Symptoms:

• A virus distributed world wide, affecting most cucurbits but rarely affecting watermelon.
• New growth is cupped downward, and leaves are severely mottled with alternating light green and dark green patches.
• Plants are stunted, and fruits are covered with bumpy protrusions. Severely affected cucumber fruit may be almost entirely white.

Management

• The virus is readily transferred by aphids and survives on a wide variety of plants.
• Varietal resistance is the primary management tool, and eliminating weeds and infected perennial ornamentals that may harbor the virus is critical.
• Spray with any one of the systemic insecticide