Want to try the cup method to help combat thrips and midge this year. I hear recommendations for both blue and yellow. Is one preferable, or about equal? I have access to both via Amazon. For those who have had success, how do you set your cup up? Do you hang them near the bushes, directly beside, or attach them to the branches themselves? I don’t want to accidentally draw the little demons TOWARDS my bushes unintentionally! And we are just talking spraying the cups inside and out with PAM, right? Sorry for all the questions. I am excited to try non-chemical control options.