Question
Can i use Sevin-5(ready-to-use) 5% dust on spider mites?And how do i use it on venus fly trap and where can i buy insecticide for venus fly trap besides Lowes?

Answer
I've never used Sevin dust on spider mites, so I can't say. I use acephate (a water soluble systemic insecticide) and Pentac (a "wettable powder" miticide) mixed together, which is very effective against spider mites but like most insecticides must be sprayed several times over the course of 2-4 weeks in order to eradicate the spider mites because of rapid reproduction, maturity and egg laying, and the delayed and staggered hatching of the eggs.

My business partner Matt uses Avid and Stirrup M to attract and kill spider mites.

I buy my acephate online, here--

http://store.doyourownpestcontrol.com/Product/Acephate-75-SP--1-lb

And sources for Avid and Stirrup M can be found with a quick internet search.

I use from 1 to 2.5 teaspoons of acephate per gallon of water, and with the miticides added to the solution as well the mixture is very effective.

Good luck.