Being Selective

Use the wrong weed killer?

One of the best things about carrying a cell phone is you always have a camera with you, because you never know when a 'photo op' is going to present itself. One such photo opportunity was on a lawn I recently walked past...

lawn herbicide damage

What happened here?

   Lawn disease spreading??

      Insect damage or moles???

The answer became rather obvious when I noticed some dead broadleaf weeds (mostly dandelions) in the path of destruction. Someone had used the wrong weedkiller (or there is an outside chance they mixed the "right" herbicide at the wrong rate, making the mix too concentrated).

weedkiller damage on lawn

My educated guess says the wrong herbicide, which brings us to "being selective."

Most herbicides fall into one of two categories: Selective or Non-Selective.

A selective herbicide, mixed at the proper rate, is designed to kill broadleaf weeds (like dandelions) without damaging grass.

A non-selective herbicide is designed to kill all vegetation. One of the most commonly used ones today contains the active ingredient glyphosate.


The weeds in this lawn were probably "spot-treated" with a non-selective herbicide. A different conclusion is possible once I speak with the homeowner.

Whatever the case may be, remember the advice contained in 3 simple words...


The next three words should be obvious...


I've included some additional links about herbicide applications below.


Update: The homeowner later confirmed that a non-selective herbicide was mistakenly used.



Proper handling of pesticides

Cutting back on lawn chemicals

Good lawn mowing techniques


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