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Natural pesticides and weed/fertilizer products?

Posted on 3/9/21 at 11:03 am
Posted by McTTiger
Member since Apr 2018
407 posts
Posted on 3/9/21 at 11:03 am
Anybody have any experience with these? From my limited research it seems like general consensus is that they don’t really work, but hoping somebody may have some advice.

Have a 3 year old and a 10 month old that is starting to crawl around, so was looking at some different options.
Posted by Piebald Panther
Member since Aug 2020
615 posts
Posted on 3/9/21 at 11:35 am to
Natural does not mean safer. Most synthetics are just synthesized versions of the natural.

The insecticide Pyrethrin is natural and Permethrin is the synthetic. Both are safe products when you follow the label instructions. The mode of action in both is the same and have every low toxicity to humans.

Natural fertilizers smell like shite, well because they are either shite or something rotten. I've never fertilized a lawn with them, but if you look at the NPK analysis they're typically pretty low across the board.

My only use for them is to increase some bacteria growth which helps in the long run.

This post was edited on 3/9/21 at 11:38 am
Posted by 7Costanza
Member since Jan 2020
15 posts
Posted on 3/9/21 at 11:38 am to
For a decent spot weed killer, mix a gallon of Vinegar to 1 box of salt and 5-10 drops of dawn soap. It works okay if you use enough and you don't have to worry about the little guys getting into it.
Posted by Piebald Panther
Member since Aug 2020
615 posts
Posted on 3/9/21 at 11:46 am to
From Ohio State:

quote:

When rats were used in the test procedure, the LD50 value for glyphosate was 5600, and the LD50 value for acetic acid was 3310.

If we keep in mind that an LD50 value represents the amount of individual dose required to kill 50 percent of a population in the test, we realize the lower the number, the more toxic the material. When equal amounts were given orally and compared, it took less acetic acid to kill rats in the laboratory test that it did glyphosate. The acetic acid in even household vinegar was MORE toxic than Roundup!

Going one step further, in this case a comparison of rate of application is a moot point. A 1% solution of glyphosate will kill most any annual weed listed on the label, and also the majority of perennial weeds. It may take more than one application of a 20% acetic acid product to kill, at best, only a portion of the annual weeds we see in the landscape.

This discussion isn’t meant to suggest vinegar is not an acceptable herbicide. The intent is to create awareness that regardless the origination of a material – be it considered ‘natural’ or a synthetically manufactured product – if it has the ability to kill plants or insects, it is a toxin. All toxins should be handled with care, in accordance with the label and their intended purpose, and at the rate of application that has been determined to be acceptable. When done properly, both natural and synthetic herbicides can be safe and effective.
Posted by notsince98
KC, MO
Member since Oct 2012
21308 posts
Posted on 3/9/21 at 1:58 pm to
I only use natural fertilizers and my KBG/TTTF is thick enough that it naturally keeps the weeds back and I only have to pick 2-3 weeds a week by hand.

Synthetics biggest drawbacks are the damage they do to the microbial activity in the soil. As that activity dies off, the grass becomes dependent on synthetic fertilizer to do well.

Focus on healthy grass first and then worry about weeds after the grass is good to go.
Posted by notsince98
KC, MO
Member since Oct 2012
21308 posts
Posted on 3/9/21 at 2:00 pm to
I dont think anyone is using glyphosate on yard weeds. You would only use that if you want to kill everything including the grass.
Posted by McTTiger
Member since Apr 2018
407 posts
Posted on 3/9/21 at 2:17 pm to
Which products do you use?

Thank you all for the responses.
This post was edited on 3/9/21 at 2:23 pm
Posted by tilco
Spanish Fort, AL
Member since Nov 2013
14299 posts
Posted on 3/9/21 at 2:21 pm to
I’m going to try soybean meal on my centipede this year during the summer months. It has an npk of 7-2-1 I think. Gonna got it with a synthetic in April then switch to the soybean mid may.
Posted by notsince98
KC, MO
Member since Oct 2012
21308 posts
Posted on 3/9/21 at 2:24 pm to
quote:

Which products do you use?


All I use is Menard's natural fertilizer because it is 85% slow release.

I have cool season grass, though. If you have warm season grass your fertilizing needs vary quite a bit from mine.

Posted by hungryone
river parishes
Member since Sep 2010
11987 posts
Posted on 3/9/21 at 2:50 pm to
I use diatomaceous earth with great success on ants and fleas, in areas frequented by house cats (screen porch) who groom their fur continously, thus are likely candidates to ingest anything sprayed or sprinkled. It is a dry powder that kills by mechanical action (perforates the exoskeleton of anything that has a "shell"). You can dust it around liberally; it is nontoxic unless you breathe the dust directly into your lungs.
Posted by Zappas Stache
Utility Muffin Research Kitchen
Member since Apr 2009
42317 posts
Posted on 3/9/21 at 4:24 pm to
quote:

For a decent spot weed killer, mix a gallon of Vinegar to 1 box of salt and 5-10 drops of dawn soap.


It needs to be 10% vinegar which I can find 20% on amazon and mix 1 gallon with 1 gallon water in my sprayer. I also add 2 oz of orange oil as well as 2 tbls liquid dish soap and an oz of salt. It browns most weeds and bermuda/ st augustine but doesn't kill it. I use more as a way to slow the weeds down. If you do an application every 2 weeks it keeps most weeds knocked down and will eventually kill them. It doesn't work on poa which is all in my planting beds so this year I bought bags of mulch in november and laid the full bags in my beds between plants to suffocate/deny sunlight to the poa and it has works pretty well.
This post was edited on 3/9/21 at 4:26 pm
Posted by Piebald Panther
Member since Aug 2020
615 posts
Posted on 3/9/21 at 7:20 pm to
The vinegar mix suggested that I responded to is a non-selective killer like glyphosate and not handled correctly can also cause harm to humans.
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