With Organic Lawn Care lawn pests like grubs, billbugs, and sod webworms are rarely an issue. One more advantage to organic lawn care. These pests are attracted to the unnatural growth caused by synthetic fertilizers and can cause serious damage to the appearance and integrity of a lawn. If lawn pests do become an issue, we attack them with nematodes. Nematodes are microscopic organisms that seek out and destroy harmful insects like grubs. They begin working in as little as 24 hours. Only under extreme circumstances do we consider chemical control.