Jim ,
   What you describe are pretty promising results . The Apistan strips
should indeed have a prolonged life span if stored cool and dark . Also
these results should indicate to you that , with high ambient temp., you can
reduce the the amount of strips recommended by the product data sheet .
   By no means dose this mean you can increase dosage in lower temps. ,
however , as with all medications or treatments for any animal or insect ,
the dosage can be reduced by appling some logic .
 
Chao ,
Marion L.Bristow
Agriculture Sciences Campus
Universidad de Concepcion , Campus Chillan
Casilla 537
Chillan , Chile
e-mail: [log in to unmask]