Host an Event Volunteer Join Tickets

Support the plant database you love!

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

Please forgive us, but Mr. Smarty Plants has been overwhelmed by a flood of mail and must take a break for awhile to catch up. We hope to be accepting new questions again soon. Thank you!

Need help with plant identification, visit the plant identification page.

 
rate this answer
Not Yet Rated

Sunday - May 02, 2010

From: Pittsburgh, PA
Region: Mid-Atlantic
Topic: Trees
Title: June bug larvae destroying Red Twig Dogwood in Pittsburgh, PA
Answered by: Barbara Medford

QUESTION:

June Bug larvae are destroying my Red Twig Dogwood. I have treated with Milky Spore, but the long wait for benefit is too long to save the ailing plant. What can I do? HELP! Thank you from the bottom of those poor roots,

ANSWER:

According to this USDA Plant Profile, Cornus sericea (redosier dogwood) is native in and around Allegheny Co. PA, so it's where it belongs, but it does seem to have a lot of pest and disease problems. In addition to the June bug larvae you were asking about, it also is susceptible to twig blight, scale and bagworms. We found a couple of Internet sites that have more information about this slug and beetle, with suggestions for control: June Bugs Lead to Lawn Grubs  from North Carolina State Extension Service and How To Get Rid of June Bugs from HowToGetRidofStuff.com.

Since we are neither entomologists nor plant pathologists, we would suggest you contact the Pennsylvania State Cooperate Extension Office for Allegheny County for more close-to-home help. You can bet if you are having that much trouble, others in your area are, too.

From our Native Plant Image Gallery:


Cornus sericea

Cornus sericea

Cornus sericea

Cornus sericea

 

 

 

More Trees Questions

Impenetrable privacy hedge in Wimberly, TX.
July 26, 2011 - I live near Wimberly, TX. I'd like to grow an impenetrable privacy hedge about 200' long and at least 10' tall and 10' deep (or more) using native plants. I'd like it to be evergreen, drought t...
view the full question and answer

Growing non-native grapefruit from seeds from Austin
April 30, 2013 - Can you grow ruby red grapefruit trees from seeds?
view the full question and answer

Failure of smoke tree to bloom in Alburtis PA
September 07, 2009 - For whatever reason, my smoke tree did not bloom during its second season. Any ideas?
view the full question and answer

Why are my potted Prunus caroliniana plants shedding leaves in LA, CA?
May 02, 2011 - I bought Prunus caroliniana in pots to use as privacy fence on my balcony. Have had them for about 6 weeks and they are shedding a lot of leaves. Some leave are drying out and others have what ...
view the full question and answer

Problems with water oaks from Laurel MS
October 05, 2013 - The leaves on my mature water oak trees have been falling since the leaves matured. My area has had an abundance of rain this year, 11 inches above normal. All the trees in my area are doing the same....
view the full question and answer

Support the Wildflower Center by Donating Online or Becoming a Member today.