Vector: Whiteflies (Bemisia tabaci)

Viral Disease

Vector: Whiteflies (Bemisia tabaci)

Viral Disease

Vector: Whiteflies (Bemisia tabaci)

Viral Disease

Yellow mosaic virus is a viral disease affecting redgram, transmitted by whiteflies (Bemisia tabaci). The disease is sporadic but can cause significant yield losses, especially in off-season and isolated crops, due to the absence of alternative host plants for the vector.

Symptoms

• Leaf Appearance: Green and golden yellow mosaic mottling on leaves; in severe cases, affected areas may turn necrotic.
• Field Scattering: Diseased plants are scattered across fields rather than uniformly distributed.
• Yield Impact: Early infections result in reduced pod production.

Vector Dynamics
Whiteflies act as the vector, feeding on redgram when other host plants are unavailable, leading to disease transmission. Proper crop timing and vector management are essential for mitigating the disease.