During a survey in May 2019, lentil (Lens culinaris cv. Syria 229) plants cultivated in an open field in Tiaret, Algeria showed chlorotic leaf spots with an incidence of about 10%. The symptoms began as small, irregular lesions and expanded with time from the edge to the centre of the leaves. To identify the causal agent, diseased leaves were disinfected in 2% NaOCl for three minutes, rinsed thrice with sterile water, plated onto potato dextrose agar and incubated at 25±1°C for seven days. Fungal colonies were dark grey with dense growth. Conidiophores were brown, erect, simple or branched, 2.5-3.75 × 21–42.5 μm. Conidia were mostly ovoid or ellipsoidal, light to dark brown with 1 to 3 transverse septa and 0 to 2 longitudinal septa and ranged in size from 8.75-17.5 × 7.5-15 μm (n？ = ？25) (Fig. 1). Based on morphological characters, isolates were identified as Alternaria sp. (Simmons, 2007).

  Source of information:https://bsppjournals.onlinelibrary.wiley.com/doi/10.1002/ndr2.12220