The right hand column DIRECTIONS FOR USE It is a violation of Federal law to use this product in a manner inconsistent with its labeling. Read all Directions for Use carefully before applying. SHAKE WELL BEFORE USE. AVOID FREEZING
Of course the Internet being the internet there is this anecdotal evidence:
The link below contradicts the "information" about heat mentioned above. DiPel and Thuricide are the trade names that contain spinosad and both warn against storing at high temps.
Dipel is Bacillus thuringiensis subspecies kurstaki...It is good for thrips though.