We have had a Magnolia Tree planted in our yard for the past 6 years and for the first time we have noticed a large amount of flies landing on the leaves of the tree. I noticed a shiny substance on the leaves and the flies seem to be drawn to it. My question is, do you have any ideal what may be causing the flies to swarm on the Magnolia tree this year or what the substance might be? Thank you. Regards, DJ
Please see attached picture. Could this be caused by the insect called "scale" as was listed above?
I started applying some Carbaryl to the tree and noticed the tree was covered with these.
Please advise and let me know if I need to do something else to prevent this from having this issue next year.