Red clover vein mosaic virus

Family   : Betaflexiviridae
Genus    : Carlavirus
Acronym  : RCVMV

Introduction

Red clover vein mosaic virus (RCVMV) incites a stunt disease in peas in India. The disease is sporodic in nature and infected plants produce moderate to severe symptoms resulting in yield loss upto 88%.

Major Diseases

Vein Mosaic and stunting

Geographical Distribution

Central Indian states.

Particle Morphology

Filamentous particle of clear modal length of 600-700 x 12 nm.

Transmission Method

Transmitted by a vector; Acyrthosiphon pisum, Myzus persicae, Therioaphis (Pterocallidium) maculatus, Cavariella aegopodii, C. theobaldi in a non-persistent manner. Virus transmitted by mechanical inoculation; transmitted by seed.

Detection

ELISA.

Host Range and Symptomatology ShowHide

Host	Symptoms
Pea	Vein clearing, browning and rosetting of leaves, stunting of plants, reduced number of flowers and pods.