Heck if I know. This response is really just a lead in for my
next story:
A while back I got some D. schizandra via a trade. It grew
quickly in my indoor terrarium, but then started putting up deformed
leaves, and it began looking unhappy. After a month or more of
playing with different watering schedules to no effect, I looked
closely at the plant and noticed bloated green bugs sucking the
juice out of the plants. So I hit the plants with some diazanon.
I can now assert that a 1/2 STR spray of diazanon doesn't kill
D. schizandra either, although of course you shouldn't use oil
based Diaz. The plant did look a little dried out for a couple
of days, but with the bugs gone the plant is coming back. What's
more interesting is this: I have my plant in peatmoss, with a top
dressing of live spahgnum, in a clear plastic cup. What's neat
is that the roots are hitting the edge of the cup and moving up
above the soil, where they bud into plants. I now have about 3
leeeeetle plants, each about the size of a pin head, growing. I
hope the bugs don't get them. I'm indepted to Thomas Johnston
for explaining this method of propagating this species. It's
much faster and more reliable than the leaf cutting method.
Robert