Ask-a-Dave's-Gardener: Philodendron Dying Fast! Please help!, 4 by LkP

LkP wrote:
A week or so ago, this philodendron was healthy and beautiful. It wilted slighted, which it does when thirsty, so I watered, but it did not come back upright. Instead, it continues to wilt, yellow, and is now losing leaves. There are areas that look almost scorched. There are no bugs or webs that I can see, however, I noticed a great many eggs in the soil.these are small and white. They are not whiteflies, as they do not move when I water. A new leaf has popped and is not yet affected. It's been 2-3 days. Does anyone know what this could be and how I can treat? I am losing this gorgeous plant fast. I prefer organic treatments.