Good Morning ... I spent much of Saturday doing Spring Clean-up and was surprised to see some weeds have started to grow. Please help identify the following: 1) the small leaf weed with little white flowers. 2) wide blade grass among the fescue. Thank you so much ...
The first photo is chickweed, a winter annual weed. Winter annuals actually germinate in the fall and spend the winter getting established, so that at the first hint of nice spring weather they can burst into growth. Here is our webpage on chickeweed which explains its growth and control: https://extension.umd.edu/hgic/common-chickweed
The second photo is not crabgrass (it's too early for that). It could be a perennial weed grass such as quackgrasss : https://extension.umd.edu/hgic/quackgrass
Or, if you recently seeded your lawn, it could be an annual grass.
Keep your lawn mowed high (3 1/2-4") to shade out weed seeds. Never mow during drought.
Follow the culture outlined in this online pub: http://extension.umd.edu/sites/extension.umd.edu/files/_images/programs/hgic/Publications/HG102-Rev-...
And, you might enjoy looking through our weed galleries. Just put 'weeds' in the search box.