Jon, If the temp is above 90 F. The pollen is most likely no good. Most of us have trouble getting seeds to set when it is hot.
Try collecting the pollen ( and hybridizing if possible) in the morning. Hybridizing in the morning gives the pollen time to activate before it gets too hot. If you collect the pollen in the morning and keep in cool dry place till evening when you hybridize, you may get the pods to set.
FYI, even doing this, I still have many crosses that just will not take. KEEP trying!
