| I live in Burlington and have a garden with 15 rose bushed and 3 ornamental fruit trees. I have had almost no JBs this year I have had years when they were bad. I have tried traps and have used Milky Spore. I still think the best thing is hand picking with a bucket of hot water with dish soap I hold the bucket under the beetles and nudge them off. I still have lost patches of grass to JB grubs. The turf dies as they eat the roots I pull it off to expose them and pick them up and throw in a similar bucket. I listen to this garden show from Chicago. Link below. Someone asks a beetle question (like your's) and the horticulturist pooh pooh's traps and milky spore. The house I work at in Princeton has over 100 rose bushes and the gardener has 9 traps near the bushes. There are loads of beetles on the bushes. He also sprays Sevin like it is water and I don't see any bees in the garden. My point is that there is no silver bullet. For me black spot is a worse rose affliction. Best wishes. |
Here is a link that might be useful: Focus 580
