{"id":369,"date":"2016-05-02T19:11:33","date_gmt":"2016-05-02T19:11:33","guid":{"rendered":"http:\/\/agrilife.org\/mid-coast-ipm\/?p=369"},"modified":"2016-05-02T19:11:33","modified_gmt":"2016-05-02T19:11:33","slug":"aphid-management-in-sorghum","status":"publish","type":"post","link":"https:\/\/agrilife.org\/mid-coast-ipm\/aphid-management-in-sorghum\/","title":{"rendered":"Aphid Management in Sorghum"},"content":{"rendered":"

Aphids are being found in many of the sorghum fields of the Coastal Bend of Texas.\u00a0 Some sorghum fields are no longer protected by the insecticide seed treatments and several kinds of aphids are being found in these fields.<\/p>\n

Corn leaf aphids, yellow sugarcane aphids and sugarcane aphids are all being found in sorghum fields.\u00a0 It is important to be able to distinguish between these aphids as their economic thresholds are different.<\/p>\n

The Corn Leaf Aphid \"Sorghum<\/a>is usually green, with dark cornicles (tail pipes) and dark legs.\u00a0 Yellow Sugarcane Aphids are yellow and appear hairy with no obvious cornicles.\u00a0 The Sugarcane aphid is yellow to light tan with dark cornicles and tarsi (feet).<\/p>\n

Corn leaf rarely reach damaging populations.\u00a0 They would require more than 100-300 per leaf to reduce yield.\u00a0 This aphid is generally thought to be beneficial as it provides a food source for aphid predators prior to the arrival of the other, more damaging, species of aphids.<\/p>\n

The yellow sugarcane aphid is more damaging at lower populations because the yellow sugarcane aphid (YSA) injects a toxin into the plant.\u00a0 An insecticide application would be justified when ten to forty percent of plants at the one- to three-leaf stages are infested.<\/p>\n

For sugarcane aphids, treatment\u00a0should be considered when sugarcane aphid populations exceed 50-125 aphids per leaf<\/strong>.\u00a0 While the aphid is present in many of these fields, there is no cause for alarm until their numbers rise above 50 aphids per leaf.<\/p>\n

A new Extension publication \u201cSugarcane Aphid: Management Guidelines for Grain and Forage Sorghums in Texas\u201d is now available.\u00a0 It can now be accessed HERE<\/a>.\u00a0 This document provides the most up to date information on managing the sugarcane aphid in Texas sorghum.<\/p>\n","protected":false},"excerpt":{"rendered":"

Aphids are being found in many of the sorghum fields of the Coastal Bend of Texas.\u00a0 Some sorghum fields are no longer protected by the insecticide seed treatments and several kinds of aphids are being found in these fields. Corn leaf aphids, yellow sugarcane aphids and sugarcane aphids are all being found in sorghum fields.\u00a0 It is important to be able to distinguish between these aphids as their economic thresholds are different. The Corn Leaf Aphid is usually green, with dark cornicles (tail pipes) and dark legs.\u00a0 Yellow… Read More →<\/a><\/span><\/p>\n","protected":false},"author":1158,"featured_media":350,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"_monsterinsights_skip_tracking":false,"footnotes":""},"categories":[11],"tags":[25,6,7],"class_list":["post-369","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-pest-management-news","tag-economic-threshold","tag-sorghum","tag-sugarcane-aphid"],"acf":[],"yoast_head":"\nAphid Management in Sorghum - 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\/aphid-management-in-sorghum\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Aphid Management in Sorghum - Mid-Coast IPM\" \/>\n<meta property=\"og:description\" content=\"Aphids are being found in many of the sorghum fields of the Coastal Bend of Texas.\u00a0 Some sorghum fields are no longer protected by the insecticide seed treatments and several kinds of aphids are being found in these fields. Corn leaf aphids, yellow sugarcane aphids and sugarcane aphids are all being found in sorghum fields.\u00a0 It is important to be able to distinguish between these aphids as their economic thresholds are different. The Corn Leaf Aphid is usually green, with dark cornicles (tail pipes) and dark legs.\u00a0 Yellow... 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