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Have Colorado Potato Beetles?

Peony Jay


Joined: Mar 24, 2012
Posts: 145
Location: B.C.
Hi. I am new to permaculture but have been a lifelong organic gardener.
My husband loves potatoes and insists on planting potatoes in our garden every year. Well, we have those bleeping Colorado Potato Beetles every year. I use the old search and destroy method. (Squeeze the eggs on the underside of each leaf and pick off the adults.) Have any of you planted companion plants like catnip, tansy and sage? Did it work?

What methods would you use to get rid of CPDs?

BTW, I'm starting a new permaculture garden in my actual Zone 1 area because my garden and compost pile are so far away. (More like the Zone 3 area of my land.) I have lots of bush wackin' to do and the soil needs serious building up. Also, I may wish to dig up a berm and swale to capture the water that seriously pours out of the hillside each spring!!

Wish me luck!!


My Marxist Feminist Dialectic Brings All The Boys To The Yard!
John Polk
steward

Joined: Feb 20, 2011
Posts: 6661
Location: Currently in Seattle. Probably moving 1 hour north by end of the year.
    
138
Plant beans by your spuds. Beans help repel Colorado potato beetle, and potatoes help repel the Mexican Bean Beetle.
Good combo.
Peony Jay


Joined: Mar 24, 2012
Posts: 145
Location: B.C.
Thank you.
Craig Dobbelyu
pollinator

Joined: Dec 22, 2011
Posts: 997
Location: Maine (zone 5)
    
  34
Eliot Coleman reccomends mulching heavily with straw just after potato emergence. Soil moisture and temperature are more stable that way so the potatoes are less stressed. Less stress=less bugs. I'm also planning on using a light row cover until the bugs have found greener fields elsewhere.


"You may never know what results come of your action, but if you do nothing there will be no result”

-Gandhi
Peony Jay


Joined: Mar 24, 2012
Posts: 145
Location: B.C.
Thanks for your input. I think I already have the blasted bugs. They overwinter in the soil. I think a row cover wouldn't help in my situation.
Craig Dobbelyu
pollinator

Joined: Dec 22, 2011
Posts: 997
Location: Maine (zone 5)
    
  34
Are you planting your potatoes in the same area every year? If you go through the plants and crush all the bugs and eggs you can find, then cover it with row cover, you could be able to determine whether they are flying in from another place or coming up from the soil. You may find that you're getting more bugs from afar than from the soil. Or vise verse. That may help prevent re-infestation. Know thy enemy. Think long term. Best of luck.

Let us know how it goes.
Cee Ray


Joined: Nov 26, 2011
Posts: 85
Location: BC Interior, zone 5a
    
    1
from Growing in The Garden and Greenhouse According to the Homeodynamic Method (http://www.moodie.biz/enzobooks.html)

Even potatoes, if grown for two consecutive years on the same plot, are surely affected by colorado potato beetle, as the colorado potato beetle is an insect that winters underground. Once the potatoes are put in the ground in the second year the colorado potato beetle awakens and attacks. There are three steps to avoid this:

1) open the furrows in the soil at least 15 days before the sowing of potatoes and sprinkle with a juice, diluted in water, obtained from shoots of potatoes. This reawakens the insects which emerge from the "lethargy" and, not finding the potatoes in the ground, will die of hunger. It is important that the spraying is carried out at least 15 days before sowing, since the colorado potato beetle can withstand even 7-10 days without food.
2) spread some lithotamnium algae powder in the sowing furrow , and then sow. This powder, in addition to being a fertilizer, will damage the jaw of the insects
3) collect and mix colorado potato beetle larvae in jars of water exposed to the sun for about 10 - 15 days until the larvae lose their form. Sprinkling this liquid (diluted) takes away the colorado potato beetle for a fortnight.

There is also an inhibitory action brought by growing some marigolds in the row of potatoes.
Karin Schott


Joined: Apr 19, 2012
Posts: 10
Location: Western foothills of Maine
I was going to try another method I heard of this year and plant them later than I usually do. We have black flies here in Maine and I usually put them in in early May. It seems a scurry to get as much in before the flies appear and make working outside a little crazy making. But I heard that if you plant the spuds later then the the beetles can't find them when they expect them. I use row covers too and have had good luck with them.
Walter Jeffries


Joined: Nov 21, 2010
Posts: 907
    
  18
We use chickens and ducks. We put a few into the potato patch for a couple of days and then take them out. They gobble up all the insects and then are gone before they trample things.

Cheers,

-Walter Jeffries
Sugar Mountain Farm
Pastured Pigs, Sheep & Kids
in the mountains of Vermont
Read about our on-farm butcher shop project:
http://SugarMtnFarm.com/butchershop

Check out our Kickstarting the Butcher Shop project at:
http://www.kickstarter.com/projects/sugarmtnfarm/building-a-butcher-shop-on-sugarmountainfarm
Peony Jay


Joined: Mar 24, 2012
Posts: 145
Location: B.C.
Thanks for all the great ideas! BTW, I have tried marigolds w/o success.
Varina Lakewood


Joined: May 15, 2012
Posts: 116
Location: Colorado
    
    1
I live in Colorado, and have certainly seen infestations of Colorado potato beetle. However, I've been growing potatoes in the same spot for three years and growing tomatoes every year without seeing even one. I never thought to wonder why until I read a couple days ago that catnip repels them. We have catnip growing wild all over our backyard/garden area. Maybe its a coincidence, but its worth a try.
 
 
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