ON several occasions during the summer of 1960, freshly collected fronds of Enteromorpha intestinalis Link failed to liberate any swarmers (gametes and zoospores) when placed in sea water and ...
In August, a soilborne plant pathogen not previously seen in the U.S. was detected at two Oregon nurseries. The discovery of Phytophthora austrocedri stateside prompted a swift response from the ...
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