Get rid of weeds and dandelions in a yard?

Here's a recipe for weed killer:

2 cups white vinegar

¼ cup salt

Squirt of dawn

Mix in a spray bottle. If you have a larger area, you can mix in a garden sprayer with larger quantities. Use when it will not be raining for a few hours so that it isn’t washed away.

If you don't want surrounding grass to be killed you can either apply with a dropper or you will have to pull them.

I usually put Scotts Weed n Feed on my lawn in the spring and in the fall. I also use an old fashioned dandelion puller which works better than the herbicide. True Value and Amazon have the Grandpa's Dandelion Puller.

I would try the vinegar and Dawn method (above). You can also use a trowel to dig up the weeds.

Weed & Feed is great!

For paver/stone/gravel patios

I use one cup of vinegar, one cup of salt to two gallons water in a garden sprayer. Saturate the weeds till dripping. Do not use on lawn or in garden. Will kill everything.

Use combination weed and feed fertilizers for the best results on lawns

Feeding the grass and controlling weeds are two components of homeowner strategy for having a great looking lawn. Dandelions may be pretty yellow flowers, but they can easily take over an entire lawn. These plants have long tap roots that make pulling them up or digging them out almost impossible. The key is to use a weed killer that enters through the leaves and circulates through the entire plant to the root. Application of a combination product to kill weeds and fertilize the lawn results in grass that is thick, dense, and healthy.

I like to use Specrtacide Weed and Feed in a hose end sprayer. No mixing, no mess. I have tried different brands and found Spectracide Weed and Feed works the best for me.

Hello trying to eliminate weeds is an ongoing process that needs constant attention. The following points might be helpful to review. Hope this helps

Management

Cultural control in ornamental beds

Prevent going to seed; hand pulls easily. Do not compost plants with seed heads.

In Lawns

• Cultural Practices
• Maintain healthy, dense turf that can compete and prevent weed establishment.
• Mechanical Management
• Hand pulling or using an appropriate weeding tool are the primary means of mechanical weed control in lawns. This is a viable option at the beginning of an infestation and on young weeds. Hand pulling when the soil is moist makes the task easier. Weeds with tap roots like dandelions or have a basal rosette (leaves clustered close to the ground) like plantain are easier to pull than weeds such as Bermudagrass (wiregrass) or creeping Charlie (ground ivy) that spread with stolons or creeping stems that root along the ground.
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• Chemical Prevention/Treatment in Lawns
• Herbicides should be used as a last resort because of the potential risks to people, animals, and the environment. Be aware of these precautions first.
• Use a granular (apply with a spreader), selective, preemergent herbicide. Apply a preemergent without nitrogen fertilizer. Look for the active ingredient: Prodiamine (Barricade) or other preemergents labeled for crabgrass control. Apply in early spring (March) before it germinates. It germinates earlier than crabgrass so to prevent J. stiltgrass the preemergent needs to be applied a couple of weeks earlier than for crabgrass prevention.
• Rainfall or irrigation is required to dissolve the herbicide which is then absorbed into the upper portion of the soil and forms a barrier which kills weed seedlings. Preemergent grass herbicides have residual activity that lasts for several weeks after application. High temperatures and rainfall will decrease the length of time they remain at sufficient concentration to be effective.
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• Tips for application:
If planning soil disturbance, such as aeration, do it before application.Apply prior to seed germination which begins, in early spring a couple of weeks before crabgrass seeds germinate.Water after application, according to label.A second application may be possible, usually 6-8 weeks later (see product label).Consult label for specific waiting period between application and overseeding.If Japanese stiltgrass is present in your lawn a postemergent herbicide labeled to control annual grass weeds like crabgrass can be used to spot treat young weeds. Herbicides do not work well on mature plants. Look for the active ingredient Fenoxaprop. https://extension.umd.edu/hgic/topics/lawn-herbicides

Vinegar with a dropper works well

You could use this home made spray, just be sure to spray only on the weeds you want gone.

https://countrylivinginacariboovalley.com/homemade-poison-ivy-and-weed-killer-that-really-works/

I also use vinegar with a dropper. Easier to get on the weed and not on any surrounding plants

For spot treating I just use plain white vinegar and a turkey baster from the dollar store. If applied in bright sunlight they die pretty quickly, then dig out to get the roots. I perform "weed patrol" for 10 or 15 minutes twice a day while playing with the pets. Keeps it all in control without sacrificing every Saturday morning to weed.

The vinegar you’d need for this is horticultural and it would take several applications to work. Salt will kill everything and make your soil barren for a long time. Best bet is to pull them, getting the entire root.