Knowledgebase

Pest Identification help #878980

Asked July 27, 2024, 8:24 AM EDT

One of my hydrangeas has a strange looking substance on some of the leaves (see attached pics) Is it a pest? Is it harmful to the life of my plant? What treatment, if any, is needed?

Summit County Ohio

Expert Response

This looks to be hydrangea scale also known as cottony camellia scale.  Please see this site - https://ag.umass.edu/landscape/publications-resources/insect-mite-guide/pulvinaria-floccifera-formerly-pulvinaria-camelicola-soft-scale

What you are seeing is the empty egg cases, the crawlers have hatched and moved to other leaves.  Please see the web site for information on management.

Loading ...