En EspaŅol

Q. Who is Mr. Smarty Plants?

A: There are those who suspect Wildflower Center volunteers are the culpable and capable culprits. Yet, others think staff members play some, albeit small, role. You can torture us with your plant questions, but we will never reveal the Green Guru's secret identity.

Help us grow by giving to the Plant Database Fund or by becoming a member

Did you know you can access the Native Plant Information Network with your web-enabled smartphone?

Share

Ask Mr. Smarty Plants

Ask Mr. Smarty Plants is a free service provided by the staff and volunteers at the Lady Bird Johnson Wildflower Center.

Search Smarty Plants
    
 
See a list of all Smarty Plants questions
Can't find the answer in our existing FAQs, submit a question to Mr. Smarty Plants.
Need help with plant identification, visit the plant identification page.
 
rate this answer
Not Yet Rated

Wednesday - August 14, 2013

From: Charlottesville, VA
Region: Mid-Atlantic
Topic: Diseases and Disorders, Pests, Vines
Title: Tip Dieback on Lonicera sempervirens
Answered by: Anne Van Nest

QUESTION:

I have a Lonicera sempervirens (coral honeysuckle) vine in Virginia which does well early in the season, but then around July, the very tips of its shoots (just the last 1-2 inches) wither, turn black, and die. It looks like the kind of damage a cane borer would cause. Except for this, the rest of the plant seems healthy. I'd be grateful for any advice about what the problem may be, and how to fix it.

ANSWER:

Lonicera sempervirens (trumpet honeysuckle) is a popular garden plant that could have problems with aphids, soft-bodied sucking insects that excrete a sugary substance (honeydew) that coats the leaves. A black fungus (sooty mold) then will grow on the honeydew.  Aphid damage often occurs on the new growth. Other problems include leaf spot diseases and environmental damage from drought, drowning and edema reports the University of Illinois extension.

Other problems reported by Edward F. Gilman from the University of Florida extension could include four-lined plant bug causing sunken, round, brown spots on the leaves. Scale insects infesting the stems and branches or powdery mildews forming white dust-like substances on the leaves.

Nancy Szerlag on the gardening.yardiner.com website offers one additional (and more likely) possibility, honeysuckle leaf blight. She has observed that a fungal blight disease attacks new honeysuckle leaves causing them to curl severely and turn brown or black, then fall prematurely. Remove and destroy infected plant parts and spray the vines every 7 to 10 days with a copper-based fungicide from the time buds swell to just before flowers open.

 

 

From the Image Gallery


Coral honeysuckle
Lonicera sempervirens

Coral honeysuckle
Lonicera sempervirens

Coral honeysuckle
Lonicera sempervirens

More Vines Questions

Vine for trellis in California
August 15, 2008 - What type of climbing flower/plant would grow best on a trellis in an alcove that receives morning sun from a south eastern direction? I live in San Luis Obispo, CA. I have had good luck with jasmine ...
view the full question and answer

Yellowing leaves on Carolina jessamine from Las Vegas NV
March 21, 2014 - Carolina jessamine, has yellow leaves. 3 years old, grows on south wall, full sun. Same plant, in partial shade, has green leaves. Should I feed yellowish plant some nitrogen? If yes how much?
view the full question and answer

Native vines to cover limestone walls in Austin
April 28, 2008 - We are moving into a house in Austin that has three tiered 5'- 6' retaining walls in the back yard. They are huge and somewhat of an eye sore. We have some cool landscaping ideas to make the most ...
view the full question and answer

Poison Ivy in Semi-wetland Massachusetts
June 27, 2013 - You answered this question for Tennessee, but I would like an answer for a Massachusetts semi-wetlands area: What can I plant to discourage poison ivy, or at least make it very clear that it is poison...
view the full question and answer

Vine for a fence in San Saba County, Texas
October 22, 2012 - I want to plant vines on a deer proof fence close to my house for privacy. Are there any vines that stay green year round? Also what breed of vine would you recommend for several hundred feet of fenc...
view the full question and answer

Smarty Plants's Facebook profile Support the Wildflower Center by Donating Online or Becoming a Member today.

Mr. Smarty Plants wants you to be his Facebook friend. Click the Facebook icon to add yourself to Mr. Smarty Plants list of friends.
E-NEWSLETTER | BECOME A MEMBER | DONATE NOW | MEDIA | SITEMAP
© 2014 Lady Bird Johnson Wildflower Center