[pineapple]

I have a pesticide license but haven't been able to figure this out.

If I use Merit (Imidicloprid) granular systemic insecticide on roses to deter sucking/chewing insects and Japanese beetles, will it poison the bees?

[Nebraska]

Bayer of course says no link what so ever...

The beekeepers think otherwise..

Here are few links that I found...

http://www.google.com/search?q=Imida...&start=10&sa=N

http://www.pan-uk.org/pestnews/pn40/pn40p17c.htm

http://www.bayercropscience.co.uk/ou...ec=288&con=477

[Uncle Albert]

Thats a tough ? Contact or ingestion?experts still dont know all the answers. Imidicloprid is under a alot of heat here in N.Y. Target organism not deterant is the law here. Try a organic remedy. grinding up some Japanese Beetles and some marigolds can produce a very strong Pyrethrin. Best answer on this ? always think IPM(intergrated pest managment) tough call when Bees are involved.

[pineapple]

Ha! I can't really set up shop to grind Jap Beetles for my company's clients.
Also Pyrethrim is a deadly poison, especially to pets.

[GLAN]

My use for Merit has always been for grub control in turf

But as you intend to use.....
"If I use Merit (Imidicloprid) granular systemic insecticide on roses to deter sucking/chewing insects and Japanese beetles, will it poison the bees?"

My thinking is a systemic brought into the plant via root system and distributed through the plant.......then at what point in the plant of a rose does the Merit stop? Does it go all the way through to pollen/nectar?

Personaly......I am kinda doubting it will.

[Uncle Albert]

This may aid in the search for an answer.. contact Bayer 1-800-842-8020 or protect your turf . com.... P.S. never mind.