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Views: 913
Updated
January 1, 2014
Description
Aster yellows is a phytoplasma organism. Phytoplasmas are specialized wall-less bacteria that are parasites known only to multiply in plant phloem tissue and insect vectors. There are 28 groups...
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Views: 1107
Updated
January 1, 2014
Description
The cereal leaf beetle is an invasive insect from Europe that feeds on cereal crops, including wheat, barley and oats. It was first discovered in Alberta in 2005 and is now widespread throughout...