Soil solarization under the test conditions in CA appears to offer an effective means of eliminating P. ramorum from
at least the upper layers (top 15 cm) of the soil profile, where most
of the naturally occurring inoculum is located. Efforts are underway to
model the survival of P. ramorum in relation to soil temperature
and moisture. Additional research in 2013 is aimed at understanding
how to maximize the effectiveness of solarization in killing soilborne Phytophthora
species in CA, OR, and WA, and to determine how the presence of crushed
rock on the soil surface affects soil heating. Commercial nurseries in
CA, OR, and WA interested in participating in 2013 solarization trials
are encouraged to contact Jennifer.Parke@oregonstate.edu for further information.
Read more here - COMTF June 2013 newsletter.
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