Hazelnut pest

Asked July 4, 2020, 9:08 AM EDT

Is this something we should worry about. Found several branches with what looks like eggs. See attachment. Thank you. Gerry

Oakland County Michigan

4 Responses

The bumps on the twig are very blurry, but they resemble Lechanium scale, a sucking insect pest. Do they easily come off with a nudge from your fingernail? Are they quite wet below? Would it be possible to upload a better photo?

The bumps on the twig are very blurry, but they resemble Lechanium scale, a sucking insect pest. Do they easily come off with a nudge from your fingernail? Are they quite wet below? Would it be possible to upload a better photo?

Yes, they can be scraped with a nail. Thanks.

Looks to me to be fruit lechanium scale- a sucking insect pest. Scales are best controlled when the tiny crawlers hatch (see more info at this link) https://pnwhandbooks.org/insect/nut/hazelnut/hazelnut-scale-insect And they can be controlled with an environmentally friendly spray such as insecticidal soap.