use warnings;
use strict;
use XML::Twig;

my $xmlstr = <<EOF;
<TREES>
 <APPLE>
  <TYPE id="1001">Scarlet</TYPE>
  <TYPE id="1002">Red</TYPE>
  <TYPE id="1003">Gold</TYPE>
  <TYPE id="1004">Fuji</TYPE>
  <TYPE id="1005">Scarlet</TYPE>
 </APPLE>
 <PEAR>
  <TYPE id="1001">Bradford</TYPE>
  <TYPE id="1002">Cleveland Select</TYPE>
  <TYPE id="1003">Aristocrat</TYPE>
  <TYPE id="1004">Autumn Blaze</TYPE>
 </PEAR>
</TREES>
EOF


my $twig = XML::Twig->new(twig_handlers => {APPLE => \&apple});

$twig->parse($xmlstr);

sub apple {
    my ($t, $elt) = @_;
    for my $type ($elt->children('TYPE')) {
        print $type->att('id'), "\n";
        print $type->text(), "\n";
        print "\n";
    }
}

__END__
1001
Scarlet

1002
Red

1003
Gold

1004
Fuji

1005
Scarlet
[download]

Use warnings too.