Puccinia horiana, also known as chrysanthemum white rust, was detected at six locations in two counties in Connecticut, the Litchfield County Times (Conn.) reported last week. Additionally, the parasite also was found in Michigan, according to a USDA bulletin. According to the USDA, “Chrysanthemum white rust may be recognized by the small white to yellow […]
Kousa dogwood IDd as P. ramorum host
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USDA APHIS officials indicate they are planning to add the Kousa dogwood, Cornus kousa, to the list of plants that have been identified as hosts for Phytophthora ramorum, the destructive plant pathogen that’s also known as sudden oak death. The species of dogwood will now come under federal regulations designed to combat the spread of […]
Asian longhorned beetle found in Illinois, Massachusetts
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It’s long. It’s distinctive. And it chews dime-sized holes in many species of hardwood trees so that it can lay eggs in them, perpetuating a cycle that leads to infestation and the death of the tree.USDA officials are mobilizing a response after confirming the presence of the Asian longhorned beetle in Worcester, Mass. A resident […]
Emerald ash borer found in two states
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For the first time, the emerald ash borer has been detected in Missouri, as well as in Wisconsin. The adult borer doesn’t cause much harm to trees, but in larvae form, it’s a whole different story. The borer larvae consume the inner bark of ash trees, disrupting their vascular systems and causing them to dehydrate […]
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