Denise - 3912 Monday, 01 April 2013
Hi Doug I read somewhere years ago that pouring used washing machine water with suds over your roses helped control thrip and makes leaves
lovely and glossy. I have done this on numerous occasions with success with controlling thrip.
I also find garlic spray helps as well. I try to use natural sprays if I can. Hope this helps. It is worth a try.
Gabriela - 6061 Friday, 05 April 2013
Hi Doug. I use Mancozeb bought in Bunnings. There is Mancozeb Plus that not only controls pests but fungus too which means no more black spot. Use it regularly both on foliage and at the root level. Good luck, gab