I get a progression of different types of weeds throughout the year starting with crabgrass & dandelions and culminating in clover and some other weird stuff. Believe it or not the later stuuf is worse and is more agressive.
I’ve approximately 7,500 square feet that I need to deal with and since I only get to it on the weekends, if something comes up and I miss a week I am doomed. Also now most of the trees will be in their 4th and 5th years so I will need to spend more time with them than weeding.
So how much scrap cardboard do ya figure? And… when do I start collecting?
Lots of pre herbicides are available for apple and peach, but I only have experience with a few of them. Many may be labeled for “farm use only.” Most are only available in a size that will take many years to use. Surflan is the exception and is available in a small size. Have only seen Simizine in 2.5 gal size, but its reasonable - around $80. A mix of Simizine and Surflan is common, Simizine is more active on broadleaf weeds and Surflan is more active on grass. The rate is around 2 Qt/acre. Both are labeled in my state for blueberry, and blackberry also.
Alion and Sinbar last longer, but cost more. A 32 oz jug of Alion is over $300, but it only takes around 3 oz/acre. A 5 pound bag of Sinbar cost around $300, with a rate of around 1 pound/acre
Many pre have a long PHI , so be sure to check label and also verify the proper rate. I believe Simizine is 150 days or more! I posted the rates above from memory and they may not be correct… .