Question
QUESTION: I reads your response to the web in the Oak trees and the bark lice but I have the webs in acouple of pine trees and
how I noticed all of the webs was my grass under my trees
is dying. I thought it was lack of watering (even though the rest of the lawn looked good) and I watered constantly
with no luck. Today I notice the webs in the trees where
my lawn is dying. Is there a chance this is affecting my
grass beneath the trees?

ANSWER: The webs in the trees are probably some kind of webworm.  I doubt that they are affecting the grass under the tree.  If the trees are big they may be taking up all of the water you are putting on and the grass gets none, and thus is dying.  The other cause could be lack of sunlight.  Most grasses require about 6 hours of full sun to survive.  Another cause could be fungal disease.  It depends on the type of grass you have.  There may also be an insect involved.  Please respond back with more specifics about your grass and maybe I can help determine why it is dying.  Thanks.

---------- FOLLOW-UP ----------

QUESTION: My trees are fairly small they are about 4 years old. The grass is in the sun most of the day but so is most of the
lawn that is still healthy. It is a patch of about 15'X 15'
I did the test where you take a can and push it in the soil and add water to see if there are any bugs but I don't
know if that test is any good or not. I can't see a fungus but I'm not sure if that is something you can see.

Answer
If the grass is St. Augustine it may have a fungal disease.  First, make sure it is getting enough water.  If you want to treat with a fungicide, you can use Bayleton fungicide purchased as a granule which can be spread over the affected area.  Another option is to use Daconil fungicide which is a liquid that can be sprayed onto the affected area.  There are two fungal diseases that you may search on google.  One is called brown patch and the other is called take-all root rot.  See if either of these matches what is going on in your lawn.  Bermudagrass may also be affected by a disease called spring dead spot.  All of these are treatable.  I hope this helps.  Good Luck.