Ps!Not sure where you're located but you can get Freeze Dried MealWorms @ Walmart. Try some boiled egg yolk, Nutri Drench is a good suggestion (staceyj) a drop or 2 on the side of her beak or on anything you can get her to eat.
As for tube feeding, there is a thread on it, you can use aquarium tubing, check it out in the forum.
The mealworms at Walmart are in the garden section with the wild bird seed.