Terriera

Terriera is a genus of mites belonging to the family Eriophyidae. These mites are commonly known as gall mites or rust mites. They are microscopic, plant-feeding organisms that induce the formation of galls or other deformities on their host plants.

Terriera mites are characterized by their elongate, worm-like bodies and only two pairs of legs, unlike most mites which have four. They are typically host-specific, meaning each species of Terriera mite will feed and reproduce on a limited range of plant species.

The feeding activity of Terriera mites can cause a variety of symptoms on host plants, including galls (abnormal growths), erineum (velvet-like patches on leaves), leaf curling, discoloration, and stunted growth. The specific symptoms depend on the mite species and the host plant involved. While some Terriera infestations may cause only minor aesthetic damage, others can significantly impact plant health and yield, particularly in agricultural and horticultural settings.

Control of Terriera mites can be challenging due to their small size and cryptic habits within galls or other plant structures. Management strategies often include the use of miticides, horticultural oils, or encouraging natural enemies such as predatory mites. Plant resistance is also an important factor in managing Terriera mite infestations. Proper identification of the mite species and its host plant is crucial for effective control.