more pesticides, aphids and CP

Randy Lamb (Rlamb@hypertech.yknet.yk.ca)
Mon, 12 Feb 1996 22:24:04 +0000

I wanted to follow up my comments yesterday in CP Digest 619 and re-stress a
few points before someone acts in haste and loses a CP or two.

> Remember to try your spray on a test plant first, in case
>you are using a product with other undesireable ingredients such as any
>insecticidal soaps or fatty acids which can cause problems. "Piperonyl
>butoxide" is only a synergist, is safe on CP, and will be present in most
cases.

Always check the label to confirm what the active ingredients are, and what
their concentrations are. The 0.02% pyrethrin product I mentioned
(Schultz's) has been very successful for me for several years now on all
Sarracenia, especially this time of year when there may be aphids building
up numbers on fresh pitcher shoots. (I really hate deformed pitchers, don't
you?)

>There is a law about labelling insecticides so the information
>must be there somewhere.

True! In Canada it's law under the Pest Control Products Act (PCPA) so the
information is on the label somewhere, probably in VERY small print. Use
reading glasses or a magnifying glass (seriously) if your are far sighted.
The ingredients are listed.

>repeating the spray to catch any eggs which hatch (eggs are not affected).

Remember to folow the life cycle of the pest; know your enemy. Eggs are
usually not affected by pyrethrins (ie. aphids and mites), and they will
hatch a few weeks later after the pyrethrin has worn off. Monitor your
plants closely for more aphids a month and 2 months down the road in case
you need to respray.

>next, but it definitely contained Pyrethrum. I sprayed it on some
>Drosera Capensis seedlings (I wasn't prepared to risk my Cuneifolia)
>and within 3 hours they all died. Funny, the bugs survived :-()

I haven't tried pyrethrin products on all Drosera and Pings so use caution
and try it only on one plant first in case you have a more sensitive species
to spray, or your spray has a deadly additional ingredient as mentioned
above. Ingredients and formulations may differ from country to country!

Use caution and care with pyrethrins as with all pesticides, no matter
how safe.

Randy.