Hi Gabe,
I looked at your video, to me it just looks like natural leaf aging. Bottom leaves are the first to go. That will be part of your maintenance with this plant, removing the dead outer leaves. How is the temperature in your area right now? Is it still too hot? or Is it slowly cooling down. Plants are in adjustment stage right now on my side, though we are still in some unusual warmer conditions.
Good for you the pesticides worked! I lost a container this summer sadly...oh well..
