Invasive Species Compendium

Detailed coverage of invasive species threatening livelihoods and the environment worldwide

Abstract

First report of root rot of Tomato caused by Phytophthora syringae in Pakistan.

Abstract

From September 2015 to December 2016, initial symptoms including yellowing and wilting of tomato cv. Roma seedlings, stunted growth, tissue softening, turning to dark brown and black, root necrosis, death of fine roots and permanent wilt and seedling death on the early growth stages were observed with 37% disease incidence overall during surveys for Phytophthora spp. in the mountain resort town of Murree, approximately 30 km northwest of Islamabad, Pakistan. The causal pathogen was isolated and identified as Phytophthora syringae based on morphological, molecular and pathogenicity analyses. This is thought to be the first report of P. syringae causing root rot on tomato in Pakistan.