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The Constant Gardner Blog Index
August 13, 2007
Japanese beetles

After several years of reduced activity by Japanese beetles, they seem to be back in profusion this year.

They have eaten the leaves off our Harry Lauder's Walking Stick, are feasting on the raspberries – although we have picked more than 50 pints, so we got our share – and are into the hops, the roses and the asparagus.

The beetles showed up late this year, maybe because of the cool weather, but when they hit, they hit in force.

I hand-picked a little early, then went away for a while, and was inundated when I got back.

A parasite – recognizable by a white dot on the beetle's back – has been introduced, and I thought it was reducing the population, but maybe not so much this year.

Milky spore put on your lawn is supposed to kill the beetle grubs, but will work only if everyone in the neighborhood uses it.

Japanese beetle traps kill a lot of beetles, but many people believe that they attract more beetles to your property, so you are no better off than without them.

I'm still pulling for the parasite.

Posted at 04:50 PM

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Comments

Can you send me a picture of the Beetles, I'm not sure who is on my Rose.

Posted by judi
August 15, 2007 07:36 PM

Gasoline is way too toxic to use for drowning Japanese Beetles. All you need is water with a couple of drops of dish detergent.
Also, remember not to kill the beetles that have white eggs on their back. Those have been attacked by a parasite that will hatch and kill them. You want those to live and kill more beetles next season. The parasite is the Winsome fly. You can see pictures of the eggs at the web page:bugguide.net/node/view/5387
In my garden the parasites have reduce damage on my wild roses by 80 - 90 percent!

Posted by Gary Fish
October 1, 2007 10:26 AM

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Tom Atwell has written the Maine Gardener column in the Maine Sunday Telegram since the spring of 2004. He has worked at the Press Herald/Sunday Telegram since 1974, about the same time he started gardening with any seriousness.

He gardens with his wife, Nancy. She not only is the better gardener of the pair, but also knows the botanical names of plants. They have two grown children and three grandchildren.

Tom was born in Skowhegan, grew up in Farmington and graduated from the University of Maine with a BA in journalism. His goal each year is to have continuous compost from his three compost bins, continuous bloom in his low-maintenance garden and more fruits and vegetables on his family table than the garden pests eat in the field.



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