FUMIGATIOISr OF ORNAMENTAL GREENHOUSE PLANTS. 



13 



Table I.- 



-PlantH and insects fitmUjated v:itli Tiydrocyanic-acid gas in gree)i- 

 houscs — Continued. 



Name of plant. 



Rate in 



ounces 



per UOOO 



cubic 



feet. 



3 

 



a 



i 

 ft 



w 



d 

 3 

 (~> 

 ft 



i 







Infestation. 



Results of treatment. 



o 



M 



1,- 



IE 



o o 



On plants. 



On insects. 



Aucuba japonica 





5 



1 

 1 

 1 



3. 

 1* 



66 



77 

 68 



66 

 60 





No burning... 

 do 





Do 







Do 





do 





Avocado, see Persca. 

 Azalea indica 





do 





Azalea sp 



i 



Thri^s 



do 



95 per cent killed. 

 100 per cent killed. 



Do 



Azalea lace- 

 wing. 



Azalea Eno- 

 coccus. 



do 



do 



do 



Do 



J 



""5" 

 1? 



'"n 



1 

 1 



a 

 1* 

 1 

 1 

 1 

 1 



1 

 1 

 1 



] 



60 



55 

 L2 



50 per cent killed. 



Do 



Do 





do 





Do 







Slight burning 

 Slight burning. 



No burning 



do.. 





Bamboo 





73 

 60 



r.5 







Banana 



a 







Do 







Basanacantha sp 



73 



60 

 64 

 60 

 60 



5.8 

 58 

 66 

 60 

 58 

 56 

 66 

 77 

 60 

 58 

 56 

 58 

 64 

 56 

 60 

 66 

 77 

 62 

 74 

 66 

 77 

 62 

 74 





Severe burn- 

 in,';. 

 No burning. . . 

 do 





Begonia argenteogutiata 



Do 



1 



i 



3 



i 



3 



Orthezia 



70 per cent killed. 



Do 





do 





Begonia diadema 





do 





Do 





do 





Do ; 



! 1 



5 ? 





do 





Begonia erfordii 





do 







* 

 h 

 3 

 X 

 I 



i 



1 

 -5 

 3. 

 i 

 1 



3 



1 



J 

 X 



i 

 I 



X 

 X 

 X 



"i} 



n 

 1? 



'"n 



1? 

 5 



"5" 



"f 



5 



'"n 



a 





do 





Do 





do 





Do . . 





do 





Begonia me tallica . ... 





do 





Do 





do 









do 





Do 





do 





Do 





.....do 





Begonia saundersoni 





do 





Do 





do 





Do. 





do 





Do 





do 





Begonia (Leopard) 



Do. 





do . . 







do 





Begonia (Lorraine) 



Do 





do 







do ... . 





Begonia (Rex) . 





do 





Do 





..:..do 





B erberis rehderiana 





do 





Do... . 





do 





Berberis thunherqii . .. 



Aphids 



do 



Slight burnin;:. 

 do 



100 per cent killed. 



Berberis vulgaris 





Do. 



Berberis sp 





73 

 62 

 74 

 58 

 60 

 56 

 73 

 73 



73 



52 





do 





BftllaiinnTin. 



h 

 h 



X 



I 

 1 





No burning... 

 do 





Do. 











do 





Do - 





do 





Do 





do 





Bradburya 





Slight burning. 

 Severe burn- 

 ing. 

 Slight burning. 

 No burning... 

 do 





Bromeliasp 









Bunchosia sp 









BwiMSsp. (boxwood) 









Do 









Cactus.. . . 



i 



3 

 1 

 I 



70 

 08 

 64 

 76 

 66 

 55 





do 





Do.. 





do 





Calla lily 





do 





Do 





do 





Do 





do 







I 





do 





Do 





do 









a 



52 

 55 





do 





Camellia sp 



a 





do 





Do 





do / 





