Apple trees

QuestionHi . How are you, here we are enjoying winter and busy in planting new Apple trees. I have bought trees from government agencies. I also tried to get more information on varieties but could not o

Cleveland Pear issue

QuestionScale Shapes Yellow Color on Leaves QUESTION: Hello, I live in Colorado and have a Cleveland Pear that I had planted 3 years ago. I have what looks like little white oval shapes on a couple

trumpet flowers

QuestionI have to trumpet flowers that I bring In every fall because I live in Wisconsin. They have never bloomed, This fall they had some white stuff on the back of the leaves. The leaves all fall off when I bring

lemon and lime disease

QuestionQUESTION: i have a lemon and lime, the leaves are not in good shape, it looks like someone has spate on them, also the leaves are curled. I have used a fugercide on them, but not much success, I can not see

Potted Meyer Lemon

Question lemon1 lemon 2 I live in zone 3, Montana, and we heat with wood heat. Hard to keep humidity in the air. Move plant out in summer. 10yr. old lemon and I have always struggled w

What plants could survive in a fig orchard

QuestionHi again and thank you for your answers. My fig orchard is between 2 and 4 years old (total 600 trees planted about 20 feet apart in different levels surfaces). Unfortunately the drainage is poor in the wint

Oak Tree Bark disease

Question Oak Tree trunk Good Afternoon Mr. Hyland, I live in Lake Elizabeth,CA in Southern CA. I have a 4 year old oak tree that has strange symmetrical bark damage. This pattern goes all around the t

Dying yucca plant leaves

Questionyucca leaves yucca leaves QUESTION: Hi Melissa, I bought a yucca plant (3 plants varying in height in one container) that seemed to be in very good health about 3 weeks ago. I bought a pot (wi

White stuff on leaves

Question Orange leaf I have 2 citrus plants in pots. They both have a white substance underneath the leaves. Some of the leaves are curled on the Orange plant. It does not look like bugs. &n

about Italian Cypress

Questionsarath cypress sarath cypress QUESTION: We have about 25 trees on our drive way they may be old at least 25 years. When we bought this house on 2001 these trees still was there. This start happ

poison ivy growths

Question poison ivy growths I see these bushy growths fairly often on poison ivy. They are still around in the winter, looking like clumps of fiber, but as you can see in the photo they are green and kind of

White fungus on Crown of Thorns

QuestionSame as above Crown of Thorns QUESTION: HI Mr. Vann, I have a blooming CoT that Ive had for almost a year. I live in the San Francisco area. The plant spent all last summer on my covered deck

oak tree bark

QuestionSome of my oak trees have 1/4holes around the trunk from bottom to first limbs, is this normal I live in north fl.almost to ga. AnswerHey Paul: If these holes seem to be in an orderly manner such as grouped

White fungus-looking growth on mulberry tree

QuestionQUESTION: I live in southern Georgia, and my mulberry tree, which was planted last spring, has developed a white fungus looking growth only on the north side of the trunk and limbs. No other trees clos

Japanese Plum Tree grown from seed

QuestionOur Japanese Plum Tree (seeds from Barcelona, Spain - about 6 years old) appears to be dying. Noted black substance on trunk at ground level. Leaves are wilting - in the middle east they are called escadania

Diseased Euphorbia trigona

Question diseased cactus I have had My cactus for about a year and as i have learned more about them i have released that she is perhaps diseased. I got her from my sister where it had been left behind by the

Savannah holly

Question Disease branch Branches form holes large knots branch dies tree lumpy AnswerHi Jeff, By my observations in the photo, it appears that you have some gall formation. These are usually the resu

Horizon Mango tree

Question Mango tree photo I live in SW Florida. My mango tree seems to have more than one problem going on. The leaves and branches have turned black and the branches and leaves have little round bumps all ov

Potted patio Myers lemon tree

QuestionMy tree is growing very large leaves. The plant is about 5 years old . I cut it back to the trunk because of this and no lemon production. Now it is producing leaves 3 times the size of normal leaves and doe

Crown rot

QuestionQUESTION: Dear Dr. Vann, What microbe causes crown rot, and what chemical can I use to protect my D. muscipulas from that disease? In college, I took biology and microbiology, but my background is in compu