I get aphids almost every year (sometimes the brown ones but lately it's been the green ones) and use the soap spray method, all plants every 4 days till no more aphids. I do find my plants (mostly pepper plants are affected) are happiest if I soap them (a spray bottle from a foaming cleanser works wonders with diluted dish soap), let them sit in the sink ten minutes, then give them a thorough rinsing with the kitchen sink sprayer set at a gentle spray. This also tends to get some soap into/onto the soil, which deals with the fungus gnats certain plants who shall remain unnamed seem to perpetuate...
I even soaped and rinsed my African Violets before Xmas when an outdoor pepper plant that I had soaped on its way into the house spread its aphids around anyway. I know it's not recommended to do this with a fuzzy-leafed plant like African Violets, but I dried the crowns carefully with paper towels then turned on the ceiling fan over them and they were dried before they noticed they were wet. The tomato plant I brought in also responded just fine to being soaped and rinsed, I just wonder what self-respecting aphid wants to lick a tomato plant, yuck!
I get aphids almost every year (sometimes the brown ones but lately it's been the green ones) and use the soap spray method, all plants every 4 days till no more aphids. I do find my plants (mostly pepper plants are affected) are happiest if I soap them (a spray bottle from a foaming cleanser works wonders with diluted dish soap), let them sit in the sink ten minutes, then give them a thorough rinsing with the kitchen sink sprayer set at a gentle spray. This also tends to get some soap into/onto the soil, which deals with the fungus gnats certain plants who shall remain unnamed seem to perpetuate...
I even soaped and rinsed my African Violets before Xmas when an outdoor pepper plant that I had soaped on its way into the house spread its aphids around anyway. I know it's not recommended to do this with a fuzzy-leafed plant like African Violets, but I dried the crowns carefully with paper towels then turned on the ceiling fan over them and they were dried before they noticed they were wet. The tomato plant I brought in also responded just fine to being soaped and rinsed, I just wonder what self-respecting aphid wants to lick a tomato plant, yuck!