Flea beetles on greens

sundacks(4a)January 10, 2013

Thinking ahead to spring plantings, I'm trying to figure out a way to control flea beetles on arugula, spinach and bok choy. These green grow well in our cool spring weather but were ruined by flea beetles last year. Row cover didn't seem to help much because the eggs overwinter in the soil.

Wondering if anyone has used Surround (the clay coating)to control flea beetle damage. I know it is used with fruiting crops like tomatoes so it would probably work on the greens. But I'm concerned that it will be hard to clean the leaves. Has anyone ever tried this?

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randy41_1

its hard to clean the leaves. but its probably good at the early stages of the plant way before harvest time.
from what i read about flea beetles (a big problem here) is that they overwinter as adults in garden debris and at the edges of the woods.when the temps are in the 50's or more on a consistent basis they become active.
row covers work well if they cover without any holes or places for the beetles to get in. i've done this with eggplant. spinosad is supposed to help but it didn't for me.

    Bookmark   January 10, 2013 at 2:10PM
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sundacks(4a)

I didn't realize that it was the adults overwintering. Maybe a really good row cover can help. How about the Surround - is it a good product to use?

    Bookmark   January 10, 2013 at 2:20PM
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cole_robbie(6)

They ate all my bok choy, too. I read that they like weather that is hot and dry. When spring turns to a hot and dry summer, they go wild and eat everything. I haven't tried it yet, but a moisture-retaining mulch might help.

    Bookmark   January 10, 2013 at 2:40PM
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randy41_1

if i were transplanting flea beetle susceptible plants i would put surround on them. but when there is new growth the surround would have to be applied again. the problem with that is if some of those leaves are your product you will be spending a bit of time washing the surround off. it doesn't just come off like dirt.

    Bookmark   January 10, 2013 at 4:43PM
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boulderbelt(5/6)

What I have done with 100% success is a combination of row covers and sticky traps made from vessels like 16 oz water or pop bottles filed with water, capped and than covered with tangle Foot. Place a bottle every 3' to 4' in the row and within 18 hours you should be FB free.

This work because the bottles warm up during the day and than at night when the air temp drops the FB jump on the traps seeking warmth and stick. You will sometimes get a good guy or two as well.

It's really hard to wash all the Surround off of crops so it looks like your leaves are covered with pesticide residue to the Organic buying public.

    Bookmark   January 11, 2013 at 4:49AM
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sundacks(4a)

Good advice! I'll definitely try the sticky traps.

    Bookmark   January 11, 2013 at 7:22AM
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