Is There a Gardener in the House?

Frustrating things happening in the garden this Spring. First off, the recently planted Guava from the nursery had two stalks, one just shriveled up for no good reason (see photo one-shriveled stalk on the left, still healthy looking stalk on the right).

Secondly, after watering two new plants recently purchased from the nursery on the same day and keeping them both in the shade for a week, and watering them on the same schedule, one of them had all the leaves curl up overnight (low temps here are in the 60's, highs about 85). They are not planted in the ground yet, but the roots are in that black plastic stuff with some holes in the bottom. I believe these two new additions are guava and soursop (but not positive) (photo two: comparison of two plants; photo three: closed-up of curled leaf plant; photo four: close-up of still healthy looking plant).

As for the first photo, I don't see any signs in the yard of any animals tunneling/burrowing. Any guesses on to what's going on here? Thank you.

IMG_1407.jpg

IMG_1408.jpg

IMG_1416.jpg

IMG_1417.jpg