University of Illinois Extension
March 29, 2018
Richard Hentschel

Richard Hentschel, host of Green Side Up, talks about common questions coming into the Extension office - including early spring care of shade trees, pruning, dormant oils in our home orchards and the timing for crabgrass preventer. We are still in the window for dormant pruning of our maples, elms and oaks, but for different reasons. Spraying dormant oil on our fruit trees needs to happen when we begin to have nights above 32 degrees for at least 24 to 48 hours. Crabgrass control will need to wait until soils warm and remain consistent.

 
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