Multirose Concentrate is a good investment to make at the start of the year (much cheaper to buy this way than the ready to use sprays) This kills all the creepy crawlies on your roses and also controls blackspot and mildew.
Resolva Bug Killer Liquid 250ml Concentrate (Contains Lambda-cyhalothrin)
Resolva Bug Killer 1L RTU (Contains Lambda-cyhalothrin) (ROI ONLY)
GS Prune & Seal
Potato Blight Fungide
Nippon Woodlice Killer Powder
Rose Clear Ultra