What is a weed?    “What is a weed? A plant whose virtues have not yet been discovered.”   ~ Ralph Waldo Emerson

Identify weeds first before selecting a control. VCE Prince William can help! 

Bring us a sample of the weed or send photos to our Extension Horticulture Help Desk.   Mondays and Tuesdays are the best days to bring in samples; hours are 8 am – 5pm at 8033 Ashton Ave, Suite 105, Manassas, 20109.  Please call (703) 792-7747 or email master_gardener@pwcgov.org  before bringing in a plant or insect so that we may make best use of your time. 

General weed control recommendations

  • Prevent weeds from taking over by mulching appropriate
  • A healthy turf is your best defense against weeds in the lawn
  • Choose weed-free seed
  • Hand pull weeds before they produce seeds.
  • Limit foot traffic to avoid compaction and core aerate
  • Provide proper irrigation to actively growing plants
  • Soil test to identify proper pH, lime, and nutrients
  • Use proper mowing heights to shade out weeds
  • Use chemicals as a last resort; select chemical based on proper weed identification and where the weed is located
  • READ LABEL CLOSELY for proper application, timing and reapplication requirements
  • If a weed is particularly aggressive, then suspect an invasive plant.  Invasive plants require a higher level of control  
  • Check with us if there are bees foraging before using any chemical treatment.