If you are looking to have a lush green and gorgeous lawn, you need patience, perseverance and the tricks to eradicating weeds. When it comes to controlling weed in the garden, herbicide is the key component. For the effective control of weeds, people use post-emergent herbicide and the pre-emergent herbicide. The names of the herbicides describe the time when they are used in order to kill the weeds. The former is used when the weeds have already emerged on the farms from the soil while the latter is used to control weeds prior to the sprouting of weeds from the soil. Post-emergents can actively decimate the weeds that have emerged from the soil.
What kind of weeds can post emergent herbicide tackle?
Post-emergent herbicide tackles annual broadleaf weeds and also the perennial weeds. Some of the herbicides may even control the grassy weeds. To control the existent weeds in your lawn, you may choose this category of herbicide. It is best meant for spot-treating the lone offenders. When you use post-emergent herbicide, the actively growing weeds die off easily. They tend to become less of eye-sore for you and indeed repeat application is not needed for young weeds. But, mature weeds need repeated application. You should inspect your lawn from time to time in order to find the newly germinated weeds requiring frequent treatment.
Timing for the post emergent herbicide
If you wish to eliminate weeds from your lawn, you need to use the herbicide at the perfect moment. Timing is a critical factor here when you use herbicide. It is true that this type of herbicide can kill weeds irrespective of their growth cycle but it is best to use it when the weeds are young. In short, spray the herbicide when the weeds are actively young and are in their growth phase. To gauge the right timing for the use of herbicide, you can also use bioindicators. Bioindicators are the plants that may be grown in the lawn to suggest the right timing for the use of herbicide. Indeed their growth process signals the apt time for spraying the herbicide. For example, in the northern climate, the growth of forsythia determines the crabgrass application. The application of the herbicide can be based on the calendar as well. It is seen that to get the best results from herbicide, one must buy herbicide or weed control product combining both post-emergent and pre-emergent herbicide.
Timing is everything
You may use post-emergent at the time of fall just to control the difficult and perennial weeds. An effective weed control needs constant effort from the lawn owner. There are various reasons for choosing fall and spring season for using the herbicide:
You have to understand the lifecycle of perennial weeds if you wish to eradicate them. When you use the herbicide in the spring season, you have the advantage of eliminating the weeds before they can build up waxy and thick surface. If waxy coating develops over the leaves, the weed control herbicide will not be able to penetrate the roots and kill the weeds. Thus, it will regrow. So, it will be right to use the herbicide during the falls when the weeds use their own sugars for survival through the winters. The herbicide will move down to the roots and kill the weed.
You also need to avoid mowing the weeds just after the application of the herbicide. Give time to the herbicide so that it moves down to the roots. For a successful weed removal, you need to make sure you do not mow too quickly.
The season is not very hot and not too cold. Thus the plants are not dormant and easily move the chemicals down to the roots. If it is too hot, you run the risk of volatization of herbicide.
Should you choose granular or liquid herbicide?
When compared to the granular products, the liquid products are much more effective. Liquid can be quickly absorbed by the leaf tissue and thus moves through the plants rapidly.
It is important to learn the exact way of using the herbicide since any negligence from your side can cause damage to the lawn and your property. Read the label of the herbicide minutely to learn the ways of using it.