there's not too many pests, disease or damage in my lawn where i live, but i looked close and found some. what are these? will they go crazy once i plant my lettuce? ive had success with a lady bug house in a different location before, should i build one? or a house for another helpful bug? i picked lettuce to start a farm with because it seems profitable and simple and i have enough time to get a harvest in and think about what i learned over the winter. hope you guys have some tips for me! thanks!