EXPERIMENT STATION BULLETINS. 



177 



the cabbage-looper except that the fore-wings are marked with grey and 

 seal-brown. The silver mark is hook-shaped, and the hind-wings are 

 marked with a dark wash. See also eabbage-looper. 



Fig. 26. — Little negro bug. A, upper side; B, under side, enlarged; C, leaf showing bugs at work 



(After G. C. Davis.) 



REMEDIES. 



Of course poisons should not be used, but Pyrethrum and water, 

 applied with an atomizer, should answer all requirements. Apply as 

 when used against the cabbage-worm. 



Sulphur-colored Tortrix (Dichelia sulfureana). 



Mention is made of this little moth in Bui. 102 of this station by Mr. 

 G. C. Davis, formerly consulting entomogist of this station. Mr. Davis 

 says in part : "There are at least two broods and probably three. The 

 larvae are light green all except the tips of their mandibles, labrum, 

 and front feet which are black, and the head and thorax which are 

 lighter, almost a tlesh color. They live in leaves drawn together by a 

 web which they spin and feed on the adjoining leaves. They pupate 

 in the same leaves in which they live. The little moths are bright 

 sulphur-yellow with a net-work of small red lines and larger reddish- 

 brown bands on the primary wings. The hind-wings are dusky. The 

 band on the front-wings varies considerably." 



REMEDIES. 



Clear up all refuse material and burn in the fall. A spray of Pyreth- 



rum-water should kill many if applied forcibly enough to penetrate 



into the rolls of leaves. 

 2:i 



