my potted mint died in 2 weeks
I am new to gardening and experimenting with herbs. Got some curly mint from OSH along with rosemary and thai basil. all in 2.8 x 2.8" square plastic pots. I left all of them on my kitchen window sill, facing North. I have been watering them once daily. After about 12 days, all of a sudden, my mint died!!? all the leaves got dried up and the stem was also very dried up. so i watered them long and twice daily for 2 days, but it doesn't seem to help.
today i checked them closely and i see very tiny bugs or buglike things (light green)on them.
PS: the roots had come slightly out of the pot.
I live in the bay area in California, zone 9.
please help. any advice is good. is it too much water or too much heat? all my other herbs are doing good.
thanks in advance,