Pest is a problem outdoors that's why I use buckets I take them out in the morning and bring Ng them in at night.
I Olso did a plant outside on the first of September planted 2 sour diesel and 2 Kali mist lost all 4 seedlings to grasshoppers I tried spraying but the cotyledons where gone I still left them cos I saw some green but they didn't make it.
So yes out side you need to do it manually iff you want good result.
But your two looks mighty fine to me good luck with the 2 times a day watering you do realise they getting bigger more water buy December you will loose some weight that you can put on again with the munchies. Plants just know how to keep the balance.