Prime Source Imidacloprid 2F T/I is not labeled for spiders. We would recommend something like Onslaught FastCap Spider and Scorpion Insecticide instead. You may also want to take a look at our Spider Control Guide for more information.
Prime Source Imidacloprid 2F T/I is not labeled for bagworm control. A product like Bifen I/T would be a better option. Keep in mind that treatments must be done before the bags form in order to be effective. After the bags have formed, there is little you can do for control other than to physically remove them. You may want to take a look at our article on Bagworm Control for more information.
Unfortunately, Prime Source Imidacloprid 2F T/I is not labeled to treat for fire ants. We would recommend Extinguish Plus Fire Ant Bait which can either be broadcast or used to treat the individiual mounds.