Prevent Back-to-Back Years of Japanese Beetle Damage

Categories: GROWING, SOYBEANS
Share:

Japanese beetles swept across southern Iowa and northern Missouri this year, clipping silks and damaging leaf tissue and pods on soybean plants. By chewing on the tissue between leaf veins, this insect can reduce yields and leave soybean fields full of lacey leaves.

Golden Harvest agronomists presenting at the Slater, Iowa, Grow More™ Experience site said Japanese beetles have been a common issue for many farms this year. They noted that farmers dealing with Japanese beetle damage this summer should get ahead of the issue in 2018 by following these 2 management steps:

  1. Scout soybean fields often. Japanese beetles will primarily feed on the upper leaves, so check the top leaves for their presence or look for a cut-out leaf appearance. While damage will primarily be on the upper leaves, evaluate the entire canopy for defoliation to determine the extent of the damage.
  2. Prepare a plan for next year. If beetle damage has removed 30% of the leaf area before pod set or 20% or more of the leaf area after pod set, farmers should plan to use a foliar insecticide to knock down further damage before yield loss occurs.


Contact your Golden Harvest Seed Advisor with questions or for additional agronomic insights.

All photos are the property of Syngenta unless otherwise noted.

​​​​​​​Syngenta hereby disclaims liability for third-party websites.


SIGN UP FOR UPDATES FROM GOLDEN HARVEST

Name is required
Please enter a valid email address
Please enter a valid zip code
Sign Up

Your submission has been received, thanks!

X

You are viewing from

Thank you for visiting the Golden Harvest website. We understand how important it is for you to find agronomic and product information pertinent to your local area. Please enter your zip code or select your area below to ensure you are seeing the information that matters most to you.
Learn more about regions >

CHANGE BY ZIP CODE OR SELECT YOUR REGION

OR
We’re sorry. Golden Harvest is not available in this area. Please try another zip code or contact a Golden Harvest Seed Advisor for more information.

Is this page helpful to you?

How can we improve
this page? (optional)

Can you tell us your
role in agriculture? (optional)

Thanks for the feedback.

We appreciate your participation