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Controlling Japanese Beatles

Posted by ClarkinKS 5 (My Page) on
Fri, Aug 22, 14 at 7:39

Over the last several years the Japanese Beatle problem here is becoming increasingly worse. I spray pesticide in the spring a few times but not this time of the year as fruit is ripening. I quit spraying fruit a month or two prior to it ripening depending on the type of fruit. Does anyone have suggestions to control them? I was thinking about a 5 gallon bucket of sugar water to attract them where they would drown.


Follow-Up Postings:

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RE: Controlling Japanese Beatles

What they like best, besides roses, are plum and cherry leaves. THey show up here in July, after the cherries have been harvested. At which point, in a bad year, I spray the trees with systemic insectide that kills on feeding.


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RE: Controlling Japanese Beatles

Roses attack JB's read what work what don't I think take mix thing to work had good control with 60% Sevin.

Here is a link that might be useful: JB


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RE: Controlling Japanese Beatles

Thanks ltilton I will try that once I have the fruit picked. Gator rider I will give the sevin a shot , we use it sometimes on the vegetable garden.


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RE: Controlling Japanese Beatles

Clark...you have to spray later for JB...you just have to. If you are willing to spray in the spring...why not later? Carbaryl (Sevin) is the go-to for JB...it kills them on contact and I think from ingestion as well. It is widely considered one of the safest sprays there is and has a low PHI (I think around 7 days for apples). Carbaryl knocks the hell out of JB like nothing else.
All those other things like traps etc are mostly gimmicks imo.


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RE: Controlling Japanese Beatles

Thanks Appleseed70 I avoid spraying as fruit get s close to harvest to avoid pesticide residues on the product. Afterwards I have no problem spraying. In the spring I spray pre-blossom and post blossom but never in blossom to avoid damaging my pollinators. Those are the two times of the year where I absolutely won't spray.


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RE: Controlling Japanese Beatles

The problem is that killing them after you harvest the fruit may not help at all the following year. They can just as well come in swarms from nearby property.


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RE: Controlling Japanese Beatles

If apples are the problem, JBs are usually gone by harvest time, at least here. Though I don't find them such a problem on apples that I need to spray. The JBs swarm the stone fruits instead.


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