My sweet corn is tall and healthy looking and tasseling but has absolutely no sign of ears.
This article will help you identify the problem:
I have +/- 4000 Sq ft sweet corn patch that I roto till between rows and hoe in the rows. Any problems with broadcasting treflan post corn emergence and tilling/ hoeing weeds that came up with the corn? Intent is to eliminate more than 2 tiil/ hoe cycles.
It can help, but I would highly advise planting legume crops between season. This will usually outcompete weeds, and provide aeration for the soil so that you have to till less. They will always remain shorter than the corn, so there is little chance of this outcompeting corn.
This is very good permaculture practice that will eliminate the need for pre-emergents, and nitrogen supplementation.
I do not see much issue with broadcasting a pre-emergent, but there are a few ways to avoid this all together.
Ive always has trouble growing sweetcorn. What kind of fertilisers should I use is miracle grow a good thing to use? I've noticed something growing on the stalk other then corn like dirt.
My sweet corn grows and produces well with compost enriched soil and a complete, mineralized, organic fertilizer.
I use Agricola's 4-8-4:
or something like this is next best:
Your corn appears to be suffering from a blight. This can be treated in a number of ways, but overwatering will be the main cause. Soil should be dry, fully, down to about 2 or 3 inches before watering again. Most of the time, they won't require much extra water.
This article will give you more information: https://www.gardeningknowhow.com/edible/vegetables/corn/corn-seedlings-with-blight.htm
This article will help you to grow corn: https://www.gardeningknowhow.com/edible/vegetables/corn/how-to-grow-corn.htm
my corn pollen is white, will it turn yellow? should I hand pollinate now or wait till it turns yellow? firstname.lastname@example.org
It is not necessary to hand pollinate corn. That looks to have already spent its pollen awhile ago, and the flowers are now dying off, as usual.
This article will help you to care for sweet corn: https://www.gardeningknowhow.com/edible/vegetables/corn/grow-sweet-corn.htm
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?
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:
I have been growing sweetcorn for many years. In my patch this year there are two stalks that are deformed. This happened within the last week. These particular stalks are about four feet tall. The top five leaves have been gathered together and it looks like they have been twisted to hold them in position in a peak. At the twist there looks like there is some damage from some insect. I carefully took the twist apart and found nothing in the first stalk. In the second one there was a very, very tiny spider. I doubt that this spider could have taken full grown corn leaves, pulled them to a peak, and then twisted them together. I have never seen this in my sweetcorn over the last 30 years. Do you have any thoughts? Thank you
Unfortunately, your photo did not come through. I am unable to assess the damage.
One thing that does come to mind is the leafroller.
Here is an article for more information: