Possible fungal disease and mulch. Two part question

splash79 · July 17, 2015

Last week, I noticed that the lower leaves of some of my tomato plants were turning yellow. I haven't pinpointed the exact issue, but suspect either early blight or Verticillium Wilt and will be bringing a sample to a local garden center for confirmation.

We've had an extreme amount of rain this year (I think only 3 days in May were dry and maybe 6 in June), so things out there have been very wet, so the potential for fungal issues has been high.

Due to a variety of reasons, I didn't mulch the bed, but I bought some mulch yesterday and now I have questions.

My plan had been to mulch the bed, then till and/or leave the mulch there over the winter to help amend the bed, since I'm dealing with clay soil. However, now I'm reading that tilling in mulch is a bad idea, because it ties up nutrients until it breaks down.

1) Is it a mistake to use mulch in this manner? The mulch in question has not been aged.

2) Am I creating a good habitat for whatever fungus that's attacking my plants if I use mulch to begin with? My primary objective is to try and limit splashback, but I also don't want to create an ideal environment for the spores.

3) Would it be best to use the mulch, then remove and dispose of it after the season because of my concerns in question 2?

July 17, 2015	#1
splash79 Tomatovillian™ Join Date: Feb 2015 Location: mo Posts: 24	Possible fungal disease and mulch. Two part question Last week, I noticed that the lower leaves of some of my tomato plants were turning yellow. I haven't pinpointed the exact issue, but suspect either early blight or Verticillium Wilt and will be bringing a sample to a local garden center for confirmation. We've had an extreme amount of rain this year (I think only 3 days in May were dry and maybe 6 in June), so things out there have been very wet, so the potential for fungal issues has been high. Due to a variety of reasons, I didn't mulch the bed, but I bought some mulch yesterday and now I have questions. My plan had been to mulch the bed, then till and/or leave the mulch there over the winter to help amend the bed, since I'm dealing with clay soil. However, now I'm reading that tilling in mulch is a bad idea, because it ties up nutrients until it breaks down. 1) Is it a mistake to use mulch in this manner? The mulch in question has not been aged. 2) Am I creating a good habitat for whatever fungus that's attacking my plants if I use mulch to begin with? My primary objective is to try and limit splashback, but I also don't want to create an ideal environment for the spores. 3) Would it be best to use the mulch, then remove and dispose of it after the season because of my concerns in question 2?