What was disastrous economic blockade of england by napoleon called?

The answer is  Continental System or Continental Blockade. It was enacted on November 21, 1806 by Napoleon as a step against the blockade of the French coasts started by the good GB in could 1806. It forbade all quite commercialism relations between   United Kingdom of Great Britain and Northern Ireland and every one European countries allied with or dependent upon France. however its effectiveness was restricted by British management of the ocean, that allowed British merchants to import product into those countries. On the long vary this economic war caused additional damages to France and its allied countries than those caused to nice GB, and light-emitting diode to a general discontentment among and a sequent weakening of the Emperor Coalition.  

In the midwest because it has more moderate climate than the north or south west which makes farming far easier.