Yarrow

Foodplant / gall
Asterolecanium fimbriatum causes gall of stem of Achillea

Foodplant / gall
Brachycaudus helichrysi causes gall of inflorescence of Achillea

Foodplant / feeds on
larva of Cheilosia vernalis feeds on stem of Achillea
Remarks: Other: uncertain

Foodplant / gall
Craspedolepta nervosa causes gall of leaf of Achillea

Foodplant / gall
larva of Dithryca guttularis causes gall of stem (base) of Achillea

Foodplant / gall
Eriophyes kiefferi causes gall of inflorescence of Achillea

Plant / resting place / on
Haplothrips setiger may be found on live flower of Achillea

Foodplant / gall
larva of Lasioptera francoisi causes gall of leaf of Achillea

In Great Britain and/or Ireland:
Foodplant / open feeder
adult of Longitarsus succineus grazes on leaf of Achillea

Foodplant / gall
Macrosiphoniella millefolii causes gall of inflorescence of Achillea

Foodplant / gall
larva of Misopatha palearum causes gall of stem of Achillea

Foodplant / feeds on
larva of Mordellistena parvula feeds on Achillea

Plant / resting place / within
puparium of Ophiomyia curvipalpis may be found in stem of Achillea
Other: major host/prey

Foodplant / gall
larva of Oxyna flavipennis causes gall of stem (base) of Achillea

Foodplant / gall
larva of Ozirhincus millefolii causes gall of inflorescence of Achillea

Foodplant / feeds on
Pseudostyphlus pillumus feeds on Achillea

Foodplant / gall
larva of Rhopalomyia millefolii causes gall of leaf of Achillea

Foodplant / gall
larva of Rhopalomyia ptarmicae causes gall of inflorescence of Achillea

Plant / resting place / on
male of Thrips pillichi may be found on live flower of Achillea
Remarks: season: 6-9

Foodplant / miner
larva of Trypeta zoe mines leaf of Achillea
Remarks: Other: uncertain