1)
Why will you not harvest?
1.
Malbim: There will be a curse also in Peros of the land and trees.
2)
Why will you not anoint with oil?
1.
Malbim: Enemies will consume it.
3)
Will you press wine?!
1.
Radak: It is called Tirosh for in the end it will be wine. This is like "va'Tachani Kamach" (Yeshayah 47:2).