Hippeastrum Streak, a Virus Disease of Hippeastrnm Vittatum in Papua and New Guinea.

Abstract

The streak condition of Hippeastrum plants in the Territory of Papua and New Guinea is due to a virus which appears to be restricted to this host. Although the leaf symptoms are similar to those induced by tomato spotted wilt virus, the virus is not tomato spotted wilt due to dissimilarity in the host range and physical properties. The virus is readily transmitted by mechanical means to Hippeastrum but no insect vector was located. Attempts to produce virus-free Hippeastrum bulbs by heat treatment were unsuccessful.