder, & spindle galls, or Erineums (dense cluster of plant hairs) as a plant’s reaction to the presence or activity of foreign substances ​ Appear … Read More

Azalea Leafminer

Azalea Leafminer (Caloptilia azaleella) GDD Window (base 50): 450-800 (1st gen)/1260-1500 (2nd gen) Overview:​​​ Symptoms are often subtle and overlooked​ Early instar stages are leafminers, while the later instar stages are leafrollers   ​ … Read More

Dogwood Sawfly

Dogwood Sawfly (Macremphytus tarsatus) GDD Window (base 50): 1151-1500 Overview:​​​ Adults are slender, shiny, black, wasp insects & emerge May to July  ​ Females insert up to 100 eggs into a leaf using an … Read More

Nantucket Pine Tip Moth

Nantucket Pine Tip Moth (Rhyacionia frustrana) GDD Window (base 50): 121-448 (1st gen larvae)/1514-1917 (2nd gen larvae) Overview:​​​ Caterpillar pest that overwinters as brown-colored pupae within branch tips ​ On small … Read More

Two-Banded Japanese Weevil

Two-Banded Japanese Weevil (Pseudocneorhinus bifasciatus) GDD Window (base 50): 1644-2271 (adults) Overview:​​​ Adults are 3/16” long, round, and brown to gray with two dark bands across the wing covers ​ … Read More

Tulip Tree Aphid

Tulip Tree Aphid (Illinoia liriodendri) GDD Window (base 50): 1151-1514, 1917-2033  Overview:​​​ Wingless aphids are 1/8” long, spindle-shaped, and pale greenish-yellow or pinkish-red, with black antennae that are longer than … Read More