Definition of leaf roll in English:
A virus disease of potatoes marked by upward curling of the leaves.
- It claims that their insect-resistant potato requires 40 percent less insecticide (for the Colorado potato beetle and aphids that transmit leaf roll virus disease) than other varieties.
- Just last year, or early this year, there were some major viral outbreaks of potato leaf roll virus in Australia.
- The biggest concern in the Pacific Northwest is the green peach aphid, because the aphid transmits leaf roll and other viruses.
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