Moved to a new house late fall last year and this is my first summer gardening. No gardens at all when we purchased so all of the plantings/beds are new. On Sunday my husband asked me what kind of bug was on my hibiscus. I had not seen it before (i have gardened in west Ottawa for 25+ years) After looking it up on the net I identified it as Japanese Beetle. I looked at my other plants and found it munching on my pole beans, rose, prairie mallow and then I noticed my sandchery - there were many many beetles on it and 80% of the leaves are skeltonized. My neighbour had never seen them before and she has lived in the area for 7 years but said her heavily treed backyard was infested with them. Help - what is the best defence.