Funded by the Illinois Soybean Association checkoff program.

Insect Management

Much Ado About Bean Leaf Beetles

In my most recent ILSoyAdvisor post, while discussing late-season scouting for insects, I mentioned bean leaf beetles. I wrote that they rarely are present in high enough numbers to warrant control action. But once again 2020 has thrown a curveball at us, and there are numerous reports in the central and northern portions of Illinois of heavy infestations of this normally minor pest. The damage can be significant in some cases, so how can a farmer decide whether a spray will be cost-effective in the current, challenging commodity environment? First, the pest Adult bean leaf beetles are around ¼-inch [...]

By |September 4, 2020|

PODCAST: Scouting for Late-Season Soybean Insects and Diseases

Jason Carr, CCA Soy Envoy and Bayer Crop Science Technology Development Representative, is on the podcast this week to discuss what soybean insects and diseases farmers should be scouting for in August. Listen to learn more. ILSoyAdvisor Podcasts · Scouting for Late-Season Soybean Insects and Diseases

By |August 19, 2020|

Bean Leaf Beetles Aren’t Only A Spring Issue

Bean Leaf Beetles … Wait, didn’t we already battle them during the spring? Yes, but this insect will have two adult generations in a single growing season. After overwintering, the BLB emerged and fed on soybean cotyledons this spring. The adult insect then laid eggs for the second generation that will feed on the 2020 pods. Soybean fields planted with an insecticide seed treatment would have had a degree of protection against spring feeding (depending on when the beetle attacked the seedling). The spring BLB—or the first generation—will typically attack an early planted field or the first field that [...]

By |August 11, 2020|

Conservation of Natural Enemies of Insect Pests

This article was originally published on the Soybean Research & Information Network, a checkoff funded website. Conservation biological control is protecting the natural enemies that are already present. Provide food, water and shelter Providing food, water, and shelter for natural enemies will encourage them to stay in the crop area to feed and reproduce. Many beneficial insects need a source of pollen or nectar Beneficial insects often need an alternate food supply in addition to the pest prey. Many natural enemies, including the adult lacewing and minute pirate bug must have a source of nectar, pollen or honeydew to [...]

By |July 25, 2020|

Stink Bugs

This article was originally published on the Soybean Research & Information Network, a checkoff funded website. In southern states, stink bugs collectively are the costliest insect pest followed by corn earworm. While traditionally considered a southern pest, the range of stink bugs is moving north, and westward as average yearly temperatures continue to increase. Stink bugs get their name from the foul odor they produce as part of their defense mechanism. Stink bugs are attracted to soybean plants in the bloom to early pod-fill stages. They primarily attack soybean pods and seeds, using their piercing-sucking mouthparts that act like [...]

By |July 15, 2020|

Bean Leaf Beetle – Scouting and Management

This article was originally published on the Soybean Research & Information Network, a checkoff funded website. The bean leaf beetle (BLB) (Cerotoma trifurcata) is a common soybean pest that feeds on cotyledons, leaves, and pods. The trend to milder winters in the past decade is favoring the greater survival of overwintering adults. Growers are also planting soybeans earlier than ever and the combination of the two is increasing the potential for early season damage. Early planted soybeans and especially the first fields to emerge in an area is where seedling feeding injury by overwintering beetles is most likely to [...]

By |July 5, 2020|

What’s Bugging Your Soybeans?

As the growing season gets underway, there are several insect pests that could be bugging your soybeans. While there is definitely a mixed bag of defoliators and pod feeders as you scout throughout the season, here are a few you might come across. Bean Leaf Beetles. Adults overwinter near bean fields in woodlots or along fence rows. They become active in the spring when temperatures rise above 50⁰ and can be found feeding on soybean foliage soon after emergence. Adults lay eggs in the soil and larvae will feed on root systems for a few weeks before pupating. Two [...]

By |June 23, 2020|

Managing Bean Leaf Beetles in Soybeans

Bean leaf beetles are among the first insect pests we see each spring. The adults leave their overwintering sites when temperatures begin to warm up and look for beans and other legumes to feed on. In many cases, the first bean fields to emerge act as a “magnet” for bean leaf beetles, resulting in damage and conspicuous populations of the insects. While the defoliation associated with this injury is rarely more than a cosmetic issue, this species has the potential to vector bean pod mottle virus early in the season and cause direct injury to pods during seed fill. [...]

By |May 11, 2020|

What is IPM?

In modern production agriculture, it’s important that we look at the big picture of how to manage yield-robbing pests. It’s human nature to gravitate toward the practices that are either cheapest or the easiest. However, in the long run these selected practices may end up costing more. We must evaluate the short- and long-term impact of the decisions we make. IPM, or integrated pest management, consists of a host of tools that are available to properly protect a crop. Integrated Pest Management: A sustainable approach that combines the use of prevention, avoidance, monitoring and suppression strategies in a way [...]

By |April 11, 2020|
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