The weather guessers lied.

ryseryse_2004July 1, 2014

Our local news said last week that we wouldn't be seeing Japanese beetles this season since they didn't make it through the harsh winter. I was very skeptical when I heard it and sure enough a few days ago they arrived in droves!

I finally broke down and got Sevin concentrate. I will just spray it on my raspberries and Honey Crisp apple trees though because I know it kills beneficials. (I will spray in the evening) I will just let them devour my hibiscus again this year because I don't want to use Sevin in my flower gardens.

I have two traps hanging and after just 2 days, they are both full. I am wondering if they indeed draw more beetles to the area than would otherwise come. I think I will just toss them.

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greenhearted(5a IL)

:( Dang it!

My grandfather used those phermone traps on his property and it did nothing to protect his plants. I do think they only attract more, but that is my only experience with them. I've never tried them myself. Bucket of soapy water is all I've ever used.

    Bookmark   July 1, 2014 at 12:16PM
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a2zmom(6a - nj)

ryseryse, I'm sorry to hear that. Beetles started arriving for me a couple of days ago. I don't get too many - many 10-15 a day tops so I just drown them in the morning and the evening.

What's odd is I have a hollyhock that seeded into the bed in front of my house. It's pretty much nothing bu weeds there as I will be redoing the entire area soon. That plant has not one drop of rust and not one leaf toched by JBs. The hoolyhock that is actually in my bed is not so lucky.

    Bookmark   July 1, 2014 at 1:09PM
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Campanula UK Z8

The pheromone traps are used as early detection systems, not any sort of preventative......and I think they can act as an attractor. I give many thanks that these horrible beetles do not terrorise us in the UK...truly demoralising. Our non-winter has given rise to an apocalypse of pests and disease - snail banquets beyond all avarice, rusts and mildews.....although my gardens are far too full so frankly, there will be some culling this summer which can only be a good thing - survival of the fittest and all that (in fact the missing roses, lilies and laughable hosta skeletons attest to an early start on the murder season).

    Bookmark   July 2, 2014 at 5:46PM
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saltidawg(Z6 MD)

Not many Japanese Beetles this year here in the MD suburbs of DC...

    Bookmark   July 2, 2014 at 5:49PM
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First time In about 3 years I've gotten more than a handful here in NYC, I do soap-bucket-handpick method of control, seems to work.

    Bookmark   July 3, 2014 at 10:43AM
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We don't have JBs here yet - I suppose because the soil can freeze in the winter to a depth of @5 feet.

Read somewhere there's a "social" aspect to the beetles - they find one of their kind and suddenly you've got clusters. Taking into account the pheromones they exude for mating, etc.

They were pretty awful in Maryland when I lived there - they could go through a good sized purple plum ornamental like a buzz saw virtually in a day.

    Bookmark   July 3, 2014 at 11:21AM
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davidrt28 (zone 7)

" Posted by saltidawg Z6 MD (My Page) on
Wed, Jul 2, 14 at 17:49

Not many Japanese Beetles this year here in the MD suburbs of DC..."

Worse year for them ever here in NE Maryland near the upper Ches. Bay. My thinking is something that eats them usually is in short supply, or last summer's wet weather was perfect for them to set up a population explosion. Unlike DC, IIRC, I always had heavy snow cover here during the winter's freezes, so it's possible the soil didn't freeze very deep. (in fact there are plenty of indications it did not, not even as bad as in some other recent winters. Tender perennials, such as they were, had their roots survive)

    Bookmark   July 6, 2014 at 7:28AM
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davidrt28 (zone 7)

I was meaning to document this anyhow so I just went out to take the picture. My entire Zanthoxylum simulans looks like this. It will pull through though, they are already gone.

    Bookmark   July 6, 2014 at 7:36AM
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davidrt28 (zone 7)

Well I see a straggler now, but about 5 days ago there must have been well over 200 in this 9' tree. They were coating the branches. I have one of the old style zapper racquets (without the stupid safety screen) and it was fun to go out and swat at them, but it doesn't really make much of a difference. It's more useful to protect myself from flies.

    Bookmark   July 6, 2014 at 7:42AM
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