72 FUMIGATION FOE THE CITEUS WHITE FLY. 



Page. 



Scale, black, control by fumigation 7 



"brown." (See Lepidosaphes beckii.) 

 cottony cushion. (See Icerya purchasi.) 

 Florida red. (See Chrysomphalus ficus.) 

 " hard." (See Lepidosaphes beclcii.) 



insects, losses prevented by fumigation 60-62 



"oyster-shell." (See Lepidosaphes beckii.) 

 purple. (See also Lepidosaphes beckii.) 



control by fumigation 7 



red, control by fumigation 7 



Season of year favoring fumigation 10-11 



Shedding of foliage in fumigation 52-5S 



Shrinkage of tents 17-18, 32 



Spraying, cost compared with fumigation 62-63 



Sulphuric acid for fumigation, cost 58 



handling, and protection from moisture 25 



purity required 25 



Sweet bay. (See Magnolia virginiana.) 

 Syringa sp. (See Lilac.) 



Table of dosage for fumigation 66-68 



Tangerine fruit as affected by fumigation 54 



trees as affected by fumigation 52 



Tannin, use in mildew-proofing fumigating tents 19-20 



Tents, bell, construction 15 



dosage requirements 49-50 



method of handling 29 



box, construction 15 



dosage requirements 54 



care 19-20 



construction 15-19 



cost 56-57 



hoop. (See Tents, bell.) 



marking for estimating dosage 31-35 



mildew-proofing, oiling, and painting 19-20 



sheet, dosage requirements 40-49 



method of handling 27-29 



shrinkage 17-18, 32 



styles 14-15 



Time required in fumigation of grove 38-39 



Tray, commissary, for fumigation 22 



Trees as affected by fumigation 51-54 



measurements in fumigation 30-35 



regularity of setting favorable for fumigation 14 



size when tented, methods of computation 39-40 



sizes most favorable for fumigation 14 



small, in grove, fumigation against white fly 54 



nursery, fumigation against white fly 54 



Uprights for handling fumigating tents 20-21 



Viburnum nudum, food jjlant of white fly 10 



White fly, appearance of larvae and pupae when destroyed by fumigation 50-51 



citrus. {See White fly.) 



control by fumigation, history 7-8 



food plants 10 



