{"id":500,"date":"2016-07-07T10:24:03","date_gmt":"2016-07-07T15:24:03","guid":{"rendered":"http:\/\/agrilife.org\/mid-coast-ipm\/?p=500"},"modified":"2016-07-07T10:24:03","modified_gmt":"2016-07-07T15:24:03","slug":"mid-coast-ipm-update","status":"publish","type":"post","link":"https:\/\/agrilife.org\/mid-coast-ipm\/mid-coast-ipm-update\/","title":{"rendered":"Mid-Coast IPM Update"},"content":{"rendered":"

Harvest has begun for both grain sorghum and corn.\u00a0 Thus far I have heard reports of sorghum yield ranging between 6000 and 7500 lbs\/acre.<\/p>\n

Sugarcane aphids<\/strong> continue to be found in sorghum fields in relatively low numbers.\u00a0 This insect can reduce yield until hard dough.\u00a0 The aphid can contribute to harvest difficulty after black layer by producing sticky honeydew.\u00a0 The honeydew can stick plant material together as it goes through the combine.\u00a0 In worse cases, this can clog the feeder or cause grain to pass out of the combine.<\/p>\n

Stink bugs<\/strong> are beginning to show up in both cotton and soybean fields.\u00a0 This may increase as grain harvest continues and the stink bugs leave the harvested fields to other food sources.<\/p>\n

\"Rice<\/a>

Rice Stink Bug<\/p><\/div>\n

Stink bug identification can be important when determining when to treat a field.\u00a0 For example, if Rice Stink Bugs are found in a cotton or soybean field, they should not be counted as a pest as they are primarily grass feeding stink bugs and do not contribute significantly as a cotton or soybean pest.\u00a0 Two pages for stink bug ID are HERE<\/a> and HERE<\/a><\/p>\n

Cotton<\/strong> fields should be checked for evidence of feeding in 1-inch bolls.\u00a0 To check for evidence of feeding, pull 50, 1-inch bolls off of cotton plants from several places in a field.\u00a0 These bolls should be popped open to look for wart growth on the internal boll wall, or discoloration on the lint or seed.\u00a0 The economic threshold for stink bugs in cotton is when more than 20% of the 1-inch cotton bolls have evidence of internal feeding.<\/p>\n

\"Stink<\/a>

Stink Bug Eggs<\/p><\/div>\n

In soybeans<\/strong>, check for stink bug using either a sweep net or a drop cloth.\u00a0 When sweeping fields, be sure the sweep net passes through the plant where the soybeans are developing.\u00a0 I tend to sweep the net below the top 6 inches of the plant.\u00a0 If done properly, this will damage plants.\u00a0 I usually make 10 passes with the sweep net across the row, then check the net for insects.\u00a0 I will often take 4-5 samples of 10 sweeps at each of 4-5 locations in a field.<\/p>\n

When sampling with a drop cloth, shake the plants on either side of the row over the sheet and check for bugs.\u00a0 this should be done at 10-15 places per site at 4-5 sites per field.<\/p>\n

Stink bug economic thresholds in soybeans are when more than 36 stink bugs are found per 100 sweeps (1 per foot of row with a drop cloth).\u00a0 If red banded stink bugs make up a significant part of the sting bugs collected, treat when more than 12-16 bugs are found per 100 sweeps or 1 per 2-3 feet or row with a drop cloth.<\/p>\n

\"Cotton<\/a>

Cotton Bollworm<\/p><\/div>\n

Other pests in Cotton include bollworms and verde plant bugs.\u00a0 Verde plant bugs can be found and treatment is warranted when more than 20-25 bugs are found per 100 plants.\u00a0 This pest will also be detected by checking for internal boll feeding for stink bugs as it can cause the same kind of injury.\u00a0 The latest planted cotton is in bloom and is no longer vulnerable to cotton fleahopper causing yield loss.<\/p>\n

Bollworms are being found in many Bt cotton fields.\u00a0 Treatment may be needed when more than 5000 worms larger than 1\/4 inch are found.<\/p>\n","protected":false},"excerpt":{"rendered":"

Harvest has begun for both grain sorghum and corn.\u00a0 Thus far I have heard reports of sorghum yield ranging between 6000 and 7500 lbs\/acre. Sugarcane aphids continue to be found in sorghum fields in relatively low numbers.\u00a0 This insect can reduce yield until hard dough.\u00a0 The aphid can contribute to harvest difficulty after black layer by producing sticky honeydew.\u00a0 The honeydew can stick plant material together as it goes through the combine.\u00a0 In worse cases, this can clog the feeder or cause grain to pass out of the… Read More →<\/a><\/span><\/p>\n","protected":false},"author":1158,"featured_media":502,"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":[15,25,19,6,17,32,7],"class_list":["post-500","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-pest-management-news","tag-cotton","tag-economic-threshold","tag-field-scouting","tag-sorghum","tag-soybean","tag-stink-bugs","tag-sugarcane-aphid"],"acf":[],"yoast_head":"\nMid-Coast IPM Update - 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\/mid-coast-ipm-update\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Mid-Coast IPM Update - Mid-Coast IPM\" \/>\n<meta property=\"og:description\" content=\"Harvest has begun for both grain sorghum and corn.\u00a0 Thus far I have heard reports of sorghum yield ranging between 6000 and 7500 lbs\/acre. Sugarcane aphids continue to be found in sorghum fields in relatively low numbers.\u00a0 This insect can reduce yield until hard dough.\u00a0 The aphid can contribute to harvest difficulty after black layer by producing sticky honeydew.\u00a0 The honeydew can stick plant material together as it goes through the combine.\u00a0 In worse cases, this can clog the feeder or cause grain to pass out of the... 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