[mr_pierre_boudreaux]

I posted last week and received some great info. I have ordered some pre-em with Dithiopyr which I should get by the weekend.
On Thursday I sprayed this weedkiller and by this afternoon there seemed to be more flourishing weeds than it had killed. For space allocation my yard is 180X90 with a 1360 sq ft home and 2 car garage attached. By the time I was done, the bottle was just about empty(about and inch left).
There was a lot of these clover looking weeds:


There were two different flowering weeds that seemed to be thriving also. One was white and one was yellow.




(The dead spot you see is from a concrete driveway replacement. How should I go about revamping that?)
For weed control, should I do any more spraying or let the grass and weeds fight it out?
For my plan(from last post - revised):
1) Spray for weeds - Done
2) Cut grass extremely low, bag clippings - Done
3) Loosen grass that is left with rake(should I do this if not seeding?)
4) Milorganite - Mid April
5) Weed, water and cut, treat for weeds in spots with 2,4 D

 

[high leverage]

Top picks look to be a type of oxalis.

 

[Killbuzz]

I've never had luck with Weed B Gon and clover. Celsius did the trick.

 

[mr_pierre_boudreaux]

Would it be wise to spray again with Celsius?

 

[Killbuzz]

When did you spray it last? It took about a week and a half before I started to see results.

 

[mr_pierre_boudreaux]

Past Thursday

 

[Killbuzz]

Give it time.

 

[Colonel K0rn]

Takes about 3 weeks in cooler weather to get a kill with Celsius, but when it's hot outside, it works a lot quicker. Be patient, and if they haven't died in 5 weeks, spray again.

 

[mr_pierre_boudreaux]

Update: It's been 5 weeks since I sprayed and 4 weeks since I laid down the Pre-Em. Weeds are still dominant. I only cut grass once and it is due for a cutting again. I have purchased the Milorganite but have not applied it yet.
Here is what most of the yard looks like:
https://imgur.com/a/9w765

What steps should I take next? I looked up Celcius, but it was pretty pricey...$120 on Amazon and $150 on do myown.

 

[Movingshrub]

First to address the price of Celsius, in terms of cost per application. It's an inexpensive product. However, in terms of upfront cost, yes it can be tough to accept.
https://www.lawnandpestcontrolsupply.com/products/celsius-wg-herbicide-10-oz
$106.

You have broadleaf and grass-like weeds. The weed b-gone you sprayed isn't going to touch any of the grass like weeds. It usually does a good job on broadleaf, but it just depends on the weed, in terms of whether it controls it or not. For the non-broad leaf weeds, you're going to need a different herbicide.

 

[mr_pierre_boudreaux]

Thanks for the link! So Celcius will take care of both weeds?
I currently have some 2, 4-D Amine(this stuff right here), but I have not applied it - I read some bad stuff about cancer and pets. Am I being over paranoid? I have a 1 gallon sprayer for that application. The total area of the yard is approximately 4500 sq ft.
Also, should I wait until after I spray until I lay down the milor?
Thanks in advance!

 

[Colonel K0rn]

Celsius will take care of both weeds. There are some weeds it won't get, but the majority of weeds will be controlled by Celsius. If you haven't, take a minute to familiarize yourself with the Bermuda Bible:The New Testament. It also contains information about another chemical we use, Certainty, which will take care of sedges(which are particularly nasty). Most of the stuff that you get at Lowes/HD/WalMart are cheap for a reason, they work against a broad spectrum of weeds, but the cost per application is considerably more expensive than the cost per application of the 2 aforementioned products.

The best post-emergent (PostM) is a good pre-emergent (PreM) application; that is to say, it costs you less in the long run to put down a PreM than it does to spray the weeds that germinate.

To address your 2,4-D question, nothing wrong with being cautious. Don't drink it, wash your hands with it or soak Fido with the wand. Use common sense, wear your PPE, and wear some gloves (I do because I usually spray with dye, and it gets everywhere).

Milo is OK to put down if the weather is a bit warmer. Microbial activity that breaks down the product increases when soil temps increase, so you won't see as good a bump in growth as you would if you put down a synthetic fert. Putting that fert down, along with a good herbicide should net you a better kill.

Edit: those white flowers that you see are clover, and Celsius will kill that with a low rate of application (0.057 oz/1.6g/1,000 ft²)The bottle is a 10 oz bottle. Easy to do the math, it will last you a VERY long time on low rate applications.