En Español

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

Freeze damage to Mexican olive in Austin
December 13, 2009 - I have a Mexican Olive tree/bush. It is young - about 8 ft. tall. This last freeze in Austin made many of its leaves turn black. I got this from your database: "Its native range extends no farther...
view the full question and answer

Fast-growing tree, non-toxic for horses, in Northern California
March 18, 2010 - Hello..I need to find a fast growing shade tree, native to California (I live in Northern California, south of San Francisco) that would be safe next to (but not in) my horses paddock. Obviously some...
view the full question and answer

Safe time to trim live oak trees
June 20, 2008 - Our live oak trees need a little trimming, as some of the branches are hanging too low, almost to the ground. We planted them about 5 years ago, so they are well established, healthy trees. My husband...
view the full question and answer

Reducing the Height of a Redbud Tree
January 23, 2016 - We have a very large, about 15-year old, Redbud tree that is growing so tall it's obstructing our view of the river. How and when can we prune this tree back so it does not hurt the tree.
view the full question and answer

Fast-spreading desert-type tree with thorns in yard
July 21, 2014 - There is a fast spreading tree in my backyard - many multiple almost symmetric flat green oval leaves on either side of the stem (sort of like a moringa tree but this is not that). Grows straight up, ...
view the full question and answer

Support the Wildflower Center by Donating Online or Becoming a Member today.
E-NEWSLETTER | BECOME A MEMBER | DONATE NOW | MEDIA | JOBS | SITEMAP | STAFF INTRANET
© 2016 Lady Bird Johnson Wildflower Center