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Fertilizer or liquid weed treatment. Which to do first

1.2K views 16 replies 4 participants last post by  Jayson  
#1 ·
Hello everyone. I scarified my lawn, overseeded and applied starter fertilizer at time of seeding. It's been a little over 4 weeks and the lawn was mowed three times. I forgot to spray tenacity or something similar at time of seeding so I have a well-established lawn so far after 4 weeks but plenty of weeds throughout. I have Anderson's fertilizer including the 16-4-8 PGF. I also have speed zone and T-Zone liquid herbicide. Wanted to ask what I should do first. Put down some of the PGF 16-4-8. Or spray liquid herbicide to kill off weeds? I've heard both ways. One says to fertilize first then weed control. Others say it does not matter. Any thoughts would be greatly appreciated. Thanks again
 
#2 ·
Fertilize now. After a month the yound grass is hungry. something around 1/3-1/2# nitrogen of the 16-4-8 that you have should be close.

Wait another month before spraying Tzone on it. Normally you want to give the young grass as much time as possible before hitting it with herbicides. Spraying Tzone now might be enough to stunt or kill it. Weeds are easy enough to kill that getting healthy grass down first is the priority.
 
#8 ·
Not sure of the HOC. One of the second highest adjustments on my mower. On the third mow I did go a little lower a day before I fertilized. Other than that I will increase the height for the next few mows. The pictures don't show but I'm concerned about all the weeds throughout. Now I have these little what I think is maple tree saplings growing all over. Any advice on when I can treat for weeds would be appreciated. Coming up on summer here in Northeast Ohio and I'm trying establish the turf as long as I can but I'm not sure when I could start treating weeds. Thanks again everyone for all the input and valuable information that has helped me along the way.
 
#12 ·
Ok. There's a bunch... Fertilized for the first time yesterday since scarifying and overseeding about 5 weeks ago. I put down PGF complete 16-4-8. Then today I put some humichar down. We're supposed to get a couple days of rain hopefully not too heavy. I'm going to leave it be now for a while. I'll try to hand pull as many weeds as I can but every day it gets a little worse. Now some clover. Since I was new to the lawn care procedures and learning along the way I'm kicking myself in the butt for not putting down something like tenacity at the time of seeding. Live and learn I guess. Not sure how I should proceed from here. I purchased the andersons lawn Care seasonal bundle. Haven't used any of it yet. Would it be okay to treat for weeds in early fall? Before I put down some fall fertilizer? Or should I just completely wait until next year. Then I will be able to apply the andersons crabgrass control fertilizer in early spring then the andersons weed and feed after that in late spring. I also have a pump sprayer...speed zone and T-Zone. Again any suggestions would really help and be appreciated.
 
#13 ·
you're in a good place and on the right track. Keep up with what you're doing. Use the Tzone for spot spraying weeds and keep up on them starting now. Cut it weekly without exceeding the 1/3rd rule. You probably don't need to seed in the fall so if you don't have pre-emergent down I'd put down a 3-month application now and another in august. that will carry you through the end of the year for fall emerging weeds.
 
#14 ·
Okay thank you. As far as the pre-emergent... The T-Zone is a post emergent. As well as the speed zone I have. The only pre-emergent I have is the Anderson's crabgrass control fertilizer from the bundle pack. I just fertilized with the PGF 16-4-8 yesterday. I'm pretty sure I wouldn't be able to put Anderson's crabgrass fertilizer because it's a fertilizer and weed control. If I'm understanding correctly this would be too much nitrogen/fertilizer too quickly. Correct me if I'm wrong but you are referring to a pre-emergent liquid with no fertilizer in it? Or is there a granular pre-emergent with no nutrients just a herbicide? I also have a bottle of the tenacity that I have not used yet. Thanks again for any advice.