Biology of depression. Scientific studies have found that numerous brain areas show altered activity in patients suffering from depression, and this has encouraged advocates of various theories that seek to identify a biochemical origin of the disease, as opposed to theories that emphasize psychological or situational causes.
1 They eat the roots and stems of small and young plants which can cause disease and kill the plants. 2  An often over looked problem that grubs cause is they attract other pests. 3  Many animals eat grubs and that can damage your lawn as well.
The summer months are also a time when youâre likely to see more pests and insects in your lawn as tiny creatures search out for water. Many beetles and other insects lay their eggs in the grass during the early parts of the summer, which hatch into grubs during the middle of the season that will eat at your grass.