A vacant lot full of weeds that I have to keep cutting down
What kind of weed killer do you recommend to kill weeds on a vacant lot so that I do not have to travel 1 hour & rent a machine about every few weeks to cut them down. I am a senior citizen so this is not something I can keep up with very easily, cost or health wise.
Can you tell me what type of weeds you have--soft stems or woody stems?
There are various levels of herbicides you could use for this purpose. Some are so harsh they would leave the ground sterilized for about a year. You might want to steer away from them because they tend to kill other plants downstream.
If I just needed a couple month's break from the mowing I would probably use something labeled to control weeds for 4 - 6 months like Bayer's Durazone: https://www.bayeradvanced.com/find-a-product/weed-grass-brush-control/durazone-weed-grass-killer