188 JOURNAL OF ECONOMIC ENTOMOLOGY [Vol. 7 



species was found near Lyons where it spread very rapidly. It is 

 apparently of considerable importance since it has also been reported 

 to attack other Lepidoptera in England and Germany. 



A small red ant, Solenopsis sp., has been found an enemy of the bee- 

 moth, as many of our cage experiments were destroyed by this ant 

 killing the moths and larvae. The attack is made upon the moths in 

 the day when they are at rest and the abdomen is all that is carried 

 away. The larvae are attacked during the day and those which are 

 not well protected are sure to be eaten by these ants. 



Artificial Control. Unfortunately, none of the above mentioned 

 parasites of the bee-moth have been observed in Texas. Therefore, it 

 is necessary for the bee-keeper to depend entirely upon artificial con- 

 trol of the pest. For this purpose fumigation has proven the best 

 means of fighting the pest. In our experim.ents two materials were 

 chosen, carbon bisulfide and sulfur. 



From these experiments it is evident that only extremely large doses 

 of sulfur will affect the eggs of the bee-moth. The results indicate 

 that the fumes are not ordinarily penetrating enough to be effective 

 if the larvae are well protected by their webs. 



In the experiments with carbon bisulfide it was found that the eggs 

 of the bee-moth were not injured by the ordinary doses. These ex- 

 periments, however, showed the effectiveness of the fumes of carbon 

 bisulfide upon' the larvae of the l3ee-moth. It was found that the pupae 

 are susceptible but a longer confinement in the gas is necessary to kill 

 them. The moths were also found very susceptible to the fumes as 

 they were killed in twenty minutes after being confined. 



So successful was carbon bisulfide in the control of the bee-moth 

 that tables were compiled showing the dosage necessary for varying 

 numbers of supers and hive bodies containing infested material and 

 these amounts have been found effective in actual practice.^ 



Mr. a. F. Conradi: Do you find ants in the hives? 

 Mr. F. B. Paddock: Ants in beehives are very rare. 

 President P. J. Parrott: The next paper will be read by Prof. 

 Glenn W, Herrick on "Oviposition of Two Apple Pests." 



> The tables are given in Bulletin 158, Texas Experiment Station, "Investigations 

 Pertaining to Texas Bee-keeping." 



