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Scout for Aggressive Weeds Post-Harvest in Almonds

October 2, 2019
This agronomic image shows harvested almonds in a field

Harvest is a good time to take note of weed issues within your almond orchards. The next step is to scout your orchard post-harvest to identify aggressive weeds to make a management plan for this fall and next season.

What, When, Why and How to Scout for Aggressive Weeds

  • What: Note the weed species, like marestail or fleabane; location in the field; degree of control achieved with current program; and herbicides used in the past. If you need help identifying weeds in different stages of growth, consult the names and photos here.
  • When: The best time to scout is after the first rains of the fall, when winter annuals have germinated and are starting to emerge (November – January).
  • Why: Weeds compete with almond trees for water and nutrients, which can be detrimental to an orchard
  • How: Monitor in a thorough and systematic manner including the field margins, ditch banks and irrigation canals.

After scouting for aggressive weeds, select the appropriate pre and post-emergence herbicide that best controls the weeds present. A tank mix of 1 or more herbicides may be required to control all of the weed species. Broadworks® herbicide provides preemergence and post-emergence control of weeds, including glyphosate-resistant broadleaf weeds. The best control is achieved when applied either before weeds germinate or before they reach 4” tall.

To learn whether Broadworks is approved for use in your area, visit this page. For more information, talk to your Syngenta representative.

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