Research has disclosed better ways to care for trees and forests. Above, left: An 

 entomologist inspects hybrid of Jeffrey and Coulter pines exposed in cage to a 

 weevil that is particularly destructive to young Coulter pines. The cage allows him 

 to assess results quickly. Above, right: At Pike Bay Experimental Forest in Minne- 

 sota a geneticist finds that Scotch pines grown from seed from northern Europe resist 

 cold better than stock from central Europe. Below: The Coweeta weirs, Southeast- 

 ern Forest Experiment Station in North Carolina, yield useful facts on stream flows 

 from watersheds on which different amounts of vegetation have been removed. 



