Nothing. The sap is the way the tree heals itself and it will be covered in bark eventually.

I brought a kwanza tree, not realizing how delicate it seems to be. Caterpillars, aphid, trunk rot, and other diseases the tree is prone to have makes me now afraid to open the box. I live in SC and it is hot. Can I plant it now or put in a pot until it cools off, if I decide to keep. I do not want any caterpillars crawling around

Since the tree catches so many diseases, is there anything I can do to prevent these critters before they appear or should I send it back since my area has clay and not enough drainage.

Mixing the clay with peat moss, will it soften the clay? how deep should it be planted? can I fertilize as soon i plant it or does this tree have so many diseases that I should send it back. Was this a big mistake buying this tree