How do I caulk where a caulk tube won't fit?

Question

I've got some door moldings that are about 1 inch from the adjacent wall. A caulk gun won't begin to get in there, and pivoting the caulk tube up so it's nearly parallel to both walls still doesn't get the tip close enough to the gap.

How should I apply a caulk bead in this situation? Any good tricks, clever tools, or "this worked well enough for me"?

Rough illustration of the situation:

_{(source: CoSketch.com)}

Answer 1

In addition to DA01's suggestion, there are also smaller tubes of caulk that may be thin/small enough to angle into the casing corner. More costly, but you only need a little (if it fits).

Answer 2

If it's an interior door, I'd suggest not bothering. If you can't easily get the tube in there, my guess is you can't easily see it, so it's probably moot.

If it's an exterior door, two ideas:

1. remove the trim, apply the caulk, re-apply the trim

2. cut a small bit of surgical hose and attach it to the end of the caulk and use that to apply it.