I asked an expert on pawpaws and he gave the following reply. Sorry I did not save the name of the person with the question. Hope you are interested.

WMILLER at PRISM.CLEMSON.EDU WMILLER at PRISM.CLEMSON.EDU
Mon Mar 22 21:01:00 EST 1993


From:	EUREKA::GRGHRD       18-MAR-1993 12:53:04.16
To:	WMILLER
CC:	
Subj:	PAWPAW POLLINATION

Walker, it is believed by one oldtimer who has grown pawpaws commercially
that putting roadkills in his trees attracts green bottle flies which in
turn pollinate his pawpaws because they have purple colored flowers which
are similar to carrion smelling flowers.  However, research done on pawpaws 
in Illinois and on related species in Israel show that pawpaws are limited
by natural pollinating agents.  Their studies show that nitilid (sic?) 
beetles are the most common pollinators.  Flies are not important pollinators
He can forget the roadkills and plant at least 3-4 varieties of pawpaw and
either hand-pollinate or encourage beetle visitation by eliminating 
pesticide use and planting his trees adjacent to wooded areas where these
beetles may live.    Greg



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