White Fly

[Jeff Zembry]

UGH!!!  Whiteflies on fuschias....Here's what I can tell you.  

Sticky yellow paper will provide pretty much no control.  It is great
for monitoring the whitefly population, but will never be able to catch
all the nasty little critters.  

Soaps, on the other hand, are fairly effective.  As you probably know,
soaps work by suffocating the insects.  This will work against the
adults, but will have no effect against the eggs.  So, for soap to
control an established, egg laying population, you will have to use it
as often as every three days for up to a couple of weeks.  This will
insure that you kill each generation of whitefly as it hatches, and
before it can lay more eggs.  

There are also some other, more toxic, chemicals that are very effective
against whiteflies, if you have access to them.  One is called
"Marathon".  This is a systemic insecticide.  It is applied to the soil,
and is taken up by the roots, so when the whitefly munches on your
plant, he also gets a good dose of Marathon to boot.  (This is also
particularly effective against aphids, which is another problem pest for
fuschias)  Another chemical is "Pyrigro".  This one is sprayed on the
plant, and kills both adults and eggs.  There are many other chemicals
that work against whiteflies, but those are the two that have worked
well for me.