Avocado lace bug

Pseudacysta perseae

Yellowish or brownish necrotic areas, either above or below the leaf, are indications of the presence of avocado lace bugs underneath. Black pepper-like objects, centered in the brown patches usually are eggs covered with a black, sticky substance, sometimes moldy. Also, on the underside look for black specks of excreta, cast skins, nymphs, and adults, no longer than 2 mm. For identification, place a few infested leaves and a paper towel in a plastic bag, tie securely, and ship in a mailing tube with collection data.

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