Carnivorous plants are alot of fun, but using them for insect control is a bit impractical. Pinguicula and Sarracenia are the easiest and eat the most bugs. my S. leucophylla pitchers are full all summer, but they can suffer from many of the same pests as our cannabis. distilled or r/o water is very important, as close to 0 ppm as possible. over 100 ppm can prove toxic. these plants grow in areas with little or no nutrients, thats why they eat bugs. i like the Dionea but i don't have any in my collection anymore, lost them all in an early frost last year.