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Nectarine

Pests Monitored with the Dormant Shoot Sample

Each name links to more information on identification and management.

Click on photos to enlarge
Healthy San Jose scale nymph.
San Jose scale nymphs (healthy)
Identification tip: The four round, dark scales in the center are the black cap stage, the most common overwintering form. The earlier white cap stage is to left.
Parasitized San Jose scale nymph.
San Jose scale (parasitized)
Identification tip: Scales parasitized the previous season will have a round hole in them where the adult parasite emerged.
European fruit lecanium nymphs.
European fruit lecanium nymphs (healthy)
Identification tip: Look for legless, immobile yellow insects on twigs. Older nymphs may have brown markings and a distinct center ridge.
European fruit lecanium nymphs.
European fruit lecanium scale (parasitized)
Identification tip: Parasitized lecanium nymphs turn black.
 Eggs of European red mite.
European red mite eggs
Identification tip: Masses of eggs may be laid together. Each slightly flattened red egg has a long, spinelike projection, called a stipe, at the top that can be seen with a hand lens.
Brown mite eggs.
Brown mite eggs
Identification tip: Brown mite eggs (shown here with adults) look like those of European red mite, but lack the stipe.

Statewide IPM Program, Agriculture and Natural Resources, University of California
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Agriculture and Natural Resources, University of California

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