Cyonara 9.7 has a shelf life of approximately 3 years if stored away from extreme temperatures. After you mix the product with water, you should use the mixed solution within 24 hours (do not leave the solution in your sprayer longer 24 hours). We also sell Surrender PesTabs.
Cyonara 9.7, which is microcrystalized, and Cyzmic CS, which is micro-encapsulated, both have the same active ingredient. The main difference is one is small capsules which will last longer outside and the other is crystals of the active ingredient. They are comparable otherwise.
If bees come in contact with an area treated with Cyonara, it is possible that they will die. We do recommend not spraying when the bees are active to avoid killing them.