64 



The Bulletin. 



Control. 



Preventives. — It is quite evident frorri the statements made above 

 that the tobacco farmer should avoid planting tobacco and cabbage 

 close together. Or if it is necessary to plant the two close together, 

 great care should be taken to see that the Cabbage Looper is kept 

 under control on the cabbage by the use of arsenates. 



Remedies. — Either Paris green or arsenate of lead, as recom- 

 mended for Horn Worms (page 30), may be used successfully against 

 this pest. 



Tree Crickets. 1 



(Order OrtJioptera.) 

 Also Known as "White Fly." 



A light greenish grasshopper-like insect which eats round holes 

 through the tobacco leaves between the main veins. 



Fig. 52.— Adult Tree Ciicket/about natural size. 

 (Photograph by the author.) 



The adult Tree Crickets resemble in a general way a small grass- 

 hopper. (Fig. 52.) They are light-green in color and the adults and 

 nymphs frequently do considerable damage to tobacco, especially when 

 it is growing near a thicket of brambles. The adult females lay their 

 eggs in the stems of blackberries and raspberries and undoubtedly 

 also in the stems of other plants growing in thickets. The adults 

 themselves normally feed on soft-bodied insects which they find in 



Wecanthus spp. 



