lilac problems

QuestionMy lilac branches appear to be dying. They have a sort of greenish-grey spotted coating on them. The affected branches no longer have leaves on them. Is this some sort of fungus? What do you suggest? Answer

Scale, Black dust & Oil

QuestionI live near Guadalajara Mexico and have a container garden with these plants in the sun all day. I have just been told that I have scale on my triangular palm, 3 croton and a couple of other plants. On the p

Dying Air Plant (Tillandsia)

Question Air Plant Hi, I recently bought a little Air Plant, and everything was going fine until I left it home alone for the weekend. When I came back, it was brown and wilted. Can it be saved? What can I do

Growths on Oak Tree

QuestionWe have just moved to a home in Northern California with a large, mature oak tree that has nodules or round pod-like growths on its branches. The growths appear in clusters and are green when smaller, turnin

aliens taking over my Oak Tree??

Question alien thing What are these things please. I thought maybe they were wasp galls, but am not so sure.. I dont mind them using the tree as a host, however,dont want it to kill my oak as it is REALLY large and

Yellow leaves on sago palm

QuestionWe have 2 Sago palms which have some yellow leaves. Is this a situation where the soil is not acid enough or is it something else? Thanks AnswerOthell: Yellowing of leaves can be caused by a number of thing

What is wrong with my new Japanese maple?

QuestionI planted two Young Japanese Maples about 5 to 6 feet tall ,about two weeks ago. One is doing well, the others leaves look wilted , like dried out leaves. I mixed peat moss and topsoil into the hole before I

Galls on maple leaves

QuestionMy daughter is a tree climber, and her favorite tree is the maple tree. She recently noticed the red pimples on the maple leaves and is now afraid to climb the tree because she is afraid there are little bug

Poplar Tree

QuestionHello, I have a poplar tree my grandfather planted about 50 years ago that appears to be on its way out. It started 3 years ago when I noticed one half of one of its branches was dead. I thought it might com

eastern red cedar decline

QuestionI have a 50 ft high 16-20DBH red cedar tree that appears to be dying. The foliage is very sparse and yellowish. I built a house about 100 feet above this tree. Also there was a pine thicket

Aspen pines

QuestionLast year I paid TruGreen and they treated my dwarf Aspin Pines for mites and a deep feeding. How can I treat my Aspin Pines for mites and what is the procedure for deep feeding. Thank you; Sam

lemon & apricot diseases

Question lemon Not sure if I was able to send all pics or not?!! AnswerHi Cindy, You tree has a good case of sooty mold, which can be corrected. It is a friendly fungus which causes your leaves to turn black

Flower Plum Tree

QuestionMy flowering plum blossomed as usual this April. Now I have noticed that there are not many leaves and the ones that are there are not purple but green and limp. The bark looks fine. My 2 o

saga palm gel

Questioni have a clear gelatin substances on the end of the cut limbs of my saga palm, it is clusters it is not sticky can you help AnswerOlivia: I suspect that this material is from the plant in response to the in

Spotted Discoloration on all Plants

QuestionSpotting QUESTION: Dr. Vann, Today we noticed light whitish-tan colored spots on the leaves of virtually every plant (even the weeds) in our garden. We dont know if it is a problem with a particular d

oleander in SC -leaves are yellowing

Questionmy neighbor asked me about her oleander, the leaves are yellowing and dropping. I check for any of the usual little pest and saw nothing. But, there is new growth and it looked happy and healthy ( from what

CRINKLEY leaves on meyers lemon

QuestionI have a potted lemon tree that the leaves crinkle and then they fall off. Is it a virus and is there any treatment. AnswerGood Morning Charles: There might be several reasons for the distorted leaves, but

non blooming yoshino cherry tree

QuestionWe have two yoshino cherry trees. One on either side of the drive. One tree has bloomed and is full of leaves, appears to be quite healthy. The other tree is full of buds but the buds will not open. I have c

pink dogwood tree diseases

QuestionWe live in Central Okla.and have a pink dogwood that seems to be infected with some kind of blight. The top branches have blackened shriveled leaves and the tree leaves appear wilted. What is wrong with the

Leafless Fruitless Mulberry Tree

Question Fruitless Mulberry We have a very old fruitless mulberry tree that was very green and lush when we first moved in to our house, in spite of years of neglect. We had the tree trimmed the winter before last,