Watermelon
mosaic virus
First discovered in squash.
Watermelon mosaic virus is common in temperate regions as well as in
the tropics. It has been reported in most countries where cucurbits
are grown.
Symptoms:
foliar symptoms include green mosaic, leaf rugosity, green
vein banding, chlorotic rings, and malformation. Fruits are distorted
and green spots can occur, especially on yellow fruit.
Control: in addition to
mineral oil sprays to interfere with the virus transmissions and
insecticides to control aphid populations,
resistant cultivars can effectively control WMV. |