{"id":29550,"date":"2025-01-15T20:59:13","date_gmt":"2025-01-15T20:59:13","guid":{"rendered":"https:\/\/peraltafinancing.com\/agriculture\/detecting-citrus-greening-disease-with-dogs\/"},"modified":"2025-01-15T20:59:13","modified_gmt":"2025-01-15T20:59:13","slug":"detecting-citrus-greening-disease-with-dogs","status":"publish","type":"post","link":"https:\/\/fivemor.com\/?p=29550","title":{"rendered":"Detecting Citrus Greening Disease with Dogs"},"content":{"rendered":"


\n<\/p>\n

\nThe article below is demonstrating a very smart plant disease detection methodology.\u00a0 While this disease is not in Australia it is still showing a very smart new and relevant option and maybe could be applied to other diseases as well.<\/p>\n

\nTrained Dogs Are the Most Efficient Way to
\nHunt Citrus Industry’s Biggest Threat<\/span><\/h2>\n
\nFORT PIERCE,
\nFlorida, Feb. 3, 2020\u2014<\/span><\/strong>Dogs specially trained by
\nAgriculture Research Service (ARS<\/span><\/a>)
\nscientists have proven to be the most efficient way to detect
\nhuanglongbing\u2014also known as citrus greening\u2014according to a paper just published
\nin the\u00a0Proceedings of the National Academy of Sciences<\/span><\/em><\/a>.<\/span><\/div>\n
\nCurrently, the only solid
\nhope of curtailing the spread of citrus greening is to eliminate trees with the
\ndisease as quickly as possible to prevent further spread. Early detection of
\nthe citrus greening pathogen is crucial because trees can be infected and act
\nas a source to spread the disease months or years before showing symptoms that
\nare detectable by the naked eye.<\/span><\/div>\n
\nARS plant epidemiologist\u00a0Timothy R.
\nGottwald<\/span><\/a>\u00a0with the\u00a0U.S.
\nHorticultural Research Laboratory<\/span><\/a>\u00a0in Fort Pierce, Florida,
\ndiscovered that dogs can be trained to sniff out the presence of\u00a0Candidatus Liberibacter asiaticus,<\/span><\/em>\u00a0the
\nbacteria that causes citrus greening, with greater than 99 percent
\naccuracy.\u00a0<\/span><\/div>\n
\n“We found that, once
\ntrained, these dogs were able to identify infected trees within two weeks of
\nthe trees being inoculated,” Gottwald said. “The dogs also were able
\nto distinguish the citrus greening pathogen from a variety of other citrus
\nbacterial, viral, fungal, and spiroplasma pathogens, including closely related
\nLiberibacter species.<\/span><\/div>\n
\nDuring testing, the citrus
\ngreening detector dogs had total of 4 to 15 false negatives and false positives
\non 950 to 1,000 trees per dog. Occasionally, the dogs alerted on clean trees
\nthat were in the same spot where an inoculated tree had been placed in previous
\ntests due to residual scent.<\/span><\/div>\n
\nIn contrast, the only
\ncurrently USDA-approved method for confirming the presence of the citrus
\ngreening pathogen\u2014a DNA-based assay called a polymerase chain reaction (PCR)
\ntest detected less than 3 percent of infections at 2 months, 16 of 30
\ninoculated trees at 16 months, and 20 out of 30 in 17 months.<\/span><\/div>\n
\nPCR tests also require
\nconsiderable time, financial and human resources for sampling, processing and
\nlaboratory work. They are very expensive to use as a general surveillance tool.<\/span><\/div>\n
\nThe training is similar to
\nthat of explosives sniffing dogs, in which the dogs are taught to recognize a
\nparticular odor and to sit down next to the source once found. The dogs are
\nrewarded with play time with a toy.\u00a0 However training is more extensive
\nand specific because the dogs are trained to detect a bacteria infecting a plant,
\nand the two cannot be separated.<\/span><\/div>\n
\nSo far, Gottwald’s program
\nhas trained 19 dogs obtained from European breeders of detection canines
\nbecause of their keen abilities and drive.\u00a0(Watch a video<\/span><\/a>)<\/span><\/div>\n
\n“When we ran
\nepidemiological models, we found canine detection combined with infected tree
\nremoval would allow the citrus industry to remain economically sustainable over
\na 10-year period, compared to using molecular assays or visual inspection
\ncombined with tree removal, which failed to suppress the spread of
\ninfection,” Gottwald explained.<\/span><\/div>\n
\nCitrus green sniffing dogs
\nhave been deployed for 9 months in California and northern Florida.<\/span><\/div>\n
\nIn the past decade,
\nhuanglongbing has caused more than 70 percent decline in the production of
\noranges for juice and the fresh fruit market in Florida and threatens other
\nstates, making it the largest economic threat to the $3.35 billion U.S. citrus
\nindustry. It was first found in the United States in 2005, citrus greening has
\nspread to Florida, Texas, California, Georgia, and Louisiana.<\/span><\/div>\n

<\/p>\n<\/div>\n\n","protected":false},"excerpt":{"rendered":"

The article below is demonstrating a very smart plant disease detection methodology.\u00a0 While this disease is not in Australia it is still showing a very smart new and relevant option and maybe could be applied to other diseases as well. Trained Dogs Are the Most Efficient Way to Hunt Citrus Industry’s Biggest Threat FORT PIERCE, […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[12026],"tags":[20023,20022,13375,5805,20024],"dealstore":[],"offerexpiration":[],"class_list":["post-29550","post","type-post","status-publish","format-standard","hentry","category-agriculture","tag-citrus","tag-detecting","tag-disease","tag-dogs","tag-greening"],"yoast_head":"\nDetecting Citrus Greening Disease with Dogs - Som2ny Network<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/fivemor.com\/?p=29550\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Detecting Citrus Greening Disease with Dogs - Som2ny Network\" \/>\n<meta property=\"og:description\" content=\"The article below is demonstrating a very smart plant disease detection methodology.\u00a0 While this disease is not in Australia it is still showing a very smart new and relevant option and maybe could be applied to other diseases as well. 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