Q. I have a Norway Maple, 2 years old, that’s showing signs of powdery mildew especially on new growth. What do you recommend? Jack Ravenel – Tacoma, WA A. First I would see if there is a way to improve air circulation around the trees. This will keep the leaf surfaces dry which will inhibit…
Category: Gardening Q & A
Here you will find answers to questions from gardeners around the country. Some answers pertain to all but others are more regional so have a look at them all. You will also see that the Gardening Q & A is broken down into the following regions so please use the drop-down Categories menu to the right to see specific regions :
Sticky stuff and flies on cars and driveways
Q. We have a large Tulip Tree, about 25 years old. For the first time we have a fly infestation on the tree and all over the driveway and cars. We powerwashed the drive, etc. but to no avail. Are flies attracted to Tulip trees? There seems to be no other attraction for them except…
Clematis Wilt
Q. One of the vines on my new Clematis wilted followed by the other three doing the same. I nearly threw it away, but instead replanted it in another spot. This spring it sprouted and produced a beautiful many-vined plant. Around a month ago it again started to wilt. Again I pruned it down and…
Rhododendron lace bug
Q. I have a rhododendron that is infested with rhododendron lace bug. Last year I bought an insecticide to rid my infested rhododendron of lace bug. Unfortunately it didn’t work. I realize that I need to spray beneath ALL the leaves to truly be effective-, which is the problem. Should I remove most of the…
Bright orange pods on maple leaves
Q. I have a large Maple tree. Last year small (ball bearing size) round empty bright orange pods started growing in clusters on the leaves. I took a leave to Peninsula Gardens and nobody there knew what they were. When the leaves fell off we raked all of them up off the ground hoping that…