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Old 05-01-2009, 05:13 PM   #1
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Default Japanese beetle control

Hey all!

My bines were hit hard by Japanese beetles last year. I ended up spraying them with insecticide which killed most of the beetles (for a few days) and then I got a spider mite attack since I'd also killed the beneficial insects. This year I'd like to not spray chemicals on the hops if at all possible. What is everyone doing to control Japanese beetles this year?

I put milkey spore down last year, but that won't help for a while, even then it only kills the grubs on my property, the beetles will still fly in. I may get a bait bag to put in the front yard.

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Old 05-01-2009, 05:14 PM   #2
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The bait bags seem to attract more .

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Old 05-01-2009, 05:18 PM   #3
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The bait bags seem to attract more .
That's sort of why I wanted to put it in the front yard, far away from my hops. I have also thought of giving bags to my neighbors
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Old 05-01-2009, 05:29 PM   #4
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That's sort of why I wanted to put it in the front yard, far away from my hops. I have also thought of giving bags to my neighbors
The neighbor idea sounds good.
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Old 05-02-2009, 01:07 AM   #5
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I heard the same thing about the bags, although i may try them this year anyway. I have a good deal of open space behind my yard and it wouldn't be that hard to hang a few.

Safer Soap worked well for me. I had to spray repeatedly - every 4-7 days - throughout the worst of the infestation, but they were gone by the time they started to flower and the plants didn't suffer much from the bastards.

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Old 05-02-2009, 03:50 PM   #6
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The adults are a brilliant metallic green, generally oval in outline, 3/8 inch (8 to 11 mm) long and 1/4 inch (5 to 7 mm) wide. The wing covers are a coppery color and the abdomen has a row of five tufts of white hairs on each side that are diagnostic.

The larvae are typical white grubs that are C-shaped when disturbed. First instar larvae are about 1/16 inch (1.5 mm) long while the mature third instars are about 1-1/4 inch (32 mm) long.

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Old 05-02-2009, 07:01 PM   #7
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The adults are a brilliant metallic green, generally oval in outline, 3/8 inch (8 to 11 mm) long and 1/4 inch (5 to 7 mm) wide. The wing covers are a coppery color and the abdomen has a row of five tufts of white hairs on each side that are diagnostic.

The larvae are typical white grubs that are C-shaped when disturbed. First instar larvae are about 1/16 inch (1.5 mm) long while the mature third instars are about 1-1/4 inch (32 mm) long.
Yeah ... any suggestions on controlling their devastation of the hops?
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Old 05-02-2009, 07:43 PM   #8
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Granpa used a cup of motor oil set near his grapevines...They seem to love to take a dip in it, and never get out..

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Old 05-02-2009, 08:12 PM   #9
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wow awesome, used or fresh motor oil? I'm going to try it.

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Old 05-02-2009, 08:43 PM   #10
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Quote:
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Granpa used a cup of motor oil set near his grapevines...They seem to love to take a dip in it, and never get out..
That sounds simple enough to work!

Hmmmm japanese beetles....Which oil do Toyota recommend?
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