1. A friend is looking for a crab apple tree that produces crab apples (small edible apples about 2 inches in diameter) that is Minnesota hardy. What do you suggest? Published: December 19, 2007
2. What do zones in Arizona mean? Published: December 19, 2007
3. Can you tell me how to propagate flowering dogwood from seed? Published: December 19, 2007
4. We have a couple of young peach trees that I started from seed. They were taken from delicious white-fleshed peaches. Do they reproduce true from seed? Published: December 19, 2007
5. Why are my trees showing drought stress when I water the lawn every night with my automatic sprinklers? Published: December 19, 2007
6. Why does my crabapple drop its leaves each June? Published: December 19, 2007
7. I think my rhododendron is dying from phytophthora root rot. What can you tell me about this plant disease? Published: December 19, 2007
8. Is there a way to prevent my sweet gum tree from producing those spiny fruits? Published: December 19, 2007
9. How do I save a tree struck by lightning? Published: December 19, 2007
10. Last year my apple trees had a bad case of cedar apple rust. We removed the nearby cedar tree and sprayed this year with a fungicide. Unfortunately, I can count on one hand the number of flowers that are blooming. Will the trees resume blooming in future years, or will they be "fruitless" from now on? Published: December 19, 2007
11. What is the proper procedure for dealing with a cavity in a tree trunk? Published: December 19, 2007
12. It's late summer, and I have noticed my Bradford pear is blooming again. What causes return bloom this late in the season? Published: December 19, 2007
13. What is the best way to stake a tree? Published: December 19, 2007
14. What is the correct way to plant a tree? Published: December 19, 2007
15. How do I know if my apple tree is dead? Published: December 19, 2007
16. I want to plant two dwarf apples and a dwarf cherry in my yard (16 by 24 feet). The exposure is south and west, and the soil is mostly yellow clay and rock. Is there any way to amend the soil for trees? Published: December 19, 2007
17. Why do all my magnolia leaves and flowers have holes in them? Published: December 19, 2007
18. Will mistletoe kill my water oak tree? Published: December 19, 2007
19. Can you tell me how I can determine the sex of a holly plant? I have a female and I'd like to buy a male. Published: December 19, 2007
20. How much mulch should I use around my landscape plants? Published: December 18, 2007
21. How do I control suckers in my aspens/silver poplars? Published: December 18, 2007
22. We planted a Bradford pear last weekend and the leaves are turning brown. Is this normal? If not what should we do about it? Published: December 18, 2007
23. What are the bumps all over my maple leaves? I’ve seen similar things on the leaves of hackberry and oak as well. Published: December 18, 2007
24. What is the plant advertised as a tree tomato? Published: December 18, 2007
25. I have some white, fluffy-looking stuff growing on my oleander plant where a branch comes out from another branch. What is it? Published: December 18, 2007
26. It seems that no matter what type of care we give our Ficus tree, the leaves just keep falling off. Now it seems like it is dying. What are we doing wrong? Published: December 18, 2007
27. A friend brought me an acorn he picked up in Arkansas that is as big as a racquetball and mostly overcup, with only about 15 percent of the nut protruding from the bottom. What kind of oak is it? Published: December 18, 2007
28. A rubber plant has been in our school greenhouse since the beginning of the year. Our greenhouse, until recently, could not hold the correct temperature. Two weeks ago, when it was about 40 degrees F, all the leaves fell off. Should I prune it back? Published: December 17, 2007
29. How do you control scale on ornamentals? Published: December 17, 2007
30. I have a large, old sweet gum tree in my back yard. I was told if I put Epsom salts around the tree at a certain time of year, I could prevent the tree from making fruit (balls). Is this true? Published: December 17, 2007

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