 This virus is primarily transmitted non-persistently by many species of aphids and can take most members of the Cucurbitacea family and many leguminous species as hosts.The virus is more common in temperate regions as well as in the tropics though it has been reported in most countries where cucurbits are grown.Recently, WMV has been the cause of severe economic losses to crop yields of cucurbitaceous, leguminous, malvaceous and chenopodiaceous plants in temperate and Mediterranean regions.