Bui. 821, U. S. Dept. of Agriculture. 



Plate I. 





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A Eureka Lemon Tree Typical of Nonheated Orchards. 



This tree shows excessive defoliation caused by the low temperatures and strong winds during the 

 winter of 1912-13. A comparison with Plate II shows the relatively greater injury done to Eureka 

 than to Lisbon trees in the unprotected orchards. Photographed in Januajy^ 1913. 



