Multiple choice Identify the incorrect matching of plant disease and causative microorganism. Rapeseed stem canker: Leptosphaeria maculans Citrus canker: Xanthomonas axonopodis Apple canker: Neonectria galligena Grape canker: Eutypa lata Mulberry canker: Fusarium pini Reveal answer Fill a bubble to check yourself E Correct answer Explanation Mulberry canker is caused by the fungus Gibberella baccata. Pine pitch canker is caused by the fungus Fusarium pini.