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Pseudoperonospora cubensis is an obligate parasite or biotroph, meaning that it requires live host tissue in order to survive and reproduce.Because of this characteristic, the pathogen must overwinter in an area that does not experience a hard frost, such as southern Florida, and where wild or cultivated cucurbits are present.
Cucumber mosaic virus (CMV) is a plant pathogenic virus [1] in the family Bromoviridae. [2] This virus has a worldwide distribution and a very wide host range, [ 3 ] having the reputation of the widest host range of any known plant virus. [ 4 ]
Cucumber leaves afflicted with various stages of Cucumber mosaic virus. A mosaic virus is any virus that causes infected plant foliage to have a mottled appearance. Such viruses come from a variety of unrelated lineages and consequently there is no taxon that unites all mosaic viruses.
Melina Khan, USA TODAY NETWORK - New England August 15, 2024 at 11:09 AM A salmonella outbreak linked to cucumbers has made people sick in more than 30 states, including nearly a dozen people in ...
The virus affects the young leaves with green and light green spots, even yellow-green spots. These spots have a slower development rate than the rest of the leaf. Sometimes the veins remain green. In heavy infection young leaves are even deformed. The activity of the virus is reduced when the leaf ages. Fruit drop (abortion) is common.
A cucumber recall under investigation by the U.S. Centers for Disease Control and Prevention (CDC) has led to over 400 illnesses due to contamination with the bacteria salmonella.
Melina Khan, USA TODAY NETWORK - New England August 15, 2024 at 2:20 PM A salmonella outbreak linked to cucumbers has made people sick in more than 30 states, including several in Rhode Island.
Squash mosaic virus (SqMV) is a mosaic virus disease common in squash plants and other plants, including melons, of the family Cucurbitaceae. [1] It occurs worldwide. [1] It is transmitted primarily by beetles, including the leaf beetle (Acalymma trivittata), spotted cucumber beetle (Diabrotica undecimpunctata), [2] [3] and 28-spotted ladybird beetle (Henosepilachna vigintioctopunctata), [1 ...