THE RED SPIDER ON THE AVOCADO. 3 



him in 1914 by W. W. Yotliers, of Orlando, Fla. The writer has found 

 it attacking both the West Indian and Guatemalan varieties of 

 avocados {Persea gratissiina) ^ being particularly injurious to the 

 more tender West Indian types. It occasionally causes considerable 

 injury to the mango {Mangifera indica) and in many sections of 

 northern Florida to the camphor and Australian silk oak {GreviUea 



Fig. 2.- 



-Defoliated avocado tree during midwinter, tlie result of attacks on 

 foliage by the red spider. 



rohusta), to the foliage of which it imparts the same discoloration 

 that it causes to the avocado. It has also been collected in Florida on 

 a species of eucalyptus {Eucalyptus sp.). In addition to these host 

 plants, the writer has at times collected the red spider on Terminalia 

 arjuna^ Annona squamosa, Cucumis sativus, and Icacorea paniculata — 

 the latter a plant growing quite commonly in the hammocks of south- 

 ern Florida. 



