I have certainly made the mistake of using too heavy a dose of Orthene on Sarracenia: and the result is deformed/distorted pitchers. The plant eventually grows out of it. We have gone back to the more expensive and labor intensive use of topical sprays, namely Talstar. It really works on all pests from those pesky submarine mealybugs that attack the roots to thrips and spider mites.
How are the saved rubras from Crestview doing? Michelle and I were there in April to see the purp venosas in bloom right next to that location, but they were under several feet of dirt and new homes. (not that it makes any diff anymore, but the purps grew in a bog on the west side of the creek that runs north-south to the west of the rubras).