Posted by Tom Broome on 6/14/2006, 9:54 pm, in reply to "Phytotoxicity evidence??" --Previous Message--
152.163.100.65
: Hey Tom,
: I have a few revolutas that have
: been grown as bonsai. They are in a
: well drained mix of sharp sand,
: decomposed pine bark and Turface
: (expanded montmorillonite clay). I
: balance it with applications of
: Osmocote w/ minors and your mix. I
: may have, however, exposed the
: plants to excessive levels of
: malithion. The leaves are dark
: green, with uniform "rust"
: colored blotches running along the
: individual leaflets. They are in a
: pattern, radiating from the rachis
: to the tips, terminating into a
: necrotic point. I have even brought
: a plant to a plant pathologist, who
: was baffeled. As a pathology major
: myself, i am pretty sure the spots
: do not resemble a pathogen. The
: plants are all in flush now, but
: they havent fully developed, so I
: cannot tell if the spots will come
: into the next flush. What are your
: thoughts, Tom? I am lost! Thanks.
: Peter Drake
:
We don't have a fungus around here that would look like that, but it is always possible to have something different in a different area. It is also possible it is some sort of damage that you would get from a frost. The most likely thing would be the first showing of a deficiency. I haven't been on for a while, as everyone can see, so maybe by this time, your new flush may show you something. If after it hardens off and the new leaves look the same way, I'd go with the deficiency theory.
Message Thread:
« Back to thread