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by Delmarva Keith
Mon Mar 18, 2019 8:09 am
Forum: Soil Fertility
Topic: Liquid Aerification Snake Oil
Replies: 59
Views: 2063

Re: Liquid Aerification Snake Oil

I have to give another shout out to g-man for the research he conducted on this which was what got me interested in it, what seems like long ago. I also appreciate the perspectives shared by everyone who is contributing info without an axe to grind, for or against. It’s ok to question someone’s moti...
by Delmarva Keith
Sun Mar 17, 2019 10:53 am
Forum: Soil Fertility
Topic: Liquid Aerification Snake Oil
Replies: 59
Views: 2063

Re: Liquid Aerification Snake Oil

FWIW, my understanding is that the KOH expands (certain types) of clay particles non-uniformly. In other words, the particles change from nice uniform flat overlapping and interlocking to highly irregularly surfaced particles with little expanded “nubbins” all over them. This would indeed increase ...
by Delmarva Keith
Sun Mar 17, 2019 9:40 am
Forum: Soil Fertility
Topic: Liquid Aerification Snake Oil
Replies: 59
Views: 2063

Re: Liquid Aerification Snake Oil

FWIW, my understanding is that the KOH expands (certain types) of clay particles non-uniformly. In other words, the particles change from nice uniform flat overlapping and interlocking to highly irregularly surfaced particles with little expanded “nubbins” all over them. This would indeed increase ...
by Delmarva Keith
Sun Mar 17, 2019 9:35 am
Forum: Landscaping
Topic: Options for keeping mulch in place/Black stones
Replies: 5
Views: 401

Re: Options for keeping mulch in place/Black stones

I’m switching this season from mulch to dense ground covers in some larger (approx 2,000 total sq ft) “problematic” beds.

Irish Moss, Herniaria Glabra and Ajuga. I’ve been warned about the Ajuga. Will see how it goes.
by Delmarva Keith
Sun Mar 17, 2019 8:58 am
Forum: Soil Fertility
Topic: Liquid Aerification Snake Oil
Replies: 59
Views: 2063

Re: Liquid Aerification Snake Oil

FWIW, my understanding is that the KOH expands (certain types) of clay particles non-uniformly. In other words, the particles change from nice uniform flat overlapping and interlocking to highly irregularly surfaced particles with little expanded “nubbins” all over them. This would indeed increase t...
by Delmarva Keith
Sat Mar 16, 2019 1:57 pm
Forum: Soil Fertility
Topic: Ferrous Ammonium Sulfate | Liquid Iron for Lawns
Replies: 216
Views: 21128

Re: Ferrous Ammonium Sulfate | Liquid Iron for Lawns

I mixed up and applied my first batch of FAS/AS last week and was surprised to see the iron oxidize in the tank before my eyes and the solution go from pale blue green to orange. Is this the standard outcome or do I need to further acidify the AS solution before adding my iron? I don’t know if it’s...
by Delmarva Keith
Thu Mar 14, 2019 9:45 am
Forum: Irrigation
Topic: French drain
Replies: 3
Views: 149

Re: French drain

As Ecks from Tex says, first line of defense is positive slope away from house for at least 10’ from house. If water table is still too high, a french drain 18” in the ground likely won’t do much. French drain needs to be at footer depth, along side the footer so water pressure at wall / footer junc...
by Delmarva Keith
Thu Mar 14, 2019 9:22 am
Forum: Cool Season Lawns
Topic: Spring/Summer plan for recently Grub infested yard
Replies: 18
Views: 620

Re: Spring/Summer plan for recently Grub infested yard

Would anyone recommend putting down dylox and imidacloprid at the same to get curative and preventative measures, for sod webworm,cinch bugs and grub? Old big grubs coming up to feed and then pupate can be zapped with Dylox. New tiny grubs after emergence and egg lay can be zapped with imidaclopari...
by Delmarva Keith
Thu Mar 14, 2019 8:46 am
Forum: Cool Season Lawns
Topic: Fungicide program/plan
Replies: 13
Views: 448

Re: Fungicide program/plan

I agree with MassHole , but aside from the timing, the rotation of those three fungicides is what I use. I mix azoxy with propi for the first two apps, 28 days apart and then rotate to the T-methyl. Repeat. Seems to work. It’s expensive. For when to start / stop, the Syngenta and Cornell forecast ma...
by Delmarva Keith
Wed Mar 06, 2019 8:27 am
Forum: Equipment & Tools
Topic: Spreading sand with a fertilizer spreader
Replies: 23
Views: 804

Re: Spreading sand with a fertilizer spreader

My spreader has been a wheelbarrow, shovel and a 3’ landscaping rake. Has never clogged or failed. This year I upgraded the wheelbarrow to a 4 wheeled towed dump cart. Saves the back a little and also never clogs or fails. :mrgreen: Spreading sand in a spreader needs bone dry sand. I’ve done it and ...
by Delmarva Keith
Wed Mar 06, 2019 8:16 am
Forum: Equipment & Tools
Topic: Agri-fab Tow behind plug aerator
Replies: 5
Views: 138

Re: Agri-fab Tow behind plug aerator

It might depend on your soil composition but a tow behind core aerator with a couple cement blocks or sand bags on it when the soil is moist does the job. You’ll have to do multiple passes to get enough holes / sq ft, so production is very low. Doing your own lawn once or twice a year (I’d recommend...
by Delmarva Keith
Wed Mar 06, 2019 7:57 am
Forum: Irrigation
Topic: Tips for Hiring a Sprinkler Installer
Replies: 11
Views: 634

Re: Tips for Hiring a Sprinkler Installer

Some basic questions that come to mind that I would ask:

What is the flow demand of each zone?
What is the well pump output?
What is the well yield?

Anyone who can’t answer these questions in terms of GPM at a suitable dynamic pressure should be sent on his way.
by Delmarva Keith
Wed Mar 06, 2019 7:43 am
Forum: Cool Season Lawns
Topic: Dormant Seeding
Replies: 21
Views: 615

Re: Dormant Seeding

Powhatan wrote:
Wed Mar 06, 2019 7:35 am
Delmarva Keith wrote:
Wed Mar 06, 2019 7:29 am
There’s a research paper out there somewhere that found February was a good month for Spring seeding.
Maybe this one K-State Dormant Lawn Seeding
Looks like it — your google foo is strong :mrgreen:
by Delmarva Keith
Wed Mar 06, 2019 7:39 am
Forum: Warm Season Lawns
Topic: Prevention
Replies: 4
Views: 155

Re: Prevention

One approach is to use the Syngenta pest outlooks and spray when forecast risk of any diseases your grass type is susceptible to is high. Manage water to try to reduce the risks under your control, etc. In theory at least, spraying only when forecast risk is high means less disease and less wasted a...
by Delmarva Keith
Wed Mar 06, 2019 7:29 am
Forum: Cool Season Lawns
Topic: Dormant Seeding
Replies: 21
Views: 615

Re: Dormant Seeding

I think it comes down to how well established the new seedlings are when Summer heat increases photorespiration and decreases carb production. Around me, any form of Spring seeding or dormant seeding is toast by around mid-July. In your climate, my guess is you got the new turf off to a strong enoug...
by Delmarva Keith
Sat Mar 02, 2019 8:04 pm
Forum: Warm Season Lawns
Topic: Surfactant Selection
Replies: 40
Views: 1779

Re: Surfactant Selection

Movingshrub wrote:
Sat Mar 02, 2019 2:57 pm
. . . knowing that the Bermuda will likely grow out just fine.
True that. :nod: :lol:
by Delmarva Keith
Sat Mar 02, 2019 5:49 am
Forum: Warm Season Lawns
Topic: Surfactant Selection
Replies: 40
Views: 1779

Re: Surfactant Selection

Suburban Jungle Life+1. I am of the mindset that AMS is cheap. I want max uptake of herbicide AI. I don't want to have to spray again, and I don't want to wound the plant; I want it dead. I don't know of any particular application where adding nitrogen hurts uptake. However, pH can have an impact w...
by Delmarva Keith
Sat Mar 02, 2019 5:40 am
Forum: Warm Season Lawns
Topic: Surfactant Selection
Replies: 40
Views: 1779

Re: Surfactant Selection

I use 2.5oz dry AMS per gal. With common recommendations up to 17lbs/100gal, that's 2.72oz/1gal. The sulfate in the AMS binds with cationic minerals in the spray water and the ammonium can bind with the herbicides (weak-acid herbicides). Some plants contain Ca on their leaf surfaces which can bind ...
by Delmarva Keith
Sat Mar 02, 2019 5:37 am
Forum: Warm Season Lawns
Topic: Surfactant Selection
Replies: 40
Views: 1779

Re: Surfactant Selection

SCGrassMan wrote:
Fri Mar 01, 2019 8:05 am
Delmarva Keith wrote:
Fri Mar 01, 2019 7:01 am
2 oz (by weight) per gal.
Just curious how you arrived at that figure - that seems like a lot
Works out to about 5 and a half pounds AMS per acre. That’s not a lot. Just a tiny pinch of AMS really ;)

Why does that seem to be a lot?
by Delmarva Keith
Fri Mar 01, 2019 7:01 am
Forum: Warm Season Lawns
Topic: Surfactant Selection
Replies: 40
Views: 1779

Re: Surfactant Selection

2 oz (by weight) per gal.