you can use advanced ACL.
here is an example.
acl number 3000
rule 5 deny udp destination-port eq 1900
traffic classifier block_udp
if-match acl 3000
#
traffic behavior block_udp
deny
#
traffic policy block_udp
classifier block_udp behavior block_udp
interface GE0/0/2
port link-type access
traffic-policy block_udp inbound