Q:We just had some new zoysia sod put in and crows are out there every evening plucking it out of the ground. Any suggestions?

A: I consulted my University of Georgia Extension friends and they say the crows are likely looking for grubs or earthworms. You can determine which food they’re seeking by mixing four tablespoons of dish soap in two gallons of water and pouring it over a six square foot area. Any earthworms present will quickly wriggle to the top of the soil. If grubs are present you should be able to lift the sod and find C-shaped white grubs underneath. Grubs can be controlled with imidacloprid (Bayer Advanced Grub Control) or halofenozide (Mach 2, Grub B Gon or Grub Ex).