I recently bought AzaGuard but I don't know how effective it is on caterpillars as it supposedly prevents insects from molting from one life stage to another and if caterpillars don't molt while doing their damage, it might not work. It works great on aphids, etc and when I asked my local ag supply for a systemic that won't kill me, this is what they recommended. A little goes a long way. An ounce makes ~10 gallons of spray. I still use Bifenthrin (non-systemic pyrethroid) for arachnids. Just checked the label and 'lepidopterous larvae' is on the AzaGuard label so it should work. Tim Could u recommend which systemic chemical is safe for Crinums, ? On 21 February 2015 at 12:48, Alberto <ezeizabotgard@hotmail.com> wrote: > The Amaryllis caterpillar is a famous pest of warm climates. It is > intriguing why the use of a systemic insecticide in susceptible plants > is never mentioned. > > > > _______________________________________________ > pbs mailing list > pbs@lists.ibiblio.org > http://pacificbulbsociety.org/list.php > http://pacificbulbsociety.org/pbswiki/ > -- Steven : ) Esk Queensland Australia Summer Zone 5 Winter Zone 10