sago palm

Questionhi, I have had my sago palm for about 15yrs. Recently the fronds have yellowed, there are some black spots on them and they are all just drooping over. I repotted it about 5 months ago and not sure if

Oil

QuestionHi, after long time. How are you. I want to know the difference between T. S. O and S. O. What is basic difference between both. AnswerDear Vivek, It is very good to hear from you after such a long ti

Myers Lemon tree Pest

QuestionQUESTION: The leaves on My Myers Lemon Tree are turning yellow. I have noticed and picked off what look like small caterpillars, they are firm and look a bit like a stem of growth off the branches. They are

Fungiside control

QuestionSir,fungiside spray is applicable during blooming?Which is the best pestside for curbing the scab? AnswerDear Irshad, I am so sorry to be late with this reply. You can apply fungicide spray to apples

Fungus on sambo lemom tree

QuestionI have a sambo lemon tree in a pot that it was purchased in fla sometime in early 2009. Late last season, I noticed that there was a white colored (SOFT LIKE) substance on the tree. It grew fruit and I have

Meyer lemon tree disease

QuestionI live in Southern CA, in the Coachella Valley lower desert. My meyer lemon tree was VERY HAPPY and prolific for years. I had it pruned a few months ago for the bottom branches only, right around blossom tim

Whats Going on With my Lavender???

QuestionDead Young Leaves QUESTION: Hi Melissa, Can you tell me what disease my lavender is having by looking at the photos? I seems that the new young leaves are turning grey. I have tried cutting the dead

Dragon Lady Holly Tree

QuestionStripping on bark,not holes is causing slow death of holly tree? Not woodpecker as some people have suggested cause there are no holes???? Any suggestions AnswerDear Jon, It sounds like you may have borers.

autumn maple blaze

Question trunk tree Hi, we had a landscaper plant a tall autumn maple blaze in our backyard about 2 1/2 years ago. Its the only tree in our backyard so its important to us. Since, weve had several lands

fruit tree disease

Questiondear sir, i live on the greek island of corfu. we have about 10 lemon trees and three orange trees that are about 25yrs old. they have never been any trouble until this past year. the leaves have turned blac

Pin Oak Disease affecting leaves

QuestionI am trying to save my mothers tree and cannot find anything online. This tree has some disease where the vascular system of the leaf becomes engorged and brittle, eventually causing the leaf to curl i

cocoa plum

QuestionI have a cocoa plum hedge that has the lower leaves turning yellow and falling off. It was very healthy 2 weeks ago. My lawn service did do some spraying of weed killer along this hedge. Could that be the pr

October Glory Maple issue

Question full tree close up of dead bloom I have a 10yr old October glory Maple that some of the branches got buds but the buds died rather than open to leaves. Can you tell me why this might happen?

spider mites on Burford Holly bushes

QuestionWe have sprayed with soapy water - let stand 15 minutes and hosed off. One set of these hollies look damaged w/ black mold looking stems and dying leaves. Can we cut them back and will they come

Plum trees

QuestionDr. Vann, For the last two years, I have had two plum trees that after fruit starts growing,they turn color like they are ripening long before their time. They are small and just fall off the tr

cucumber disease

Question cucumber Hi Melissa, Id like to know which disease makes my cucumber plants turn yellow and what can I do about it without using pesticides. AnswerHello Abrek, I believe that your cucumber plants

leaf narrowing on Rose of Sharon; necrotic tissue on ornamental pear

QuestionQUESTION: Dear Dr. Vann, I work at a nursery; a customer brought in some leaves for me to take a look at. Rose of Sharon: the shrub in question is mature and has been healthy over its lifetime

Tiger Eye Sumac and Weeping Spruce

QuestionI have 2 questions for you. I purchased a weeping norwegian spruce a couple weeks ago. It was already in bad shape when i bought it but i usually am good for buying half dead stuff and then bring

A whitesh Growth on Rhododendrons

QuestionThis year after it had bloomed there was a growth on the limb near the ends and it some times grows all the way around a limb and it gets as big as my fist. This is not the first year I have had it. Sometime

Barbados Cherry Tree

QuestionI have a Acerola (Barbados Cherry Tree)that up until 4 days ago was producing wonderful fruit. My family and I went on vacation, came home, and now the tree has brown curled leaves and has no fruit on