Aceria macrorhyncha

Mite Aceria macrorhyncha

Description

A relatively large mite with size of approx. 0.2 - 0.3 mm. This species begins to suck in the spring, just after the leaves open, as a result of which galls are formed. They are up to 0.3-0.6 cm, elongated, pointed at the end. Often yellow-green, at the end red. They are much larger than the galls of a similar species of mite, Aceria cephalonea. Mites reproduce and live in the galls. They can have several generations within a year. They hibernate in the bark crevices of a host tree. They live on maples, especially sycamore Acer pseudoplatanus.

Symptom

Red galls on the upper side of the leaves, up to 0,6 mm tall, and with pointed tips. Intermediate forms can occur, and these can\\\\\\\'t be identified from the galls.

Tree Species: Maple

Part of a plant- attacked: Leaf / Needle

Pest significance: Less harmful

Pest Category: Mites

Invasive Species: No

Present in EU: Yes

Seasonal frequency of occurrence