This is usually in the spring and fall, but can vary depending on the climate. The best way to find out is to check the weed’s leaves. If they’re green and actively growing, that’s when you want to spray.

Roundup is a broad-spectrum herbicide, which means it will kill most plants. This includes both weeds and desirable plants, so be careful where you spray it. It’s best to use Roundup on weeds that are growing in areas where you don’t want any plants to grow, such as cracks in sidewalks or driveways.

Roundup is most effective when used as a spot treatment on individual weeds. It’s not as effective as a general weed killer, because it will only kill the plants that it comes in contact with. So if you have a large area that’s full of weeds, it’s best to treat each weed individually.

Roundup is a glyphosate-based herbicide, which means it kills plants by inhibiting the production of amino acids. This may sound like a complicated process, but it’s actually quite simple. glyphosate works by binding to an enzyme called EPSP synthase, which is found in plants. EPSP synthase is responsible for the production of amino acids, which are the building blocks of proteins.

without amino acids, plants can’t produce proteins, and they eventually die. glyphosate-based herbicides are effective against most plants, but there are a few species that have developed resistance to glyphosate. These include certain types of grasses, sedges, and broadleaf weeds.

Roundup is a popular herbicide because it’s relatively inexpensive and it’s easy to use. It’s also effective against a wide range of weeds. But it’s important to remember that Roundup will kill any plant it comes in contact with, so be careful where you spray it.

me of day to spray is early morning or late afternoon, when the sun isn’t as strong. You should also avoid spraying on windy days.

Roundup should be applied to dry leaves and should be applied to the leaves, not the stem. You should also avoid spraying when it’s going to rain within the next 24 hours.