When Should You Apply Pre-Emergent Herbicide?

A pre-emergent herbicide is a crucial tool when it comes to weed management program. However, it is quite tricky to time the application.

In this blog we are going to take a look at key principles to formulate a weed control strategy and what this herbicide is capable of consuming within this management program. We will also tell you when you should apply pre-emergent to various weeds.

Creating Weed Control Strategy

In case you are formulating a strategy for weed control in your property, you need to know that it is not entirely possible to get rid of the weeds with one cultural practice or application. There is nothing which can kill the weed and efficacious programs will adjust to the requirements of the property on an annual or at least seasonal basis.

Weeds of every kind have a survival strategy and you cannot eliminate it completely. These have different methods and cycles of reproduction. Seeds might lay dormant for several years and then they germinate by surviving the fire, drought, and herbicide applications. Even if you clear out the property seeds, vegetative propagules and seed can be transported easily to your property through the wind, animals, human activity, and water.

When you develop or adjust the weed control strategy, it is necessary to ask yourself a few questions given below.

• Which type of weeds would you like controlling?

• What is your goal, to eradicate, prevent, or both?

• Is there any cultural practice which is going to help in reducing the weeds?

• When it the right time to apply pre-emergent herbicide and what the weed’s life cycles?

• What plants are there on the property and whether the herbicides that you consider are labeled for those plants?

How does Pre-Emergent Herbicide Work?

If you have to get a better idea regarding how herbicide works, you need to check the 3 main principles related to this.

Pre-Emergent Herbicide Controls Germinating Weeds

As the name suggests, pre-emergent is made for weeds which haven’t yet come upon the soil. In order to get the best possible result and not waste labor or time in the future, make sure weed isn’t visible above the ground during the time of application.

The weed is going to be killed if it starts sprouting from seeds and then hits the barrier of the herbicide. The seeds might remain dormant and is not going to be harmed by the application of pre-emergent herbicide. Hence, you need a constant process. Seeds are always going to be present under the surface and this is going to germinate every season.

Annual applications need to be made for reducing infestations. Keep in mind that best pre-emergent herbicide can have an effect on the plants that you want to keep. You need to be cautious when you apply pre-emergent and seed the turf during the same season. It is necessary to seed first and thereafter, apply pre-emergent at least six weeks later in order to allow lawn establishment. If not then seed at least three months following the application of the pre-emergent.

Mix the Pre-Emergent Correctly and Apply Evenly

These herbicides should be mixed in the right manner for your spray solution to have a specific strength. Read the recommendations of the manufacturers. Make sure that you do not forget calibrate your sprayer.

You should cover the area thoroughly. Consider pre-emergent such as blanket as you will have to cover the whole area so that the weed seed is not able to germinate through it. If you spray on spot, you will not be able to accomplish anything. This is because there is much open space for weed to germinate.

The instructions by the manufacturer show how much you need to use for every 1000 sq. feet. This will help you to know how much herbicide you need to use for every gallon of water. Generally, it takes about one or two gallons of the solution to wrap up the entire area.

Pre-Emergent Herbicide should be Watered in

If you water in, it is going to activate the herbicide. This leads to a barrier below the surface. A majority of the products need 0.5 inches or rain or irrigation in twenty-one days after it is applied. In case you are applying it to a non-irrigate area, you need to apply the pre-emergent prior to when the rain is being anticipated.

What Kind of Weeds Does Pre-Emergent Herbicide Kill?

These only work on particular types of weeds. One of the most popular weeds which homeowners look forward to getting rid of crabgrass, this is a grassy weed. The herbicide works best on grassy and few broadleaf weeds. Better keep post-emergent weeds for keeping the weeds from popping up. Make sure that you kill the weeds so that they do not get a chance to pop up or else you will get to see more weeds in the following year.

You should not neglect the lawn after you have used the pre-emergent herbicide thinking that it is going to kill all weeds. It is necessary to invest in the lawn all throughout the year. A deep root system is going to product hearty grass and will give you a healthy lawn which is going to fight against weed. Best lawn practices include.

• Watering

• Seeding

• Mowing and fertilization

• Weed control

When these practices are combined with the herbicide, your lawn is going to be weed free. While purchasing the pre-emergent, it is necessary to consider the type of grass that you have in your lawn. For this, you should read the label of the herbicide to find out if it will work with the grass type. If you know what kind of grass you have on your lawn, you can narrow down the selection of pre-emergent on the basis of the weeds which are growing on your lawn.

If you are able to do it in the right manner, you pre-emergent herbicide can reduce weeds which appear on the lawn in summer or spring.