Photo by Melody

Colorado Potato Beetle (Leptinotarsa decimlineata)

Order: Coleoptera (ko-lee-OP-ter-a) (Info)
Family: Chrysomelidae
Genus: Leptinotarsa
Species: decimlineata


No positives
No neutrals
6 negatives


This bug has been reportedly found in the following regions:

Brownsboro, Alabama
Aurora, Illinois
Tuscola, Illinois
Laurel, Indiana
Rising Sun, Indiana
Letts, Iowa
Ewing, Kentucky
Morehead, Kentucky
Paris, Kentucky
South China, Maine
White Pigeon, Michigan
Cohasset, Minnesota
Winchester, New Hampshire
Trenton, New Jersey
Saluda, North Carolina
Novelty, Ohio
Oklahoma City, Oklahoma
Hummelstown, Pennsylvania
Columbia, Tennessee
Pocahontas, Tennessee
San Marcos, Texas
Wichita Falls, Texas
Yakima, Washington
Greenwood, Wisconsin

By mygypsyrose
Thumbnail #1 of Colorado Potato Beetle (Leptinotarsa decimlineata) by mygypsyrose

By Zaragoza

Thumbnail #2 of Colorado Potato Beetle (Leptinotarsa decimlineata) by Zaragoza

By Zaragoza

Thumbnail #3 of Colorado Potato Beetle (Leptinotarsa decimlineata) by Zaragoza

By drobarr

Thumbnail #4 of Colorado Potato Beetle (Leptinotarsa decimlineata) by drobarr

By drobarr

Thumbnail #5 of Colorado Potato Beetle (Leptinotarsa decimlineata) by drobarr

Member Notes:

Negative melody On Jul 27, 2006, melody from Benton, KY
(Zone 7a) wrote:

Found throughout most of the US and Canada, the Colorado Potato is quite destructive to potato fields and other Solanaceae.

The adult lays small clusters of orange eggs on the undersides of lraves. The larvae hatch and reach full size in 10 to15 days. They then drop to the ground and pupate. adults emerge in 10 to15 days.

There are usually 2 generations a year.

Negative MoriahCyr On Jul 26, 2007, MoriahCyr from Yakima, WA
(Zone 6b) wrote:

Found this pest... pestering my flowering tobacco. NOTHING has previously bothered this plant as I hear it is somewhat toxic. Hmmm...

Negative Pottersfields On May 24, 2009, Pottersfields from Morehead, KY wrote:

I'm surprised not to find more posts on this critter.
Is there any viable solution to ridding oneself from these pests? Currently I use the daily hunt method of picking them off and searching the underside of plant leaves for eggs. I've used Seven and wood ashes, without any meaningful results.? Any suggestions?
Thanks.:) Happy gardening.

Negative MaterMan2 On Jun 8, 2009, MaterMan2 from Tuscola, IL
(Zone 5b) wrote:

I just read that ammonia watered down will kill them....I am about to go find out.

Negative distlog On Aug 2, 2010, distlog from Paris, KY wrote:

I see this subject hasn't had any comments for some time but thought I would add my words anyway. We have an infestation of these things in central KY this year & they are bad. They have pretty much destroyed our potato vines & now have moved on to the tomato plants & tomatoes themselves. Yesterday I found them on some of the pepper plants. Rotenone & Seven won't touch them. I'm going to try the amonia that was suggested in the last post.

Negative ratlover1 On Jun 10, 2011, ratlover1 from Rising Sun, IN wrote:

First year I've seen these guys. Hand picked them off my tomatoes, and squashed or scraped off all the eggs I could find. Apparently I missed a few clutches since last night I discovered a couple dozen larvae happily munching away. Hand picked them (yik!). I then sprayed w/ insecticidal soap. Don't know if that will help or not, hopefully I got them all anyway. Very destructive but if caught early enough plants seem to recover fine.

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