Insect and Pest Damage

Lawn pests like grubs, chinch bugs, and armyworms are notorious for causing stress to lawns, particularly in North Carolina’s temperate climate. Grubs feed on the roots of grass, while chinch bugs and armyworms feast on the blades. These pests can cause immediate visible damage and leave your lawn vulnerable to further stressors.

Effects:

  • Uneven Growth: Insect damage often shows up as patches of dead or dying grass, particularly in areas where the pests have been most active.
  • Weakening of Grass: As pests feed on grass roots or leaves, the grass becomes weak, unable to absorb water and nutrients, and may eventually die.
  • Attracting Other Pests: Damaged grass can attract secondary pests, including ants or rodents, further exacerbating the problem.

Learn how to identify signs of grub damage.

Heavy Rain and Flooding

Heavy rainstorms, particularly during the spring and fall, are common in North Carolina. While rain is generally beneficial for lawns, excessive rainfall or flooding can be detrimental. Poorly-draining soils (common in clay-heavy regions) can lead to waterlogging, which stresses grass by suffocating the roots.

Effects:

  • Root Rot: Excess moisture prevents oxygen from reaching grass roots, which can lead to root rot and fungal diseases.
  • Soil Erosion: In areas where the grass is sparse or the soil is loose, heavy rainfall can erode the topsoil, further damaging the lawn.
  • Fungal Diseases: Persistent wet conditions create an ideal environment for lawn diseases such as rust, powdery mildew, and brown patch.

Heat and Drought

North Carolina’s climate is characterized by hot, humid summers, and this can cause significant lawn stress, especially during periods of drought. The summer heat, combined with insufficient rainfall, puts pressure on the grass by drying it out and reducing its ability to thrive. During these conditions, cool-season grasses like fescue and bluegrass are particularly susceptible, as they require cooler temperatures to grow. Even warm-season grasses like Bermuda and Zoysia can show signs of stress when the summer heat becomes too intense or when there’s insufficient water.

Effects:

  • Dormancy: Grass, especially cool-season varieties, may go dormant to conserve energy and moisture. While it may look brown, this is a natural survival mechanism.
  • Dryness and Browning: Grass blades begin to lose their color and may even dry up completely, resulting in bare patches.
  • Weed Growth: As the grass weakens, it opens up space for weeds to take root and spread.