Invasive Species Compendium

Detailed coverage of invasive species threatening livelihoods and the environment worldwide

Abstract

Interception of seed-borne pathogens in introduced planting material.

Abstract

Quarantine processing of 83 662 samples of introduced germplasm and trial material during 2002 resulted in the interception of economically important fungal pathogens, namely Peronospora manshurica, not known to occur in India; Puccinia helianthi, having physiological races; Colletotrichum dematium, C. gloeosporioides [Glomerella cingulata], Fusarium solani, Macrophomina phaseolina, Drechslera sorokiniana [Cochliobolus sativus], D. graminea [Pyrenophora graminea] and Phoma lingam [Leptosphaeria maculans], having wide host range; Alternaria longipes, A. padwickii, A. japonica and Xanthomonas campestris pv. campestris, the black rot of crucifers. The economic significance of the interceptions is discussed.