I just planted a rose garden (despite refusing to for many years because we are organic and I did not want to spray anything). A day later I find that they are full of thrips! What to do? I need something that works fast. I went out and cut off all the blooms, bagged them tightly. But, come on, I bought the roses to see the blooms. I know there are beneficial nematodes you can buy, but in previous searches, did not really find the site. Something about hired bugs. Does this really work? Please give me your experiences. I need to get this under control fast before the rest of my yard becomes infested. Any suggestions, please!