{"id":335446,"date":"2026-05-28T03:26:07","date_gmt":"2026-05-28T03:26:07","guid":{"rendered":"https:\/\/www.newsbeep.com\/us-ca\/335446\/"},"modified":"2026-05-28T03:26:07","modified_gmt":"2026-05-28T03:26:07","slug":"california-wine-growers-warn-of-invasive-pest-threat","status":"publish","type":"post","link":"https:\/\/www.newsbeep.com\/us-ca\/335446\/","title":{"rendered":"California wine growers warn of invasive pest threat"},"content":{"rendered":"<p>\n\t\t\t\t\t\tCalifornia wine growers are sounding the alarm over the glassy-winged sharpshooter, an invasive insect recently discovered on grapevines sold at Costco stores across Northern California that poses a serious threat to vineyards and agriculture.\u201cIt attacks the vine and eventually kills it,\u201d said wine grower Nello Olivo, who said his vineyard has dealt with destructive pests before.\u201cWe have a Mealybug issue here. It\u2019s the same thing. Same issue. In other words, it\u2019ll kill the vine if you let it grow,\u201d Olivo said.The glassy-winged sharpshooter can spread Pierce\u2019s disease, a bacterial infection that causes grapevines to yellow, dry out, shrivel and eventually die. Sacramento County agricultural officials said the invasive pest was found on grapevines and other Burchell Nursery plants sold at Costco stores between April 21 and May 21.The warning now spans multiple counties, including Sacramento, Yolo, Napa, Sonoma, Marin and Solano counties. Officials say the infested plants were shipped from a Fresno County nursery and could still be in customers\u2019 homes or backyards.\u201cIf that infects Napa, for example, it\u2019ll just kill all the vines. Then, at that point, they got to get rid of it. And the only thing they can do is tear it all up,\u201d Olivo said.Sacramento County officials are urging anyone who purchased grapevines or Burchell Nursery plants during that timeframe not to plant, move or throw them away. Instead, residents are being asked to isolate the plants and contact their local agricultural commissioner\u2019s office for inspection and removal. Officials said agricultural inspectors can respond the same day, and monitoring traps may also be placed nearby as a precaution.The Sacramento County Department of Agriculture said protecting the region\u2019s vineyards remains a major concern because of the area\u2019s large grape-growing industry.KCRA 3 has reached out to Costco for comment.To combat the spread, agricultural crews are using yellow sticky traps and other monitoring tools throughout vineyards to detect the pest early.For growers like Olivo, the concern is that the tiny insect could leave massive damage behind.\u201cThat would be devastating to the grape growers,\u201d he said. See more coverage of top California stories here | Download our app | Subscribe to our morning newsletter | Find us on YouTube here and subscribe to our channel | Make KCRA a preferred news source in Google\n\t\t\t\t\t<\/p>\n<p>\t\t\t\t\t\tSACRAMENTO COUNTY, Calif. \u2014 \t\t\t\t\t\t\t\t\t\t\t\t\t<\/p>\n<p>California wine growers are sounding the alarm over the glassy-winged sharpshooter, an invasive insect recently discovered on grapevines sold at Costco stores across Northern California that poses a serious threat to vineyards and agriculture.<\/p>\n<p>\u201cIt attacks the vine and eventually kills it,\u201d said wine grower Nello Olivo, who said his vineyard has dealt with destructive pests before.<\/p>\n<p>\u201cWe have a Mealybug issue here. It\u2019s the same thing. Same issue. In other words, it\u2019ll kill the vine if you let it grow,\u201d Olivo said.<\/p>\n<p>The glassy-winged sharpshooter can spread Pierce\u2019s disease, a bacterial infection that causes grapevines to yellow, dry out, shrivel and eventually die. Sacramento County agricultural officials said the invasive pest was found on grapevines and other Burchell Nursery plants sold at Costco stores between April 21 and May 21.<\/p>\n<p>The warning now spans multiple counties, including Sacramento, Yolo, Napa, Sonoma, Marin and Solano counties. Officials say the infested plants were shipped from a Fresno County nursery and could still be in customers\u2019 homes or backyards.<\/p>\n<p>\u201cIf that infects Napa, for example, it\u2019ll just kill all the vines. Then, at that point, they got to get rid of it. And the only thing they can do is tear it all up,\u201d Olivo said.<\/p>\n<p>Sacramento County officials are urging anyone who purchased grapevines or Burchell Nursery plants during that timeframe not to plant, move or throw them away. Instead, residents are being asked to isolate the plants and contact their local agricultural commissioner\u2019s office for inspection and removal. Officials said agricultural inspectors can respond the same day, and monitoring traps may also be placed nearby as a precaution.<\/p>\n<p>The Sacramento County Department of Agriculture said protecting the region\u2019s vineyards remains a major concern because of the area\u2019s large grape-growing industry.<\/p>\n<p>KCRA 3 has reached out to Costco for comment.<\/p>\n<p>To combat the spread, agricultural crews are using yellow sticky traps and other monitoring tools throughout vineyards to detect the pest early.<\/p>\n<p>For growers like Olivo, the concern is that the tiny insect could leave massive damage behind.<\/p>\n<p>\u201cThat would be devastating to the grape growers,\u201d he said. <\/p>\n<p><a href=\"https:\/\/www.kcra.com\/\" rel=\"nofollow noopener\" target=\"_blank\">See more coverage of top California stories here<\/a> |<a href=\"https:\/\/www.kcra.com\/article\/get-kcra-news-on-the-go-download\/44039145\" rel=\"nofollow noopener\" target=\"_blank\"> Download our app<\/a> |<a href=\"https:\/\/www.kcra.com\/subscribe\" rel=\"nofollow noopener\" target=\"_blank\"> Subscribe to our morning newsletter<\/a> |<a href=\"https:\/\/www.youtube.com\/@KCRA\" rel=\"nofollow noopener\" target=\"_blank\"> Find us on YouTube here and subscribe to our channel<\/a> |<a href=\"https:\/\/www.google.com\/preferences\/source?q=kcra.com\" rel=\"nofollow noopener\" target=\"_blank\"> Make KCRA a preferred news source in Google<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"California wine growers are sounding the alarm over the glassy-winged sharpshooter, an invasive insect recently discovered on grapevines&hellip;\n","protected":false},"author":2,"featured_media":335447,"comment_status":"","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[6],"tags":[1955,119993,7,9,8,138566,2363,138561,21620,138558,138170,25955,5152,138567,91929,138563,3666,473,138564,8027,3335,138562,138565,138568,138559,19583,42669,138557,11266,138560,3945,3937],"class_list":["post-335446","post","type-post","status-publish","format-standard","has-post-thumbnail","category-california","tag-agriculture","tag-bugs","tag-california","tag-california-headlines","tag-california-news","tag-california-wine-grower","tag-costco","tag-costco-store","tag-crops","tag-glassy-winged","tag-glassy-winged-sharpshooter","tag-grapes","tag-grapevine","tag-infested-plant","tag-insect","tag-invasive-pest-threat","tag-irrigation","tag-kcra","tag-major-concern","tag-napa","tag-official","tag-olivo","tag-other-burchell-nursery-plant","tag-sacramento-county-agricultural-official","tag-sharpshooter","tag-trees","tag-vine","tag-vines","tag-vineyard","tag-vino","tag-wine","tag-wine-country"],"_links":{"self":[{"href":"https:\/\/www.newsbeep.com\/us-ca\/wp-json\/wp\/v2\/posts\/335446","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.newsbeep.com\/us-ca\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.newsbeep.com\/us-ca\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.newsbeep.com\/us-ca\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/www.newsbeep.com\/us-ca\/wp-json\/wp\/v2\/comments?post=335446"}],"version-history":[{"count":0,"href":"https:\/\/www.newsbeep.com\/us-ca\/wp-json\/wp\/v2\/posts\/335446\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.newsbeep.com\/us-ca\/wp-json\/wp\/v2\/media\/335447"}],"wp:attachment":[{"href":"https:\/\/www.newsbeep.com\/us-ca\/wp-json\/wp\/v2\/media?parent=335446"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.newsbeep.com\/us-ca\/wp-json\/wp\/v2\/categories?post=335446"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.newsbeep.com\/us-ca\/wp-json\/wp\/v2\/tags?post=335446"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}