{"id":10872,"date":"2015-05-29T14:44:39","date_gmt":"2015-05-29T18:44:39","guid":{"rendered":"https:\/\/extension.umaine.edu\/blueberries\/?p=10872"},"modified":"2020-04-15T11:38:14","modified_gmt":"2020-04-15T15:38:14","slug":"botrytis-infection-risk-may-28th-to-may-29th-2015","status":"publish","type":"post","link":"https:\/\/extension.umaine.edu\/blueberries\/2015\/05\/29\/botrytis-infection-risk-may-28th-to-may-29th-2015\/","title":{"rendered":"5.29.15 Botrytis Infection Risk, May 28 to May 29"},"content":{"rendered":"
\"Botrytis<\/a>
Botrytis infected flowers showing black “hairs” with spores<\/figcaption><\/figure>\n
\"\"<\/a>
Botrytis infection of flowers showing short “hairs”<\/figcaption><\/figure>\n

There were weather conditions that provided for some risk of Botrytis infection from the rain storms that came through from Thursday, May 28 to Friday, May 29. Please see the chart below for the risk in your area.<\/p>\n

IF you have already seen Botrytis in your field, then you may have more if you were in an area with moderate to high risk of infection.\u00a0 If you do NOT have Botrytis already in your field, then the weather will have had no effect since you do NOT have any Botrytis spores to be spread and infect the plants.\u00a0\u00a0 You should check your clones in full bloom for Botrytis infections in the next few days to double check.\u00a0 With Botrytis infection, the blossoms will be dead AND have black hairs sticking out of them (use a hand lens to look for them and see pictures below).\u00a0 If you have dead blossoms and they do NOT have hairs, they were probably killed by Monilinia, mummy berry blight, and there is nothing you can do at this point since Monilinia fungus at this stage will not spread and kill more flowers.<\/p>\n

I do NOT recommend any applications of fungicide unless you are sure you have identified Botrytis on your blueberries and there is going to be enough wet weather that if it spreads you are at risk of losing a lot of your bloom.\u00a0 If you do not have Botrytis already in your field,\u00a0 there is no point on spending time and money on fungicide applications for problems that do not exist. \u00a0 Any fungicide application during bloom risks disturbing the pollinators in your field and fungicide residues may discourage pollinators from visiting your plants for a while or cause other effects on them.<\/p>\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
Location 2015<\/strong><\/td>\nBotrytis Risk from May 28 to May 29<\/strong><\/td>\n<\/tr>\n<\/thead>\n
Dresden Mills<\/td>\nModerate<\/td>\n<\/tr>\n
West Rockport<\/td>\nHigh<\/td>\n<\/tr>\n
Appleton<\/td>\nHigh<\/td>\n<\/tr>\n
Belfast<\/td>\nLow<\/td>\n<\/tr>\n
Ellsworth<\/td>\nModerate<\/td>\n<\/tr>\n
Eastbrook\/Waltham<\/td>\nLow<\/td>\n<\/tr>\n
Aurora<\/td>\nweather station not functioning<\/td>\n<\/tr>\n
Deblois<\/td>\nModerate<\/td>\n<\/tr>\n
Columbia<\/td>\nModerate<\/td>\n<\/tr>\n
East Machias<\/td>\nVery low<\/td>\n<\/tr>\n
Wesley<\/td>\nHigh<\/td>\n<\/tr>\n
Love Lake\/Crawford<\/td>\nHigh<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

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

There were weather conditions that provided for some risk of Botrytis infection from the rain storms that came through from Thursday, May 28 to Friday, May 29. Please see the chart below for the risk in your area. IF you have already seen Botrytis in your field, then you may have more if you were […]<\/p>\n","protected":false},"author":3,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_kad_blocks_custom_css":"","_kad_blocks_head_custom_js":"","_kad_blocks_body_custom_js":"","_kad_blocks_footer_custom_js":"","_monsterinsights_skip_tracking":false,"_monsterinsights_sitenote_active":false,"_monsterinsights_sitenote_note":"","_monsterinsights_sitenote_category":0,"footnotes":""},"categories":[133,2,5],"tags":[],"class_list":["post-10872","post","type-post","status-publish","format-standard","hentry","category-133","category-news","category-other-diseases-2"],"yoast_head":"\n5.29.15 Botrytis Infection Risk, May 28 to May 29 - Cooperative Extension: Maine Wild Blueberries - University of Maine Cooperative Extension<\/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:\/\/extension.umaine.edu\/blueberries\/2015\/05\/29\/botrytis-infection-risk-may-28th-to-may-29th-2015\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"5.29.15 Botrytis Infection Risk, May 28 to May 29 - Cooperative Extension: Maine Wild Blueberries - University of Maine Cooperative Extension\" \/>\n<meta property=\"og:description\" content=\"There were weather conditions that provided for some risk of Botrytis infection from the rain storms that came through from Thursday, May 28 to Friday, May 29. 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