>> I forgot to mention -- fire-ants sometimes do a pretty good job of cleaning
>> out wax-moth larvae from dead-out boxes.  Just set the box on an ant-hill.

        What a handy method of biological control!
        Unfortunately  :-], according to a poster claim by a commercial
Crown Research Institute within the current NZ National Beekeepers' Assn
annual confab, NZ is the *only* country in which the fire-ant has been
exterminated.
        No need to reassure me we didn't make a mistake by exterminating
them.   I congratulate those who did it, and only wish similar effort had
been made on a couple more recent introduced pests.

R