186 REPORT 4, UNITED STATES ENTOMOLOGICAL COMMISSION. 
Iron weed ( Yemonia noveborace?isis). Alcoholic extract and decoc- 
tion. No result. [E. A. Schwarz.] 
Tansy (Tanacetum vulgare). Alcoholic extract and infusion. No re- 
sult. 
Dock weed (Rumex sp.). Alcoholic extract. No result. [E. A. 
Schwarz.] 
Spearmint (Mentha viridis). Alcoholic extract. No result. [E. A. 
Schwarz. J 
Jerusalem w t eed (Chenopodium anthelminticum). Alcoholic extract 
and infusion. ''-This is another exceeding^ strong-smelling substance, 
especially in the form of alcoholic extract made from the blossoms and 
green fruits, but no effect whatever was observed." [E. A. Schwarz.] 
Sassafras (Sassafras officinale). Alcoholic extract from the dried 
bark of the root. No result. [E. A. Schwarz.] 
Goat weed (Croton texanum, C. glandulosum, G. capitatum y and 0. 
monanthogynum). Decoction from leaves and blossoms. Also a very 
strong-smelling fluid. No result. [E. A. Schwarz. | 
Black walnut (Juglans nigra). Alcoholic extract and decoction. 
"A substance which, especially in the form of decoction, deserves fur- 
ther attention. It has no effect on the worms upon contact, but renders 
the leaves decidedly distasteful to them. On the second day after ap- 
plication the leaves which had received a large amount of the decoction 
remained fully intact, the worms having removed to the lower branches 
and to those portions of the plants which were not, or but little, treated 
with the decoction. Several worms kept in captivity without food ex- 
cept leaves drenched with this decoction finally fed upon them and 
successfully changed to pupse. The decoction stains the leaves dark 
brown, but apparently without injuring them." [E. A. Schwarz.] 
Horse nettle (Solanum carolinense and S. cornutum). Decoction. 
No result. 
Indian heliotrope (Eeliophytnm indieum). Decoction. No result. 
[E. A. Schwarz.] 
Mock orange (Philadelphus inodorus ?). This is recommended as an 
insecticide all over the South, for the only reason, it seems, that it is 
injurious to stock. Decoction, infusion, and alcoholic extract had no 
effect whatever on the worms. 
White -bordered euphorbia (Euphorbia marginata). Decoction. 
No result. [E. A. Schwarz.] 
Coffee weed ( Cassia occidentalis). Alcoholic extract and decoction. 
"This has undoubtedly some effect on the worms, though much less 
than the China tree berries. Appears to act upon contact, though very 
slowly. The worms appear to get affected several hours after applica- 
tion, resting motionless and without feeding, but were recovered on the 
second day. Some young worms were found dead one day after appli- 
cation, but it is doubtful whether from the effect of the decoction or 
killed by the force of the spray." [E. A. Schwarz.] 
