AnilinoPyrimidines (AP) are highly active fungicides against a broad range of fungi. The FRAC AP Working Group discusses the sensitivity situation and use guidelines for control of Botrytis and Venturia for the commercialized AP fungicides cyprodinil, pyrimethanil and mepanipyrim.

The use of APs for control of Black Sigatoka is included in the FRAC Banana Working Group.

All of the above-mentioned fungicides exhibit cross resistance and are grouped under the FRAC Code No. 9 in the FRAC Code List.

The mode of action includes inhibition of methionine biosynthesis and secretion of hydrolytic enzymes. APs are cross-resistant, but show no cross-resistance with other fungicide groups.

Sensitivity monitoring studies over several years have shown that there is a medium resistance risk of Botrytis and Venturia to APs.

• For appropriate monitoring methods please visit the FRAC webpage, Monitoring Methods