Mixed infection of Sugarcane streak mosaic and Sugarcane yellow leaf virus infecting sugarcane crops in A.P., India.

摘要

In a survey conducted among sugarcane growing areas of Andhra Pradesh, India, some plants (from 45 cultivars) exhibited varying severity of interveinal chlorotic specks, streaks or stripes, particularly on young leaves. Some showed yellowing midrib in mature leaves with a distinctive strong yellow midrib on the lower (abaxial) surface that gradually spreads laterally, and dries up starting at the tip and progresses down towards the leaf base. The pathogens were identified as sugarcane streak mosaic virus (SCSMV) and sugarcane yellow leaf virus (SCYLV). SCYLV was reported in both symptomatic and asymptomatic leaves. This is thought to be the first report of SCYLV and SCSMV mixed infections in Andhra Pradesh..