When to Apply Herbicides
Gardening experts share tips on when to apply pre-emergent and post-emergent herbicides.
Learn how to identify and control troublesome weeds. If you don't want to use herbicides, you can either starve the roots by continually removing new shoots or block out light by covering the ground with black plastic or matting.
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The cloverlike leaves spread rapidly, and can invade lawns. Annuals have explosive seed pods; perennials have bulbils. Yellow oxalis in lawns resists selective weedkillers, so try scarifying in autumn.
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Gardening experts share tips on when to apply pre-emergent and post-emergent herbicides.
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