Occurrence and severity of angular leaf spot of cucumber in Kashmir.
An extensive survey conducted during 2004 and 2005 revealed presence of angular leaf spot (caused by Pseudomonas syringae pv. lachrymans) in all cucumber growing areas of Kashmir valley in India with incidence and intensity ranging 23.3-74.4% and 10.5-26.0%, respectively. Symptoms initiated as minute water-soaked spots on leaves, which turned angular, light tan in colour and necrotic later on. The spots on infected fruits were small, water-soaked and circular, which later coalesced and become sunken with whitish centres and raised margins. Tissues underlying such spots turned brown leading to rot and misshapen fruits in case of severe infection.