I know weed & feed does really neither great. BUT...

Is there any weed & feed type products that you can hook into a good old fashioned hose sprinkler? Versus having to spray it all over the yard manually?

Maybe a container of some sort with hose threads on both sides? If not seems like there should be dang it.

The use of a broad leaf herbicide (and many non-selective herbicides) in a water-based delivery system will contaminate the system so that herbicide residue will continue to be delivered for subsequent use. Therefore, do not do this with hoses that are not specifically reserved for the purpose to avoid the chance of accidentally damaging desirable plants, or somebody drinking from it. For similar reasons, you should have a sprayer and associated components reserved for herbicide use, and use another sprayer/sprinkler for other liquids such as fertilizer, fungicides, or insecticides (which, generally, do not contaminate equipment that has been properly cleaned).

Also, make sure any hose-based chemical application is done with a no-reverse-flow water breaker at the hose bib end so that a low-pressure incident in the feed pipe does not suck the chemical mixture back into the in-house water system which could contaminate drinking and cooking water.

These difficulties, and potential liability are probably why the product described in the OP is not more generally available. It seems that it might be possible, or even easy to adapt a hose-end sprayer that uses a canister to hold the chemical to this purpose. Some of these have garden hose threads on both the input and output that could be adapted to an in-line configuration. But it is still a bad idea.

There is also the aspect of rate of application, a sprinkler will throw much more water than a sprayer, and product dilution will vary from what is on the label. This may affect efficacy of the chemical even if rates are re-calculated correctly. One must account for both the product and its carrier in figuring how much product and water to apply. Appropriate dilutions may not be achievable.

To each their own but I don't see how this is a good idea. I see a massive over/under application of the product.

How big of an area are you covering? Any reason for not using a granular with a spreader?

quote:

Originally posted by gpbst3:
To each their own but I don't see how this is a good idea. I see a massive over/under application of the product.

How big of an area are you covering? Any reason for not using a granular with a spreader?

I dont' know... just looking down out my office window at the backyard. Looking at a few pesky crab grass spots and then I see my sprinkler in the middle of the yard on it's timer. (It's been a brutally dry summer.)

Seemed like a simple answer at the time. *shrug*

quote:

Originally posted by myrottiety:

quote:

Originally posted by gpbst3:
To each their own but I don't see how this is a good idea. I see a massive over/under application of the product.

How big of an area are you covering? Any reason for not using a granular with a spreader?

I dont' know... just looking down out my office window at the backyard. Looking at a few pesky crab grass spots and then I see my sprinkler in the middle of the yard on it's timer. (It's been a brutally dry summer.)

Seemed like a simple answer at the time. *shrug*

It can be done, but for something like you are thinking, you really need to consider back-flow prevention. Fertilizer/pesticide/herbicide or even just nasty water getting sucked back into your drinking water isn't a good idea.

I use a hose-end siphon-feed applicator for miracle-grow type fertilizer, but I don't use it for pesticide/herbicide often. ;ight doses & I don't leave it hooked up with the water turned off (and I have anti-siphon hose bibs).

It's also August in GA, if it's anything like here, the crabgrass will laugh at you. The time to kill crabgrass is when it sprouts in June or before with pre-emergent.
Weed-n-feed usually means broadleaf, but some will have some crabgrass dope as well (usually not the good stuff, so see my previous comment).

quote:

It can be done, but for something like you are thinking, you really need to consider back-flow prevention. Fertilizer/pesticide/herbicide or even just nasty water getting sucked back into your drinking water isn't a good idea.

Yet everybody has no problem dumping it on the ground to work it's way into the ground water which eventually has it end up in drinking water.