Hybrid selection is your most important decision when it comes to managing sorghum aphids. Pioneer is committed to developing new hybrids in a wide range of maturities with enhanced sorghum aphid tolerance and the agronomic and defensive characteristics you need. Pioneer® brand sorghum hybrids with the Pioneer Protector® technology designation have a sorghum aphid tolerance rating of 5 or greater.
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Understanding Tools to Fight Sorghum Aphid
Sorghum aphid was first observed in grain sorghum fields in 2013. The pest has spread rapidly across Kansas, Louisiana, Mississippi, Oklahoma and Texas. It’s important to understand a few basics to ensure sorghum aphid doesn’t get out of control in your fields.
Genetics Are Key
Pioneer® brand sorghum features industry-leading genetics, exceptional yield potential and the best defensive package. Our cutting-edge breeding program focuses on identifying aphid-tolerant genetic markers. Our entomologists screen up to 400 hybrids per month for sorghum aphid tolerance.
Resistant Hybrids Do Not Exist
No sorghum hybrid is “aphid proof” but Pioneer® brand sorghum is available in a range of maturities -- several of which have demonstrated tolerance to sorghum aphid. We screen for aphid tolerance at three dedicated nurseries and in dozens of on-farm trials. (Photo: Infested sorghum leaf with all stages of sorghum aphid present.)
Proper Management Is a Must
It’s important to minimize stress on the plant by managing sorghum aphid and other aspects of growth and development. In addition to aphid tolerance, select hybrids for important agronomic traits like standability, head exsertion, disease resistance and drought tolerance.
Dedicated Sorghum Aphid Research Program
Pioneer researchers are continually developing new sorghum hybrids from our elite germplasm with enhanced sorghum aphid tolerance. Our team goes well beyond field observations to help ensure exceptional yield potential even under aphid pressure.
How to Manage Sorghum Aphid
Sorghum aphids reproduce exponentially on sorghum in a matter of days, severely stressing plants by sucking moisture out of leaves and depositing sticky honeydew that causes mold to grow, reducing photosynthesis. Follow these steps to best manage sorghum aphid.
Select Tolerant Hybrids
Hybrid selection remains your most important sorghum aphid management decision. Pioneer offers medium-early and medium-full sorghum hybrids with tolerance to sorghum aphid. Studies show that these tolerant hybrids slow sorghum aphid reproduction and withstand higher populations without yield loss. Look for Pioneer® brand sorghum hybrids with the Pioneer Protector® technology designation.
Control Weeds and Volunteer Plants
It’s important to control volunteer sorghum and weeds after harvest. Sorghum aphids can overwinter on volunteer sorghum plants and weeds such as Johnsongrass, setting up the following year’s sorghum crop for an early infestation.
Follow a Planting Plan
Sorghum aphids tend to become more active as temperatures increase. They seek out the newest sorghum plants. Planting early can give seedlings a head start before aphid populations multiply. Planting too late can make the field more of a target for hungry aphids.
Scout and Consider Insecticide Application
Tolerance is not the same as immunity -- and sorghum hybrids differ in their ability to tolerate sorghum aphid feeding. Regardless of your hybrid selection, it is important to regularly scout fields and apply an insecticide -- even to tolerant hybrids -- when infestations reach economic threshold levels.
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