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Rescooped by Knapco from Pest Alerts onto Plant Pests - Global Travellers |
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The U.S. Department of Agriculture’s Animal (USDA) and Plant Health Inspection Service (APHIS) are dedicating the month of April to sharing information about the threat that invasive plant pests, diseases and harmful weeds pose to America's fruits, vegetables, trees, and other plants—and how the public can help to prevent their spread."
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The plant ailment, known as "Fusarium dieback," was identified recently by UC Riverside extension plant pathologist Akif Eskalen. California is already battling the Asian citrus psyllid, which spreads a disease that is threatening the state's $2-billion citrus industry. Recently they have got a new problem: the tea shot hole borer is an ambrosia beetle about the size of a sesame seed. It carries the Fusarium fungus in its mouth. When the beetle burrows into an avocado tree, it infects the plant with the fungus. Fusarium then attacks the tree's vascular tissue, interrupting the flow of water and nutrients. Telltale signs of an infestation include dead or dying branches, as well as beetle exit holes on the bark of the tree's trunk or main branches. The wood near these exit holes may be discolored, wet-looking or be coated with a white, powdery substance. Delete the scoop?
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APS: Mango (Mangifera indica L.) malformation disease causes severe economic losses worldwide. Symptoms of this disease in Spain were observed for the first time in April of 2006 in three mango orchards in the Axarquia Region (southern Spain). The authors say that this is the first report of mango malformation disease caused by Fusarium mangiferae in Spain and Europe.
Crespo et al. (2012) First Report of Mango Malformation Disease Caused by Fusarium mangiferae in Spain, Plant Disease, Volume 96, Issue 2, Page 286, February 2012. http://dx.doi.org/10.1094/PDIS-07-11-0599 Mango malformation, which is caused by Fusarium mangiferae and represents the most important floral disease of mango, is also known as Gibberella fujikuroi complex. Kvas et al. (2008) Fusarium mangiferae associated with mango malformation in the Sultanate of Oman, EUROPEAN JOURNAL OF PLANT PATHOLOGY Volume 121, Number 2, 195-199, http://DOI: 10.1007/s10658-007-9231-8 Via Anne-Sophie Roy Delete the scoop?
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