Crabgrass Preventer

Material A
Dry Lawn Fertilizer. This is the main type of crabgrass preventer. It works to kill several types of weeds and to prevent crabgrass from sprouting by properly fertilizing the grass.

Disposal: Dry lawn fertilizer must be taken to a drop-off depot for proper disposal, as it is considered household hazardous waste (HHW).

Best Alternative
The best alternative would be to avoid using this entirely. There are many safer options for protecting your lawn and ensuring it grows healthy. Use organic fertilizers and make sure to water often.