It has been said over and over that an ounce of prevention is worth a pound of the cure. Prevent outbreak first and foremost then treat if necessary. Animals and the elements are problems faced by outdoor growers, however everyone is put to battle with bugs at some point or another. Pests are a constant threat to any grower be it farm crops, a vegetable garden, or indoor growing.
No matter the preventative measures you engage in, a pest population will infiltrate your crop eventually.