Bahia grass seed is susceptible to insect infestation because it is harvested in early summer when insects are quite active. When grass seed is harvested from a large field, it is inevitable that a few insects are picked up along the way. Seed may also be vulnerable to infestation when stored. Kill the insects as soon as possible to prevent extensive seed damage.
Dry moist or freshly-harvested seed in a sealed container with an equal amount of seed and silica gel (by weight) for seven days.
Place the sealed jar with the seeds and silica gel in the freezer for at least 72 hours, and up to seven days. The freezing temperatures will kill any insects in the Bahia seed.
Remove the healthy, undamaged seed from the silica gel and place it in a separate container. Place any dead insects in a sealed plastic bag and throw them away. Save, dry and re-use the silica gel, if desired.
Sift through the Bahia grass seed and remove any seeds that are partially eaten or empty.
Store the seeds as usual, or spread the seed out and allow it to dry for 24 hours before planting it.