> In Spain, Clementines are produced in bee free areas established by law,
while in Morocco a grower wishing to plant varieties that are susceptible to
cross-pollination from other citrus varieties must seek out isolated areas
where cross-pollination can be controlled by distance from another pollen
source and bees that seek to collect pollen without discrimination from one
flower to the next and thus cause cross-pollenization. In the tours that I
have led to Spain and Morocco at the request of several of our large citrus
producers I always emphasized the importance of isolation from other pollen
sources when establishing new orchards of Clementine and other type
mandarins in California. Some have not followed that advice and have planted
trees in high-density bee areas knowing full well that pollenization would
be a problem and now want to see all of the bees excluded without paying the
price for the exclusion. 

-- from a letter by Ray D. Copeland, the former Superintendent of the
University of California Lincove Field Station, recognized consultant in
citrus production with Clementine mandarin experience in Spain, Morocco, and
California.

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