Dear Jennifer:
Many thanks for being bold and contributing pictures to
the pests from which we all can learn a lot. The Phaedranassa is virused.
Virus in Phaedranassa, Eucrosia, Eucharis, Stenomesson, Griffinia and
Eustephia shows as longitudinal ridges (those leaves are perfectly flat if
healthy), besides the mosaic stripes. For this ( to show the ridges) an
oblique picture (one taken at an a low angle) is better than one taken
perpendicularly.
As for the Gladiolus the stripes look like thrips attack.
Thrips are very dangerous and look like very minute black flies. Their
attack is particularly evident in Gladiolus flowers (like silver patches).
One thrips species, Frankliniella occidentalis, is much feared as it is
extremely efficient in spreading virus among nursery stock. A picture of the
same Gladiolus in full sun would be useful.
All the best
Alberto
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