I have a nursery stock Austrian Pine. Over the last 2 months, the needles started to yellow. At first I thought it was getting too much water, so I changed its location. It has continued to yellow. With my rookie experience, I thought it might be because it was still in the the nursery pot with the field soil wrapped in burlap. As I started the repot process, there were bugs all over the burlap in the soil. They were black, almost looked like very large ants. As I slowly scraped the soil away I noticed aphid issues on some of the large roots. Also looked like there were eggs.
My two questions are…
- Is my effort in vain?
- Is there a systemic to treat the aphids?