The major diseases are Ascochyta spp., Botrytis cinerea, Uromycis pisi and Sclerotinia sclerotiorum. Impact® effectively controls:

Aschochyta – Aschochyta spp.

Rust – Uromyces pisi

Anthracnose – Colletotrichum pisi

Impact® is often used in mixture with chlorothalonil in order to broaden the spectrum of diseases controlled.

Rust (U. pisi) can also be a serious disease in peas. Below are listed the results of a trial with high infestation of rust.