Monitor Corn Rootworm Hatch With Insect Forecast Tool

Corn Rootworm LarvaeOver the past two seasons, growers across the Corn Belt have participated in an online, early warning system tool to monitor above ground pests that could threaten their corn yields.

For 2012, this sophisticated program, known as the Insect Forecast tool, has been enhanced to track another economically damaging pest – corn rootworm – as well as to offer users expanded online and mobile access.

Matt Kirkpatrick, Monsanto corn traits marketing manager, says growers can now log onto the site to learn when corn rootworm larvae are hatching in their area, allowing for better timing to scout their fields for potential root damage. The corn rootworm hatch varies by geography, but typically occurs from early- to mid-June in the Corn Belt and often coincides with the first appearance of lightening bugs.

“The Insect Forecast tool this season will also continue to track the migration of two damaging above ground insects – corn earworm and western bean cutworm – that can significantly reduce yield by feeding on corn ears,” Kirkpatrick says. “Just three damaged kernels per ear can translate into a loss of one bushel-per-acre.”

Kirkpatrick adds that greater awareness about the annual corn rootworm hatch and migration patterns of corn earworm and western bean cutworm moths can help growers minimize their impact. “This tool can help farmers make strategic decisions about better timing for pesticide applications. It can also help growers in choosing the right traited corn hybrids to meet their specific needs, such as those containing Monsanto’s Genuity corn traits which protect against insect damage and protect yields.”

Growers in the Corn Belt can sign up on the site to receive e-mail alerts from May through September to learn when these insects pose a risk in their areas. In 2011, more than 3,000 growers visited the Insect Forecast site, resulting in about 5,600 total site visits throughout the growing season.

Developed by climatologist and meteorologist Mike Sandstrom, the Insect Forecast tool analyzes moth trapping data and weather patterns to issue one, two and three-to-five day forecasts for corn earworm and western bean cutworm.  The corn rootworm hatch is updated weekly and is based on soil temperature and Growing Degree Days, which is a measure of heat accumulation determined by local temperatures.

The Insect Forecast tool is being sponsored for the third year by Monsanto and offered to farmers by its Genuity brand.

Other enhancements for 2012 include:

  • The Genuity and DeKalb brand websites will receive Insect Forecast feeds at www.genuity.com and www.asgrowanddekalb.com.
  • Forecast information will also be sent to the Genuity and DeKalb mobile web sites.
  • Farmers can also sign up for text alerts from DeKalb.

The Genuity family of corn traits available to farmers in the Corn Belt includes Genuity SmartStax RIB Complete corn blend with multiple modes of action for protecting against above and below ground insects, including full-season corn rootworm control for corn-on-corn acres and other areas of high corn rootworm pressure; Genuity VT Double PRO RIB Complete corn blend with dual modes of action for above ground insect control, including maximum corn earworm protection; and Genuity VT Triple PRO, with dual modes of action for above ground insects and a single mode of action for below ground insect protection in areas that experience light to moderate corn rootworm pressure.

Both Genuity SmartStax RIB Complete and Genuity VT Double PRO RIB Complete also offer the simplicity and convenience of a single bag option for refuge management.

Genuity VT Triple PRO is also offered in the Cotton-Growing Area, as is Genuity VT Double PRO but not as a refuge-in-the-bag product.

For more information on Genuity corn traits, farmers can contact their seed representative or visit the website.

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