Crab-grass is actually the common name for Digitaria is characterized by long finger-shaped clusters of flowers arranged in branches. Often referred to as turf pests and are very difficult to get rid of, once they start invading the lawn. Before discussing the best way to kill crab-grass, it is important to shed some light on the life cycle of this annual herb, as this will help you make the right measures at the right time. The seeds of crab-grass usually germinate in spring or late winter, as the soil temperature reaches about 55 degrees Fahrenheit. They produce seeds from mid-summer to fall and then the plants die from fall frosts. Now, let’s look at some effective ways to kill crab-grass.
Get Rid of Crab-grass
The best way to kill crab-grass is to apply a pre-emergent herbicide. As the name implies, this type of herbicide prevents the occurrence of weeds, ie avoid seedling germination. Therefore, it is important to apply pre-emergence of herbicides before germination. The timing of crab-grass germination usually coincides with the blooming of the lilac bushes.
Pre-emergent herbicides are available in granular and liquid and form a protective layer on the surface of your lawn. This protective layer prevents crab-grass seed germination. Do not aerate the soil after the application of pre-emergent herbicides. However, you can water the lawn, and irrigation help in the activation of these herbicides. Sometimes, a new application of these pre-emergent herbicides may be necessary, since all crab-grass seedlings do not germinate at the same time.
In addition to the pre-emergent herbicides, post-emergent herbicides are also available as they can kill this poor unwanted grass after germination. But it has been observed that they are primarily effective in destroying a young crab-grass plants, which are very difficult to distinguish from grass. As the excessive use of chemicals is not very safe for human beings and pets, you can also consider the option to kill crabgrass organically. An effective organic pre-emergent herbicide is corn gluten, which not only inhibits the germination of crabgrass, but also increases soil fertility.
To keep the lawn free of crab-grass, remember not to leave gaps in your lawn. A lawn of full thickness will help getting rid of crabgrass leaving no room for growth. In addition, this keeps the grass at a fixed height, that is ideal for cutting different species regularly. Mowing at regular intervals will help prevent flowering and seeding crabgrass. Regarding irrigation, water the lawn deeply but infrequently. Crab-grass is shallow poor grass. Moreover, deep watering of your lawn will cause you a benefit by stimulating the roots to grow deeper into the soil. Instead of applying fertilizer in the spring, you should do in the fall, as the plant of crab-grass is killed by hard frost of autumn.
If the grass is not populated by crab-grass, then you can also practice weeding occasionally, as sometimes, hand pulling crab-grass can be effective in eliminating this weed before it reaches the opportunity to produce seeds. While you are applying of different types of herbicides, it is important to read and follow the instructions mentioned on the label. These instructions will give you a correct idea about the time of application, and the precautions to be taken to get rid of crab-grass without adverse effects. Therefore, following some simple tips lawn care with judicious use of herbicides, can make the lawn more attractive and weed free.