Versatile gall on tansy

Versatile gall on tansy

Observation - Versatile gall on tansy - UK and Ireland. Description: I noticed galls growing from Tansy flower heads, then ones that looked different on the leaves, and finally another type in the angle between leaves and the main stem. Despite looking different to me, it seems they are all caused by the same species of ga

I noticed galls growing from Tansy flower heads, then ones that looked different on the leaves, and finally another type in the angle between leaves and the main stem. Despite looking different to me, it seems they are all caused by the same species of gall midge.