Hey :) Thoses CD are supposed to scare birds, do you have other goal?
I believe having birds is a good thing to control bugs population. Are you trying to protect your plant form anything else?
Or did you had issue with birds :) ?
Good point. I had read that the cd's would repel whiteflies similar to birds so i added the cds along with yellow sticky paper. whiteflies are now gone so just took down the cds today. Thanks for the tip