Sounds more like aphids to me. Roses are certainly prone to white mealy bugs. The 鈥渂right white鈥 is what convinced me. Mildew isn鈥檛 typically bright white but the infuriating little critters definitely are.
If it鈥檚 them, alcohol will kill them only if it actually touches them. Neem will repel them. Most commercial pesticides are useless thanks to the typical resistance. I knock them off using water pressure and then use Neem to keep them off. Repeat as needed, at least 3 times since they鈥檒l also dig into the soil plus you鈥檙e dealing with the juveniles and eggs.
If it鈥檚 a small houseplant I鈥檒l pick them off or kill them individually with isopropyl alcohol. Again, retreat as necessary and keep in quarantine. The awful things can lie in wait without a plant to feed on for a long time so be careful about the site and disinfect.
Sounds more like aphids to me. Roses are certainly prone to white mealy bugs. The 鈥渂right white鈥 is what convinced me. Mildew isn鈥檛 typically bright white but the infuriating little critters definitely are.
If it鈥檚 them, alcohol will kill them only if it actually touches them. Neem will repel them. Most commercial pesticides are useless thanks to the typical resistance. I knock them off using water pressure and then use Neem to keep them off. Repeat as needed, at least 3 times since they鈥檒l also dig into the soil plus you鈥檙e dealing with the juveniles and eggs.
If it鈥檚 a small houseplant I鈥檒l pick them off or kill them individually with isopropyl alcohol. Again, retreat as necessary and keep in quarantine. The awful things can lie in wait without a plant to feed on for a long time so be careful about the site and disinfect.