emerald arbovitaes disease?

QuestionQUESTION: Dr. Van We have 19 emeralds I am very concerned about.Much like Trish we have a golden/orange foliage turning on inside to outside and some of the foliage is dying. We are in N.E. Georgia and hav

junipers & boxwoods

QuestionQUESTION: I will try to explain as best as possible; firstly we recently moved into a new home that already was landscaped nicely. Young boxwoods were placed in a hedge L-type design; starting closer t

Cleveland Pear in trouble?

QuestionWe bought a Cleveland Pear about 2 months ago (late August) and planted it immediately in our backyard to serve as a shade tree. The lady who worked at the nursery told us to water it daily for the first two

boxwood problems

QuestionI planted three boxwoods about 2 months ago. Purchased from a very reputable nursery. The leaves on the bottom halves of the shrubs have started turning a whitish gray color. Is this normal, or do you know w

mold in and on soil

QuestionOk im not going to candy coat this so please do not get offended . I grow medical marajuana for myself and my stepson whom has a musclediease so we make butter and cook with it for his joints and tendons etc

Black Knot on Cherry Trees

QuestionMy wife and I have a 7 acker lot on a lake in Northern Minnesota. A summer place and we will be back in mid May. About three years ago we noticed that many of the Cherry trees--of which we have lots--were in

green growth on maple tree trunk

Question maple tree trunk I live near Philadelphia and have a treasured maple tree in my backyard that has a fairly heavy green growth on its trunk and branches. I am attaching a close-up photo for your review

brown spots on maple leaves

Question maple leaf I live near Philadelphia and have an almost 30-year-old maple tree in my backyard. This fall I have noticed a predominance of brown spots on the maple leaves, and it appears that the fall c

white rice looking things on all leaves of gardenia plant

QuestionI brought the plant for the winter and it has developed in a short period of time this white rice looking things all over it. what do I do. How do I get rid of this ? It is on all leaves it seems. AnswerHi

mulberry trees

QuestionDo large black blotches on the trunk of a Mulberry tree indicate some type of disease? AnswerSounds like Lichens. Lichens are an example of a symbiotic relationship between algae and certain fungi. They are

Weeping Willow Disease

QuestionMy old, formerly-healthy Alameda, CA weeping willow is suddenly exuding a clear, gelatinous substance I believe to be frothy flux, from other information Ive read. Is it prudent to err on the side or letting

white spots on maple leaves & holes on trunk of tulip tree

QuestionWhat are the white spots on maple leaves? Can this be spread to other trees? There are small round holes on the bark of my tulip tree. They are equally spaced around the trunk and distance betwe

Apple tree

Question Apple Hi, I moved in this new place and theres an apple tree in the yard. The apples are quite small and dont look too good, and neither do the leaves (See picture). I asked the previous owner of the place

lemon infestation

Question lemon infestation Dr Vann, my lemon tree has an infestation of black, semi circular growths all along the branches. when i picked some off it was all dry underneath. there are also a lot of ants running aro

Japanese Maple infested by borer

QuestionQUESTION: I have discovered my maple tree arrox 30 yrs old has a disease on the bark which has killed one limb and is lifting sections of bark as it travels up the tree. Can you tell me what to do about it a

sick Yucca plant

QuestionHi, This is a follow up to my previous questions about my Yucca. Im in the middle of looking at the roots. It isnt at all as I expected. First, even thought he plant was in a huge pot, the roots were totally

peas

Question peas I have a small hydroponic garden using auto-pot technology.My snow peas were producing really well and then the plant started to die off. The temp here has been in the high 30oc for the last week, I am

Krauter Vesuvius flowering plum

QuestionI have had a flowering plum for 12 years. Two years ago, I had it pruned, sense that time it blooms very little and does not leaf-out in the spring. It is on the north side of the house and in an area

diseased ligustrum

QuestionI live in Hollywood Florida and have several ligustrum in my garden, planted in the ground. They were probably planted in 1985 or maybe even in 1960. I noticed that on one tree about a quarter of the leaves

small bead-like structures in soil

QuestionHello, I have small (approx. 0.5 - 0.75 mm) white bead-like structures that are spreading in the soil of my potted plants. They started in the soil of a succulent (Night-Blooming Cereus) that was give