Tag Archives: Sugarcane aphid

2017 Corpus Christi Agriculture Symposium

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On Tuesday April 18th the 2017 Corpus Christi Agriculture Symposium will be held from 7:30am-12:15pm at the Calhoun County AgriLife Extension Office Auditorium. 186 Henry Barber Way Port Lavaca, TX 77979. 2 IPM CEU’s will be offered. The cost is $10. This symposium will be held by webinar, you do not have to bring a laptop. Agenda 7:30-8:00 am  REGISTRATION 8:00: The Use of Drones in Ranching – Dr. Megan Clayton, Extension Range Specialist 8:30: Weed Management Update– Dr. Joshua McGinty, Extension Agronomist 9:00: Managing Sugarcane Aphid with… Read More →

Cutworms and Aphid IPM

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The two top insect responses in the “One Question Survey” were Cutworms and Aphids. Cutworms are the larval stage of moths, several species of which damage corn, grain sorghum and cotton.  The  cutworms species may include Army cutworm, black cutworm, granulate cutworm, pale western cutworm, variegated cutworm. Cutworms are dingy, gray-black and smooth-skinned (greasy appearance) robust bodied caterpillars that may reach 1-1/2 inches long. When disturbed, the caterpillars curl up tightly into a C-shape. Larvae overwinter and become active in the spring, feeding on a wide variety of plants. Adults… Read More →

EPA Approves Section 18 for Transform on Grain Sorghum

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The Environmental Protection Agency (EPA) has notified Texas Department of Agriculture of the approval of the insecticide Transform (sulfoxaflor) for control of sugarcane aphids in grain sorghum. According to the Section 18 notice, Transform WG may be applied by ground or air at a rate of 0.75-1.5 oz of product per acre.  A maximum of 2 applications may be made per year.  Do not aply Transform ≤3 days pre-bloom or until after seed set.  Applications must be made with medium to course spray nozzles (median droplet size of… Read More →

Mid-Coast IPM Update

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Harvest has begun for both grain sorghum and corn.  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.  This insect can reduce yield until hard dough.  The aphid can contribute to harvest difficulty after black layer by producing sticky honeydew.  The honeydew can stick plant material together as it goes through the combine.  In worse cases, this can clog the feeder or cause grain to pass out of the… Read More →

Mid Coast Grain Sorghum Update

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Grain Sorghum maturity ranges from milk to near harvest.  Some fields may have already been harvested.  The primary insect pests in post bloom sorghum is stink bugs, headworms and aphids. Stink bugs and headworms can cause economic losses until hard dough.  Once the seed is at hard dough, these pests are no longer an issue. The economic threshold for headworms ranges from 0.15 to 1 large worm (> 0.5 inch) per head.  For medium worms (0.25-0.5 inch) the ET ranges 0.8 to 2 per head.  The threshold for… Read More →