An agricultural item comprising a biodegradable polyhydroxyalkanoate copolymer
comprising two randomly repeating monomer units. The first randomly repeating monomer
unit has the structure:
##STR1##
wherein R1 is H or a C1-2 alkyl, and n is 1 or 2; and
the second randomly repeating monomer unit has the structure:
##STR2##
wherein R2 is a C3-19 alkyl or a C3-19 alkenyl.
At least 50% of the randomly repeating monomer units have the structure of the
first randomly repeating monomer unit.
