We have purchased about 40 mason bees to help with pollinating our fruit trees and garden this year. Last year the cherry, apple, pear and plum did not do well as most if not all fruit fell shortly after bloom or did not form at all. Also had a problem with peppers and acorn, zuccini & butternut squash not forming fruit (tomatoes did great). As we are rookies in dealing with bees, I did purchase a helpfull book by Dr Margriet Dogterom to help get me started but I have a couple questions.. 1 - Am I on the right track at all here? Will this help with the plants / trees I listed? 2 - How long will the bees be active? Will they be around long enough to be able to pollenate my garden or should I concider releasing more later in the spring? 3 - I got no bees popping out of my cocoons yet : ( I am assuming this is because it hasnt warmed up enough, it hasnt been warmer that 12-13 degrees on any given day, usualy well under 10 degrees. Is this too early to put them out? 4 - Is 40 bee's enough? I understand that I should have about 50% females and am hoping the two houses I put out may attract more to nest as well. Our property is about 1200 sf, all the trees and garden are concentrated in the back half of that. Thanks!