What impact does a black walnut tree have on tomatoes?
It can kill them. The root of a black walnut produces a toxin called juglone which will poison tomato plants as well as most other plants. Q: Is insecticidal soap the same thing as dish soap? A) NO! Insecticidal soap is a commercial product that was developed to kill certain insects while not harming beneficial ones. It is biodegradable, breaks down within a couple of weeks, and is safe to use with pets and people. In order to be effective, insects must come in direct contact with the soap. Q) Should the foliage on my peonies be cut back after blooming? A) No. The foliage should not be cut until it has been killed by a hard frost. The food manufactured in the foliage is stored in the roots, and thus helps produce flowers for the following year. If the foliage is cut back shortly after blooming, the plants are deprived of their next year’s food supply. Q) Will the tulip bulbs bloom again after the flowers are cut off? A) They will not bloom again this year but if most of the foliage is