Current field window / October
OCTJoro Season: Adults and Egg Sacs
Large adults remain visible while mating and egg-sac activity begin to shape the next generation.
What to look for
- Changes in body size and coloration
- Web placement and expansion
- Multiple spiders living close together
- Male activity near female webs
- Egg sacs or newly emerged spiderlings
The yearly cycle
JanWinter WatchFebEgg Sac SeasonMarWaiting for SpiderlingsAprEarly EmergenceMaySpiderlings on the MoveJunJuvenile GrowthJulWebs Getting BiggerAugGrowing FastSepPeak Joro SeasonOctAdults and Egg SacsNovLate-Season JorosDecEgg Sacs Tell the Story