Garden Calendar – Week Of Nov. 16

Home Remodeler Blog

Here’s this week’s Garden Calendar from Lisa Johnson, Dane County UW-Extension horticulture educator:

“Fall clean-up: Rake up fallen tree/shrub leaves and compost them if healthy. If you have had significant diseases such as downy mildew, apple scab, rose blackspot, powdery mildew, buckeye/horse chestnut foliar diseases or anthracnose, take them to the yard waste center where they can be hot-composted and properly destroyed.

I have had a number of questions this year about composting maple leaves with maple tar spot. Maple tar spot is a foliar disease that attacks Norway and silver maples most commonly, forming dime-size or larger raised black lesions with yellow haloes on the leaves. Since this is basically a cosmetic disease, you don’t need to worry too much about composting these leaves, even if you don’t have a hot compost pile. Spores may survive if you don’t hot-compost (pile temperatures need to reach 135 degrees F…

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