I love cedar trees, pine trees, etc. We have a lot of cedar trees in Mo. Hubby has cut them all down on our lots, except for one. It is huge and I can look out the window and see it when I am on the computer.
He wants to cut it down too. He said it is going to kill the apple trees. I said well we shall wait and see. So far they are still alive and it’s been 7 yrs. But he planted them too close to the walnut tree, so I think that could be why we don’t have apples.
I haven’t found any problems with cedar trees, but black walnuts can be difficult:
Potential Problems - Aside from leaf spot, Black Walnut is virtually disease and pest free. However, it is famous for the production by its roots of juglone, a chemical that is toxic to some nearby competitor plants. In a woodland setting, very few plants grow under the canopy of this species. When summer drought occurs, the response of this tree is to begin dropping leaves, in spite of its deep taproot system. In an urban setting, a constant rain of leaflets, rachises, dead twigs, stain-laden whole fruits, and debris from squirrel feeding occurs from mid-summer until late autumn, presenting a constant clean-up chore and mowing hazard.
and
PLANTS SENSITIVE TO BLACK WALNUT TOXICITY
Annuals and vegetables: asparagus, cabbage, eggplant, flowering tobacco, pepper, petunia, potato, tomato
Herbaceous perennials: autumn crocus, baptisia, columbine, lily (Asian hybrids), peony, rhubarb
Shrubs: blueberry, red chokeberry, cotoneaster, Amur honeysuckle, hydrangea, lilac, privet, potentilla, rhododendron, yew, and some viburnum shrub species
Trees: European alder, white birch, crabapple species, hackberry, larch, linden, saucer magnolia, mugo pine, red pine, white pine, Norway spruce, silver maple, and some viburnum tree species