Frequently Asked Questions

What’s the difference between pre- and post-emergent weed treatments?

– Pre-Emergent Treatment is an excellent prevention tool that works by restricting seed germination, thereby stopping weeds before they even have a chance to appear. During treatment, a water-based or granular substance is applied to lawns, gardens, landscaping, or anywhere weeds have the potential to grow.

– Post-Emergent Treatment is a spot-treatment for weeds that are currently visible and is designed to stay in place, even in wet conditions. Once the product has been absorbed into the stem, leaves and roots, clients will see results within 3-7 days.

When is it time to do pre-emergent application?
If you haven’t done one in the last 6 months, the answer is now! Since weeds are a year-round issue in Arizona, we recommend a pre-emergent treatment every 6 months to keep your surroundings looking sharp.

I had a pre-emergent application. Why do I still see weeds?
Occasionally, some seeds may have already germinated prior to application (especially if it’s the first one), meaning that, although they are not visible at the time of treatment, they are now full-fledged plants and can’t be killed by the pre-emergent product. We recommend having a post-emergent treatment done, followed up with new pre-emergent treatments every 6 months.

Will either type of treatment leave odors or stains on my lawn, concrete, decks, etc.?
Both pre- or post-treatment materials are low odor and won’t harm or stain surfaces of any kind. The pre-treatment product is infused with color to ensure thoroughness of application, but will disappear completely within 10 to 14 days.

Is either type of treatment harmful to people or pets?
At Younger Brothers Weed Control, the safety of our clients, their families, pets and customers comes first, which is why we use latest, safest products available. The materials used in all our treatments are nontoxic to surrounding plants and safe for both people and pets a mere 4 hours after application.