Invasive Species Compendium

Detailed coverage of invasive species threatening livelihoods and the environment worldwide

Abstract

Sugarcane seed decay: prevalence of fungi and collar rot of seedlings caused by Curvularia spp. and Drechslera spp.

Abstract

When 7 seed samples (5 open pollinated and 2 different crosses) were screened the blotter method proved superior to the agar plate method. Of the 16 isolates, 8 were new records on seeds. Of the fungi isolated C. lunata var. aeria (21%), C. verruculosa (11%) and D. [Setosphaeria] rostrata (17%) caused relatively more seed decay than the others. These spp., D. [Cochliobolus] hawaiiensis and D. sacchari caused seedling collar rot. Max. seedling mortality by C. and D. spp. was 39 and 50% respectively. Fungicide seed treatment is recommended to obtain high populations of seedlings in nursery beds.