En EspaŅol
Share

Ask Mr. Smarty Plants

Mr. Smarty Plants - Are non-native hostas causing fly invasion from Eastpointe MI

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

Sunday - July 14, 2013

From: Eastpointe, MI
Region: Midwest
Topic: Non-Natives, Pests, Herbs/Forbs
Title: Are non-native hostas causing fly invasion from Eastpointe MI
Answered by: Barbara Medford

QUESTION:

I live in Michigan with a small backyard. I have 5 large hostas with the purple flower blooms which are located by my patio. I was wondering if they can be causing my large population of unwanted flies? Any advice would be helpful.

ANSWER:

From Wikipedia: "Hosta is a genus of about 23–45 species of plants commonly known as hostas, plantain lilies (particularly in Britain) and occasionally by the Japanese name giboshi. Hostas are widely cultivated as shade-tolerant foliage plants. The genus is currently placed in the family Asparagaceae, subfamily Agavoideae,  and is native to northeast Asia."

The Lady Bird Johnson Wildflower Center, home of Mr. Smarty Plants, is committed to the growth, propagation and protection of plants native not only to North America but to the area in which they evolved; in your case, Macomb County, in southeast Michigan.

Therefore, this plant is out of our area of expertise, but we can at least address your question as to whether they are attracting flies. All we could learn was that the only insects the hostas attracted were snails and slugs. There is a native member of the group called "carrion flowers" - Lysichiton americanus (American skunkcabbage). They smell like rotting meat and thus draw in the flies that happen to be the pollinators of the plant.

However, we found no indication that the genus Hosta smells that way nor that it is pollinated by flies. It is more likely the too-fresh manure in some recently-installed fertilizer or a small dead animal in your garden is what is attracting flies.

 

 

 

More Pests Questions

Disappearance of leaves on desert willow in Tucson AZ
August 08, 2009 - We have a Lois Adams Desert Willow (Tucson, Az). The leaves will pump out and then a day or so later, all of the leaves are gone. The only bugs we've seen on it are very, very small ants. Could this ...
view the full question and answer

Snails in the ice plants in California
May 31, 2011 - Ice plants and snails. Every morning when I go outside I see at least 20 or more snails. Is there a certain way that I should have planted them that would have prevented them from destroying my plant?...
view the full question and answer

Problems with Monterrey Oak in Austin
March 26, 2013 - We had a local tree service plant two Monterrey Oak trees on 4/2/2012. At the time we noticed that woodpeckers had had a field day on the trunk bark of both trees with the most damage being on the lar...
view the full question and answer

Eliminating muskrats from a cottage garden in Ontario
August 22, 2010 - We have perennial gardens at our cottage and for the first time this year the muskrats have come and leveled everything..shasta daisies, coneflowers, day lilies, phlox, etc. Any suggestions as to how...
view the full question and answer

Sticky material dripping from tree in Austin
July 22, 2012 - The tree in my backyard is dripping what I surmise is sap - a thick,fdrake1@ sticky substance in July. What kind of tree is it and is there anything one can do prevent this from happening? Thank you...
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