A common point of confusion
If you are starting out in lawn care, it can be really confusing to understand how to mix herbicide. Most people know that the information they need is on the label, but when they read the label, they find it hard to understand. In this article, I am going to help you make sense of it so that you can have success when applying Bow and Arrow or Bin-Die.
Reading the label of selective herbicide products like Bin-Die and Bow and Arrow will give a very clear, exact amount of herbicide mls to be applied per square meter (or hectare). However, when the labels give the amount of water needed, they give a range of numbers that are suitable per meter (or hectare).
This often stumps a lot of people so let me explain it to you here.
The most important number to get right is how much herbicide concentrate is being applied to the lawn. That is why there is an exact number given on the label. Too much and you can damage the lawn; too little and you may not control the weeds as desired.
The exact volume of water is important but there is a lot more flexibility before damage, or a lack of success occurs. This is why there is an exact number for the herbicide concentrate and a range for the water: anything within that range will be fine. This flexibility also helps with different types of spray equipment as some need to use more water for an even application than others (there is a big difference between tractor mounted booms and hand-held garden sprayers).
How to calculate how much you need
Disclaimer: I am basing my math here on the screenshots above. This is for an example only, these numbers may be out of date when you read this article, so use the principals shared here but read your label to make sure the numbers are correct.
Bin-Die: If applying to 100m2, you will need 60ml of herbicide. Any amount of water between 10-20L will be effective.
If applying to 50m2, you will need 30ml of herbicide. Any amount of water between 5-10L will be effective.
Bow and Arrow: If applying to 100m2, you will need 50ml of herbicide. Any amount of water between 2-5L will be effective.
If applying to 50m2, you will need 25ml of herbicide. Any amount of water between 1-2.5L will be effective.
If reading this or implementing this still seems too complicated or too much work and you simply want a professional to look after everything for you, contact Silverstone Gardening today. We have several licensed spray technicians who will be able to help with any weed control problem you have.