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Pre-Emergent Weed Control


This water-based application is sprayed over dirt, landscaped rock or lawn areas to control the growth of broadleaf annual weeds. Pre-emergent means simply - before emerging. This material stops seeds from germinating, thus stopping weeds before they start. Because pre-emergent products only affect the seeds, they can usually be sprayed over existing plants without affecting them. According to manufacturers labels, pre-emergent products last from 4 to 8 months when applied correctly. In Arizona, depending on the property, and the weather, we can expect to get a solid 6 months of pre-emergent barrier protection. No matter the property, applying pre-emergent to the landscaped areas every 6 months is the best approach to keeping your propertry weed free.


Pre-emergent products work by inhibiting key enzymes in the seeds or very early seedling growth of unwanted plants.  The inhibiting of enzymes suppresses the cell division and elongation, which doesn't allow the seedling to germinate, thus leaving you with no weed growth.  Specifically, the pre-emergent most commonly used, Pendulum Aquacap, is classified as K-1 by the HRAC (Herbicide Resistance Action Committee), which is defined as "Microtubule Assembly Inhibition."  This Inhibition is what discourages the plant from progressing beyond the seed/seedling stage.  


Pendimthalin, the active ingrediant in Pendulum Aquacap, is registered gloabally, including the EPA in the United States, for use on croplands, and non-croplands alike.  


Because of our experience and expertise in the field that we do business, it is Arizona Weed King's standard operating procedure to apply products correctly, and completely within the guidelines of the products' label, and applicable State and Federal Laws.  It is important to hire a licensed pest control professional, like Arizona Weed King, to insure that pesticides and herbicides are applyed consistent with their label, and local and national regulations. 


To verify that your pest-control professional is correctly licensed to apply pesticides in the State of Arizona, please follow the link below:






To get more information, or request an estimate for our services, please follow the links below:

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