Thinking “Weed Control”


Pre-Emergent Weed control is like insurance for your yard! You know the weeds will come, it is just a question of when and how bad will they be this season? The cities of the valley are known to be hit with winter weed annuals after the winter rains and summer weed annuals during Monsoon season.

The goal is to prevent the seeds and spores of weeds that travel by wind and other animals from taking root in your yard.  Treating the rocks and crevices where weeds pop up while leaving no damage to the lawn or existing shrubs and trees.

We recommend a Pre-Emergent Weed Control be applied every six months to control weeds in your yard.

What does the term “pre-emergent weed control” refer to?  It means “weed prevention.” It refers to a method for preventing weeds by way of killing weed seeds and seedlings before they can germinate or establish themselves. To accomplish this, there are pre-emergent weed control products you can use to kill weed seeds before or as they try to sprout. Pre-emergent weed control can tremendously cut down on the need for mixing and spraying other chemicals to kill weeds post-emergently, after they have sprouted.

Winter annuals germinate in late summer and fall, small leaves during our short mild winter then flourish in the spring or the months of March and April in the valley. It is best to apply a pre-emergent weed control herbicide from February thru April.

Common winter weeds include:

-Spurges (Euphorbia spp) spotted spurge; ground spurge and creeping spurge typically have prostrate stems up to about ½ meter in length. Typically considered a summer annual, Arizona’s warm climate keeps this weed active year round.

-London rocket (Sisymbrium trio) Flowering December to May growing up to 36” tall with yellow flowers.

-Nettleleaf (goosefoot Chenopodium murale) coarse bushy annual with a strong unpleasant odor, 1 to 3 feet high, December to June.

-Silversheath Knotweed (Polygonum argyrocoleon)

-Spiny Sowthistle (Sonchus asper)

-Wild Oat (Avena fatua)

-Shepherdspurse (Capsella bursa-pastoris)

 Summer annuals in the valley, they germinate in the spring, mature and produce seeds during the summer, and die in the fall or winter when frost occurs.

Common summer weeds include:

-Russian Tumbleweed (Salsola kali var. tenuifolia) the classic Arizona tumbleweed.

-Junglegrass (Echinochloa colonum)

-Spurge (Euphorbia esula L.) Active August through November. Growing in a flat mat shape with little leaves, and spread throughout landscaping rocks. Contain white, sticky milky juice which may cause skin inflammation, all the more reason to not pull your own weeds!

-Red Sprangletop (Leptochloa filiformis)

-Palmer Amaranth (Amaranthus pallmeri)

-Puncturevine (Tribulus terrestris)

-Large Crabgrass (Digitaria sanguinalis)

-Bermuda grass:  This troublesome weed is very hard to eradicate when it becomes established in undesired areas. Bermuda pollen is one of the most serious sources of hay fever in the state. However, it is the most common summer lawn grass in southern Arizona. It cannot stand freezing temperatures, shade, or frequent cultivation, but can tolerate indefinite periods of drought.

-Nutsedge:  Resembling grass, Nutsedge can take over your lawn and can be hard to treat if not managed early on.

If you are sick and tired of seeing weeds on your property, and if you have tried just about everything in the book trying to get rid of them, please give us a call. We are straightforward in our approach and professionalism, and we always aim for total customer satisfaction with our complete services.

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