1361 articles





thumbnail image

The phrase is an old folk proverb that entered the written record gradually in the mid-1800s. The phrase has a historical agronomic basis, it’s just not relevant today. Public interest in the phrase can be filed under the category: “Perennial Folksy Questions About Corn That News Media Like to Write About”. If I had a penny for every time someone asked me about the popular Corn Belt adage “Knee-high by the Fourth of July” over the 40+ years I spent as Purdue’s Extension Corn Specialist, I would have a lot of pennies and no where to spend them in today’s economy. The news media especially love to publish folksy articles this time of year on this well-known “metric” of growing corn and have been doing so for well over one hundred years. The most rigorous tracing of the origin of the phrase (etymologist Barry Popik’s 2012 article) finds the saying[Read More…]




thumbnail image

Indiana has received quite a bit of rain in the last few months, and fields are flooded throughout the state. How can you determine if you just have a flooding injury or a seedling disease has taken hold? Standing water leads to root suffocation as roots are oxygen-deprived and CO2 builds up. Digging up a few plants in the area can help determine the issue. If the outer root tissue sloughs off and reveals the white hair-like core of the root, then there may only be a flooding injury. If the roots appear rotted, brown and mushy, then a root rot may have infected the stressed plants. Flooding also kills the nitrogen-fixing bacteria, so you can cut open the soybean nodules to see if they have lost their healthy pink color. In contrast, seedling diseases, such as Phytophthora root and stem rot, can leave the roots brown and rotted, but[Read More…]


thumbnail image

Although not a pest in all of the state, the Western bean cutworm (WBC) has been in an issue for Indiana producers for 20 years – the first recorded adult capture was documented in the Pest&Crop newsletter on July 7 2006 both in pheromone traps and black light traps, at PPAC in Wanatah, and NEPAC in Columbia City, respectively.



Pest&Crop newsletter - Department of Entomology Purdue University 901 Mitch Daniels Blvd West Lafayette, IN 47907

© 2026 Purdue University | An equal access/equal opportunity university | Copyright Complaints | Maintained by Pest&Crop newsletter

If you have trouble accessing this page because of a disability, please contact Pest&Crop newsletter at luck@purdue.edu.