Sweetcorn Pests

Question

Hi, as shown in the photos, the bottom of my leaves/stem are turning yellow. I think it’s some sort of insect causing this. Any ideas? How should I control it?

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Answer 1

This looks more like a saturated soil issue. Wet soils that do not get a chance to dry out will promote root rot, which is what this appears to be the start of.

If you have any control over watering, make sure to let it dry out, thoroughly, down to about 3 inches or so between watering.

Here is an article that will help you to grow corn:

https://www.gardeningknowhow.com/edible/vegetables/corn/how-to-grow-corn.htm