Good morning and thank you for contacting the UNH Extension Infoline.

Identifying the weed and trying to determine why it has invaded is the first step in managing broad leaf weeds in lawns. I do not see any grass in the photos you sent.   A healthy lawn would deter most weeds.  My first recommendation would be sample your soil to determine its health.  This is the link https://scholars.unh.edu/cgi/viewcontent.cgi?article=2783&context=extension&preview_mode=1&z=<personal data hidden>

Here are the four main methods of weed management:

• Mowing: Preventing Seed Spread.
• Pulling: Killing the Roots.
• Smothering: Blocking Sunlight.
• Herbicide: Chemically Killing.

Also, compacted soil encourages weeds and not grass.  This is a link to starting a lawn.  https://extension.unh.edu/resource/seeding-new-lawn-video

Thank you David for your response. Unfortunately, that is how the lawn looks now, with weed invasion and hot weather, grass has gone dormant and sparse. Attaching soil test results from May 2024. This test was done by the Sunday fertilizer company. Please let me know if this would suffice or do you still recommend doing a soil test? 

Best,

Gunpreet 

The soil test is very comprehensive.  The issue I see is that your pH is too low.  At 5.7, the nitrogen, phosphorous, and potassium are almost immobile in the soil.  They are not available to the roots.  It is great soil for growing blueberries.  Your soil has a lot of sand and little clay meaning water and nutrients go through the soil quickly.  I recommend adding lime to raise the pH.  A general rule of thumb is 40 pounds per 1000 square feet to raise pH from 5.7 to 6.7.  The finer the grain of lime, the quicker it reacts but the pellet form is not as messy.  It will take a few months for it to have an impact.  It needs to be watered in.