{"id":1810,"date":"2021-07-13T11:43:59","date_gmt":"2021-07-13T16:43:59","guid":{"rendered":"https:\/\/agrilife.org\/mid-coast-ipm\/?p=1810"},"modified":"2021-07-13T11:45:12","modified_gmt":"2021-07-13T16:45:12","slug":"cotton-near-cutout","status":"publish","type":"post","link":"https:\/\/agrilife.org\/mid-coast-ipm\/cotton-near-cutout\/","title":{"rendered":"Cotton Near Cutout"},"content":{"rendered":"

\"\"<\/a>Much of our cotton fields are at or near cutout.\u00a0 The fields we have been in this week range from 2-6 nodes above white flower (NAWF).\u00a0 Keep in mind the time for a white bloom to\u00a0 mature into an open boll is around 50 days.<\/p>\n

We are finding bollworms in non-Bt and 2-gene Bt cotton such as Bollgard 2 and Twin-Link cotton varieties.\u00a0 I have not found much damage or worms in the 3-gene cotton varieties containing the VIP gene.<\/p>\n

Treat cotton fields when square and boll damage exceeds 6% and worms are present.\"\"<\/a><\/p>\n

While evidence of stink bug feeding has been low, we are finding brown stink bugs and eggs in soybean and cotton fields. Continue to monitor for stink bugs and treat when evidence of internal feeding on 1″-bolls exceeds 20%.<\/p>\n

Measure NAWF by counting the number of main stem nodes above the first position white flower. The crop is usually at 8 to 9 NAWF at first bloom.\u00a0 This value moves lower as the season progresses.\u00a0 We consider the crop at Cutout<\/span> when the field average is 5 NAWF.\"\"<\/a><\/p>\n

Mark the date when the crop reaches cutout so you can determine when the field is safe from insect pests and help determine when to defoliate.<\/p>\n

A cotton field is safe from bollworms 350 Heat Units (HU) after cutout and safe from stink bug feeding at 450 HU after cutout.\u00a0 We generally accumulate 22-23 HU per day during July. This means your crop is safe from bollworms and stink bugs 18-20 days after cutout.\"\"<\/a><\/p>\n

Additional Resources:<\/p>\n

IPM Audio Updates<\/a><\/p>\n

Upper Coast IPM News<\/a><\/p>\n

Preharvest Sprouting or Weathering of Grain Sorghum<\/a><\/p>\n

Cotton Insect Management Guide<\/a><\/p>\n

<\/p>\n

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

Much of our cotton fields are at or near cutout.\u00a0 The fields we have been in this week range from 2-6 nodes above white flower (NAWF).\u00a0 Keep in mind the time for a white bloom to\u00a0 mature into an open boll is around 50 days. We are finding bollworms in non-Bt and 2-gene Bt cotton such as Bollgard 2 and Twin-Link cotton varieties.\u00a0 I have not found much damage or worms in the 3-gene cotton varieties containing the VIP gene. Treat cotton fields when square and boll damage… Read More →<\/a><\/span><\/p>\n","protected":false},"author":1158,"featured_media":1811,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"_monsterinsights_skip_tracking":false,"_monsterinsights_sitenote_active":false,"_monsterinsights_sitenote_note":"","_monsterinsights_sitenote_category":0,"footnotes":""},"categories":[11],"tags":[15,66,32],"class_list":["post-1810","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-pest-management-news","tag-cotton","tag-cotton-bollworm","tag-stink-bugs"],"acf":[],"yoast_head":"\nCotton Near Cutout - Mid-Coast IPM<\/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:\/\/agrilife.org\/mid-coast-ipm\/cotton-near-cutout\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Cotton Near Cutout - Mid-Coast IPM\" \/>\n<meta property=\"og:description\" content=\"Much of our cotton fields are at or near cutout.\u00a0 The fields we have been in this week range from 2-6 nodes above white flower (NAWF).\u00a0 Keep in mind the time for a white bloom to\u00a0 mature into an open boll is around 50 days. We are finding bollworms in non-Bt and 2-gene Bt cotton such as Bollgard 2 and Twin-Link cotton varieties.\u00a0 I have not found much damage or worms in the 3-gene cotton varieties containing the VIP gene. Treat cotton fields when square and boll damage... 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