Pea enation mosaic virus (PEMV)
FIGURE 1 – Twisted and malformed leaves
FIGURE 2 – Leaf mottling
FIGURE 3 – Leaf mottling
AUTHORS:Lyndon Porter, Bright Agindotan and Kevin McPhee
SYMPTOMS
• Small, circular to elongated translucent spots or streaks on leaves
• Vein clearing
• Stunted growth and malformed pods
FACTORS FAVORING DEVELOPMENT
• Presence of aphid vectors, including pea, cowpea, green peach, potato or foxglove
• Movement of aphids from virus-infected overwintering hosts in the spring or alfalfa fields during cuttings
IMPORTANT FACTS
• Can infect chickpea, pea, faba bean, vetch, crimson clover and lambsquarters
• PEMV is not seed-transmitted
• No known resistant varieties
• Insecticides applied to manage aphid vector may help reduce secondary spread
• Can be confused with other viruses or damage from herbicides or thrips