If you have been pestered by garden weeds that have spoilt the beauty of your garden, then you need weed killers to eliminate them. The garden weeds are not easy to eliminate otherwise they could have just been rooted out and the problem would not have been there anymore. The first thing that you need to do is to understand the nature of the problem and where are the garden weeds growing.
The understanding of where the garden weeds are growing and the time of the year that it is (in certain cases) matters a lot in the choice of weed killers that you would use in eliminating the issue at hand. Let us first understand the type of weed killers that there are which can be used to eliminate garden weeds. These weed killers differ in the manner that they affect and eliminate garden weed. There are the weed killers which externally are absorbed by the garden weeds and in the process the degeneration and the eradication starts. Then there are the weed killers which are absorbed in the soil and they find their way into the garden weeds via the nourishment that it extracts from the soil using its roots. It is then that these weed killer show their effect and the garden weeds are eliminated altogether. Finally there is the weed killer which is not restricted to poisoning the weeds. All the vegetation that absorbs it is eradicated. This is the weed killer that is used especially when a ground needs to be cleared of the remnants of garden weeds before the plantation of new seeds.
Some of the weed killers are sprayed on top of the garden weeds, while the others which are in granulated form are sprinkled on the ground all across the place where the garden seeds are. The latter get absorbed in the soil and eliminate the garden weeds from there and the former are absorbed directly and the garden weeds get eliminated thus. So, if you have a lot of rose plants for example and there are garden weeds growing amidst them, then you can use the spray version of weed killers that kill the garden weeds directly by selective spraying on the garden weeds only. This method of elimination of garden weeds is effective in a small area only and for a large area, it is not practically feasible.
However the same is not applicable for weeds growing in grass. Here if you select a spray for elimination of the garden weeds only, chances are that patches of grass around the garden weeds get eliminated and wilted as well. Therefore here is when you can use the weed killers that help you eliminate the garden weeds from inside having entered them via their roots. Use a lawn mower to keep the growth of garden weeds contained till the weed killer takes effect.Thus we see how the place where the garden weeds are growing matters in the choice of weed killer. Always read the label to ensure that you are using the right product to suit your needs.