burr oak problem

Questionbur oak QUESTION: I have a young burr oak that has developed a wound and is seemingly leaking. Is this a problem? Do I need to remove the tree and replace it? Can I help the tree? &n

Skyline honey locust leaflet drop

QuestionHealthy appearing leaflets are falling off my 20 foot tall skyline honey locust the leaflets appear h althy no chew marks no chlorosis there has been no herbicide or insecticide sprayed on

maple tree disease

Questionour maple tree have white spots on the trunk. The bark seems to be splitting also..I can see on some of the trees woodpecker damage dianea AnswerDiane: Can you send a closeup photo of these spo

Dipladenia

QuestionRust spots on underside of leaves. All flowers have dropped off and none seem to be coming back on. AnswerDear Alma, You are located quite far north to be growing a dipladenia and I admire your effort

Sunset Maple- Stunted leaves

QuestionI have a sun set maple tree. Its about 15yrs. old This spring the tree developed new growth but the leaves remain small and stunted in growth. We have 4 hosta plants growi

Blotches on Oakleaf Hydrangea Leaves

QuestionHello Dr. Vann. Thank you for answering my question. My name is Tim Elliott, and I live in Kingman, KS (zone 6b). Attached are three links to photos of my recently planted Snow Queen Oaklea

tri color beech

Questiondead? holes QUESTION: Got a six foot baby last year. Planted autumn. Thirty feet from a big maple. I did not know, and I planted it thirty feet from a long established black walnut too. A secti

Sickly toubichina and more

QuestionIve had a tibouchina for more than 10 years. It has been thriving, Needing only some occasional pruning. I recently brought in a lot of new redwood mulch and redesigned the garden. Suddenly the large shrub i

bee balm

QuestionI have noticed my bee balm have (looks like a fungus)or mildew on the bottom leaves.I do not have a clue on what the problem may be.HELP Thanks in advance AnswerDear Carroll, You may well have a

Red Apple Iceplant

QuestionAbout a month ago our red apple iceplant was green and beautiful. We watered as normal, but the next day it rained (we live in SD, Ca - which has been in a drought for a while so it was nice and weird to hav

Fig tree disease

QuestionHi, My figorchard in thr middle east is now 3 yrs old. Season is around early august. I have many trees With leaves getting brown spots starting in center not periphery, and the fruits falling prematurely b

Cherry tree

QuestionHi, the back side of the leaves on my two year old cherry tree are covered in a fine white powdery substance. Can you identify and advise how I may get rid of such a substance?? Thank you kindly Sir..

Japanes Maple disease

Question Japanese maple disease I have a lace leaf maple which is showing some kind of disease. It looks like white cotton candy around the stem. I see it on 3-4 locations. Please help. AnswerDear Rinji, Yo

Ganoderma fungus on Palm tree

QuestionDoes the product Atomic Grow work on Ganoderma and salvage palm trees infected with the disease? Apparently the main ingredient is Pine oil. Thanks for your help. Derrell AnswerDear Derrell, Im a bit

Promoting Conditions For Good Fruit set In Apple Orchards

QuestionHi Melissa Apple Ochard in low height(India HImachal Pradesh Shimla) so everything bit early from bud break to fruit set to harvest a month early. I wanted to ask you How can we ensure that there is a goo

Pinto palm

Question Pindo Ms. Crowley, First let me thank you for your time . I see you are in Florida I am in Arizona and so is my pindo palm . We had this pindo for approximately 3 1/2 years .  

Green film on Crown of Thorns

QuestionMy Crown of Thorns plant have branches that have turned green. There are also some branches that are green at the bottom but have not reached the top. You can also see where the green appears to be spreading

Pachypodium leaf curl

QuestionThe one pachypodium I have developed a problem with the new leaves turning grey and dying. One other pachypodium I have had the same issue.I think the problem started with yellow mushrooms that had grown in

Propagating cactus

Question cactus cactus My cactus suddenly started developing four babies this summer Photos attached. As you can see they are placed on top of the plant and rather cramped. I know one should detach the

A sick plant(?) and a book about plant pathology

QuestionHi Melissa, Despite the care instructions, some people still treat flytraps as houseplants. Some carnivorous plant experts I talk with stop growing temperate plants, including flytraps, because they d