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Cryptococcus fagisuga

Woolly Beech Scale

Description

It is a small (0.5 mm) scale insect related to aphids. It has one generation per year. It can be spread by wind. Eggs are laid around the beginning of July and hatch into crawlers four weeks later. These crawlers move around until they find a suitable place to pierce the tree. The crawlers and adults of the scale are covered with white woolly substance and they create white ‘dots’ and coatings on trunks. Heavily invested trees show bark deformations. It is considered to be one of possible vectors of the disease caused by fungi of Neonectria ssp. It occurs basically in all beech forests, more frequently in elevation between 600-800 m. It prefers mixed forests stands.

Symptom

White coatings on the trunks, often very indistinct, only visible as small white dots.

Tree Species: Beech

Part of a plant- attacked: Tree trunk

Pest significance: Less harmful

Pest Category: Insects

Invasive Species: No

Present in EU: Yes

Last observations

There are a total of 1 observations of the species in the system

Cryptococcus fagisugaWoolly Beech Scale
Rudolf Cáfal
Number of votes: 0
Published: 9.4.2020

Cryptococcus fagisugaWoolly Beech Scale
Rudolf Cáfal
Number of votes: 0
Published: 9.4.2020