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Durgan · February 20, 2014

Probably most of the beetles encountered do not mature in your own yard. The beetle does much damage to my grape vines. I keep them under control by flicking into a pail and use DE with marginal success, but it makes me feel better.

Grackles and blackbirds are the grub eaters and anything to encourage is beneficial.
http://www.durgan.org/URL/?HKSUW 17 July 2013 Japanese Beetle
The Japanese Beetle (Popillia japonica) skeletonizes the leaves of my grape vines. I have also seen a few on the potato plants in small numbers. They appear every year, certainly over the last three years.This year they are rather sparse and appear ill fed. My local control is to flip them off the vines into a pail of water, or simply squash between thumb and forefinger,or shake the vines on a windy day and they disappear.They are poor flyers.The damage is acceptable if they are not left to feed. They can skeltonize the grape leaves in an afternoon, since they are often in large numbers. Fifty to one hundred is not uncommon. Birds eat many when in the white grub stage.

http://www.durgan.org/URL/?NCPOI 26 June 2012 Japanese Beetle (Popillia japonica)

February 20, 2014	#20
Durgan Tomatovillian™ Join Date: Feb 2013 Location: Brantford, ON, Canada Posts: 1,341	Probably most of the beetles encountered do not mature in your own yard. The beetle does much damage to my grape vines. I keep them under control by flicking into a pail and use DE with marginal success, but it makes me feel better. Grackles and blackbirds are the grub eaters and anything to encourage is beneficial. http://www.durgan.org/URL/?HKSUW 17 July 2013 Japanese Beetle The Japanese Beetle (Popillia japonica) skeletonizes the leaves of my grape vines. I have also seen a few on the potato plants in small numbers. They appear every year, certainly over the last three years.This year they are rather sparse and appear ill fed. My local control is to flip them off the vines into a pail of water, or simply squash between thumb and forefinger,or shake the vines on a windy day and they disappear.They are poor flyers.The damage is acceptable if they are not left to feed. They can skeltonize the grape leaves in an afternoon, since they are often in large numbers. Fifty to one hundred is not uncommon. Birds eat many when in the white grub stage. http://www.durgan.org/URL/?NCPOI 26 June 2012 Japanese Beetle (Popillia japonica)