Well in sterilized vertical farming concepts that is true. Pests are eliminated. Don't even need to supply oxygen the more automated the system is. But this

Well in sterilized vertical farming concepts that is true. Pests are eliminated. Don't even need to supply oxygen the more automated the system is. But this concept (as I understand it) has the plants growing where there are humans present so it is going to be a dirty environment and pests will undoubtedly be a problem that needs to be addressed in some fashion.