Front mounted spray tank

[Mht]

I know all about the tall weeds. I cultivated silver queen corn a week ago. The corn was 18 inches tall and the Johnson grass was higher than the hood on the my cub. The Johnson grass was so thick it would wrap around the cultivator shanks and lift them out of the ground.

[Waif]

I know all about the tall weeds. I cultivated silver queen corn a week ago. The corn was 18 inches tall and the Johnson grass was higher than the hood on the my cub. The Johnson grass was so thick it would wrap around the cultivator shanks and lift them out of the ground.

You're up against an extra nasty there.
Long durability in the soils seed bank type seeds , and (!) rhizomes.

[Mht]

That’s for sure. Seeds can remain viable for 20 years and every time you cut a rhizome in half with tillage you’ve created two plants. Plowing the rhizomes up to the surface in the fall can help if we get lucky enough to get a good hard freeze in the winter and killing in June with roundup before seeds mature can help but no garden crops are roundup ready so you almost have to just fight the grass and not plant crops for a couple of years to get it under control. And I don’t think it will ever be possible to completely eradicate it because of the long term seed viability.

[Waif]

The downtime , labor,fuel,and crop out of production would hurt trying to eradicate seed in bank.

Letting it sprout before spraying , letting it sprout again and spraying . Well , you know....
At least if the foliage is killed it will stress the roots. I never had Johnson grass but imagine tilling would cheer up the rhizomes.

I have planted miscanthus gigantus.(sp.) for screening by using rhizomes. Not supposed to seed viably. And hasn't. I've left it to fight it's way unattended except for a couple pruned spots.
Going on five years and the rhizomes have not gone far. Or I'd dig and divide it. (By age it should be losing vigor without dividing it.)
Barely bloomed last year, so this year might tell more if it's fading.
I expected it to try to spread more.
Of course if you want it too , vs don't want it to....L.o.l..

[SamsFarm]

Field bindweed up here!

Looks like morning glory!

It has the rhizome roots...... cut the root in 4 pieces and get 4 plants!


I remember one year, with the help of my then new 6' tiller, I infected a small 1/3 acre plot. When I would cultivate that years sweet corn, each row I would have to stop to clear off the bindweed vines from the cultivators!

The next year I tilled it with the tiller, and every time I would see some sprouting in the field I tilled it again.

Before Fall, I did not see much!

In small areas I take, and after tillage when it sprouts again, I dig it up with a shovel and extract the plant and roots, then burn them!

I've read where pigs in a area with field bindweed will root it out!

[Eugene]

Story time since we are into killing weeds.

Central Iowa. Grandmother wanted morning glories to decorate the farm house flower beds. Grandfather told her not to. Grandmother planted them. For the next 30 years until they left the farm, Grandpa walked the corn rows spraying morning glories