National Geographic : 1988 Jul
The epidemic spreads Island-hopping across the northern Caribbean and the Gulf of Mexico, lethal yellowing appears undeterred by such natural barriers as open seas and prevailing winds. Though the disease was first reported in Jamaica, evidence now suggests that LY may have struck earlier in the Cayman Islands and perhaps Cuba. Scientists calculate that on land the disease spreads as fast as 1.3 miles a month. MEXICO NGSCARTOGRAPHIC DIVISION:DESIGN:JOHNW. LOTHERS;RESEARCH:MARGUERITEB. HUNSIKER,ANNR. PERRY;PRODUCTION:VICTORIAMcANALLEN;MAPEDITOR:JOHNT. BLOZIS What's Killing the Palm Trees?