Have you noticed dying or dead patches in your lawn? An insect may be the culprit behind this problem. While you are scouting for your IPM program, examine the clues and see if you have insects in your lawn.
If you have yellow or reddish-brown patches of grass, chinch bugs may be to blame. As Texas A&M Agrilife Extension explains, you can test for them by removing the ends of a large tin can and push it down into the area that is affected. Once you fill the can with water, chinch bugs will float to the surface if they are present.
Some garden pests like Japanese beetles (Popillia japonica) start out as grubs (larvae) in the soil. They love to feast on grass roots, so it is no surprise that they can cause your lawn to die. One sign is that you have brown patches of grass that can be pulled up in a sheet. You may also try digging in the ground under these spots to see if you have C-shaped grubs present.
While many nematodes are an integral part of good soil health, some of these tiny roundworms like to feed on the roots of grasses, creating brown patches over time. This one may be a bit harder to diagnose and you may need to send a soil sample to a laboratory for analysis.
Red Imported Fire Ants
One dreaded denizen of lawns is the red imported fire ant. In addition to contending with the destruction of your grass when they build their mounds, you also face the potential of being the recipient of painful stings if you are unfortunate enough to cross their path.
If there seems to be a lot of moths hanging out by your problem spot, you may be facing the sod webworm. This larva likes to chomp on the leaves. It may not be too problematic at first if not many are present and there is only a little bit of foliage thinning, but as more come, brown patches may form.
If you need help in identifying the particular pest in your lawn, give us a call. This is an important step to make sure you use the right treatments and resolve the problem successfully.
Image by bobistraveling under a Flickr Creative Commons Attribution License