Colorado Potato beetle - Leptinotarsa decemlineata

Discussion in 'Garden Pest Management and Identification' started by Durgan, Jun 1, 2007.

  1. Durgan

    Durgan Contributor 10 Years

    Messages:
    2,625
    Likes Received:
    95
    Location:
    Brantford,Ontario, Canada
    http://ColoradoP.notlong.com 1 June 2007

    http://Colegs.notlong.com 2 June 2007 Egg Cluster

    1 June 2006. The Colorado Potato Beetle made its appearance today. I picked bout 15 off the potato plants, and removed some eggs on the underside of some leaves. Potatoes have been grown the last three years, and every year there are a few more Colorado Potato Beetles. All I do is pick them off the plants daily, since they are not in quantity.

    Years ago my small potato patch was destroyed in one long weekend. Upon returning from a trip the potato leaves were completely covered or what was left of them. With a large infestation and a large field spraying is necessary. Good luck for the organic gardeners.
    http://www.durgan.org/Blog/Durgan.html
     
    Last edited: Jun 2, 2007
  2. dandy

    dandy Member

    Messages:
    28
    Likes Received:
    0
    Location:
    Nanaimo B.C.
    Hello Durgan: Would you look at my post "orange and black beetles" and tell me if you think they are colorado potato beetles. I went on the website "bugguide" and somebody thought they were. Thanks.

    Yvonne
     
  3. Durgan

    Durgan Contributor 10 Years

    Messages:
    2,625
    Likes Received:
    95
    Location:
    Brantford,Ontario, Canada
    dandy. I looked at your post and the problem was solved. Your bug was not the Colorado Potato Beetle.

    18 June 2007. Update. I am now picking second generation Colorado Potato Beetles. Apparently I missed some egg clusters on the 50 potato plants. For the last six or seven days I am finger destroying about 20 per day. It appears I am winning the battle. Today I only got about ten.

    This method would be impossible on a large planting, and some pesticide would have to be used. But next year I will really concentrate on destroying the first over-wintering beetles, and look more carefully for any egg clusters, which are relatively easy to spot.

    Since about 5 June I have not encountered any adults. Thank Goodness.

    http://www.durgan.org/Blog/Durgan.html
     
  4. Dunc

    Dunc Active Member

    Messages:
    95
    Likes Received:
    0
    Location:
    Port Alberni B.C. Canada
    One year in the Ottawa Valley I was overcome with the beetles and lost most of my harvest. The next year I bought bulk onions bulbs at the farm store provider and planted an onion between each spud. I hilled them both as usual and had nary a beetle but, onins that looked like leeks, companion gardening works.

    Enjoy your comments Durgan, Dunc
     

Share This Page