Research on the occurrence of fungal diseases in semi-leafless pea (Pisum sativum L.) crops was conducted in the Central Lithuania Lowland on typical cambisols. The data generated during the period of 2006–2007 suggest that roots and stem base of semi-leafless pea varieties were severely affected by rots; index of disease severity gradually increased with plant development and maturing. The most prevalent causal agents were Phoma pinodella (L. K. Jones) Morgan-Jones et K. B. Burch (syn. Phoma medicaginis var. pinodella (L. K. Jones) Boerema) and Fusarium spp., less frequent were Trichoderma spp., Botrytis spp., Mucor spp., Alternaria spp., Thielaviopsis basicola (Berk. et Broome) Ferraris and Rizoctonia spp. In 2006 plant stems and leaves were also affected by powdery mildew (Erysiphe pisi DC. var. pisi) and Ascochyta blight (Ascochyta spp.), in 2007 – by downy mildew (Peronospora viciae f. sp. pisi Boerema et Verh.) and Ascochyta blight (Mycosphaerella pinodes (Berk. et A. Bloxam) Verstergr. (anamorph Ascochyta pinodes L. K. Jones), Ascochyta pisi Lib., Phoma pinodella (L. K. Jones) Morgan-Jones et K. B. Burch). The diversity of pathogenic fungi in different semi-leafless pea varieties was similar.
Keywords: semi-leafless peas, pathogenic fungi, Lithuania.