Injects Attacking the Pecan 173 



a shallow pan set on top of them. One fluid ounce of carbon 

 disulfide to each bushel of nuts is poured into the pan and 

 the receptacle tightly closed for twenty-four hours. The 

 larvffi will then be dead and the nuts may be aired out and 

 consumed as desired. Carbon disulfide is highly inflam- 

 mable and should be kept away from fire. 



PECAN CIGAR CASE-BEARER 



{Cleophora canjcefoIieUa^ Clem.) 



The cigar case-bearer sometimes becomes a serious pest to 

 the pecan. However, it is not generally rated as one of the 

 most troublesome insects attacking this crop. It is distributed 

 practically all over the pecan belt and attacks the hickory 

 and black walnut as well. 



This insect spends the winter in the larval stage in cases 

 attached to the limbs of the tree. As growth begins in the 

 spring, larvae come out of their cases and feed on the unfold- 

 ing buds and tender leaves. They pupate in the larval cases 

 which appear in the lower South about the middle of May. 

 The moths emerge and begin egg-laying in June. The eggs 

 hatch within a few days and the larvse enter and feed be- 

 tween the two epidermal layers of the leaves. Later they 

 come out and construct dark brown cases resembling minia- 

 ture cigars. The larvae move these cases around as they feed. 



Control, 



TThen the insect becomes numerous, it is ad^'isable to 

 spray the trees with arsenate of lead in the early spring. 

 The spray recommended for the pecan leaf case-bearer will be 

 suitable. 



