I need a lot of help with my plumerias. I have been growing plumerias for one year so I’m still learning. I have 25 plumeria plants. my plumeria started to go into dormancy around October 2024, I noticed a lot of black and white tiny flies. I wiped every leaf top and bottom, stems and main stalks with neem oil and thought I had gotten rid of these annoying tiny flies. A few weeks ago as my plumerias were coming out of dormancy I notice the tiny black flies were back and multiplying rapidly. I have sprayed the plants and soil with neem oil, a couple of times, but the flies and still multiplying? I have so far taken 7 of my plumerias outside to removed all the potting mix from the plant to include washing the roots. And clean the pots. I have Re-potted the plants in new potting mix and watered them. The 7 plants I are outside to separate them from the other 18 plants that are in my sunroom I still need to clean and re-pot as well as spray with neem oil. What is the most effective way to get rid of the tiny flies and ensure My plumerias don’t get infested again? I appreciate any advice you can give me.
I need a lot of help with my plumerias. I have been growing plumerias for one year so I’m still learning. I have 25 plumeria plants. my plumeria started to go into dormancy around October 2024, I noticed a lot of black and white tiny flies. I wiped every leaf top and bottom, stems and main stalks with neem oil and thought I had gotten rid of these annoying tiny flies. A few weeks ago as my plumerias were coming out of dormancy I notice the tiny black flies were back and multiplying rapidly. I have sprayed the plants and soil with neem oil, a couple of times, but the flies and still multiplying? I have so far taken 7 of my plumerias outside to removed all the potting mix from the plant to include washing the roots. And clean the pots. I have Re-potted the plants in new potting mix and watered them. The 7 plants I are outside to separate them from the other 18 plants that are in my sunroom I still need to clean and re-pot as well as spray with neem oil. What is the most effective way to get rid of the tiny flies and ensure My plumerias don’t get infested again? I appreciate any advice you can give me.