Regrowth after ponytail palm rot?

QuestionHi - I inherited a lovely ponytail palm in a pot and its been doing well in my apartment for over a year, but a couple weeks ago I noticed that the base of the leaves were white and soft, 2 of the 3 bulbs we

Fruit Tree Diseases

Questionplum tree QUESTION: I have 2 problems. 1 is my new dwarf plum tree which i have only had a couple of months. I thought it had green fly but now looks like a white powder on the underside of the leaf w

Elm Tree with Peeling Bark

QuestionElm Tree Damage QUESTION: I have an elm tree that has begun to peel its bark in large quantities. Attached is a picture. Can you identify this from the photo? And can the tree be sav

Sargent Crab - rust & yellowing leaves

QuestionI live in Greeley, Colorado and have a Sargent Crab that has been in the ground about 3 years, always healthy until this year. Leaves are yellowing and rust is appearing on the leaves. What to do

Bramley apple tree

Question 0674 The bark at the base of my tree has become dark and cracked. What could it be and what shoul I do about it? AnswerNigel: This looks like old mechanical injury (tools/lawnmower/other equipment) that m

galls

Questionhave apin oak that is covered top to bottom with galls ave 1-3.5 in diameter any cure? any prevention tree located in illinos AnswerThese are called horned oak galls. The horned and gouty

Cone flower disease

Questiona large amount of our cone flowers are cut off about two inches beneath the flower. a little black line appears on the stem, and the flowers fall over and hang from the cut...? AnswerDan: I would suspect a

tibouchina

QuestionI recently bought one of those lovely plants. it looked beautiful. I have it in a very sunny location, I keep it moist and yet it lost all its flowers the first week and now the leaves are yellowing. What do

Arborvitae - green leaves dropping

QuestionI live in Durham, NC and have an arborvitae at the corner of my house. The tree was planted in 2004 and has done well. Over the last few weeks it has been dropping a lot of green leaves (needles)

crepe myrtle leaves

Questionon crepe myrtle appearence of white eggs? small white worms and what apears to be white delta shaped flies.white soot and a stickey substance AnswerSounds like white flies. Whiteflies damage plants b

Rosemary and Thyme disease

QuestionHi Dr Vann, I have a question regarding a disease on a few of my plants. All 3 plants are sharing a large window planter box and each of them are developing the same symptoms. The plants are a c

bagworms/pinetree worms

Questionwhat can of spray can i use for them? i have 4 pine trees in my yard and one has died. the worms are getting on my porch and hanging from my house. what should i do now? AnswerMake sure this is bagworms fir

Problem with Eastern White Pine

Question White Pine Disease I have several pines that have developed an apparent disease that has covered most of the trunk with a white substance. I request your expert advice on diagnosing and treating the p

Brown rot on peach tree

QuestionI have a peach tree that has the fruit turning brown and rotting. I looked up and see it is brown rot. The fruit is close to being ready to pick, maybe a week. Is it to late to spay? or can I pick the fruit

Cast Iron (Aspidistra)

QuestionSeveral of my plants (on north side of house) have yellow leaves (ends are brown). Too much sun? Live near coast in San Diego. Used to have large trees with more shade but neighbors removed

Disease on Lilac

QuestionI Live in the Pacific NW. My Lilac that has been here since we moved in, has developed a brown spotting in the leaves and the leaves are slightly curled, this tree is at least 20 years old. This has spread t

leaves turning yellow

QuestionI just planted a prairifire crabapple tree, 2 weeks ago. the leaves are turning yellow, starting at the inside. what have I done wrong? AnswerSharon: Based on the time frame that you indicated, I would not

Japenese Maple Tree

QuestionI planted a lace leaf japenese maple in my flower bed in May. We notice that the tips of the leaves are turning brown. This started in one area of the tree and appears to spreading throughout the entire tree

A question about my new weeping willow tree

QuestionLate April this year, i planted a baby weeping willow tree. I check it everyday and water it often. Lately, Ive been noticing at the tips of the leafs, theyre getting black. What does that mean? Also some of

Honeysuckle plant disease

QuestionOur honeysuckle plant gets this problem each summer. Leaf yellowing starts, and quickly the leaf becomes solidly deep yellow, with one edge burnt dark brown. The remaining yellow leaf curls aroun