82 



THE GYPSY MOTH APPENDIX. 



Outdoor Experiments. Larvce in Sixth Stage. 



Foliage slightly burned. 



t Foliage badly burned. 



BARIUM ARSENATE. 

 Field Experiments. 



Ten pounds to 150 gallons; glucose, 1 gallon to 150; 50 

 square rods red oak and white oak brush ; larvae in second 

 and third stages. Echo Street, Maiden. 



Sprayed May 24, 1897 : 

 May 26. No results. 

 May 28. No results. 

 May 29. No results. 

 June 3. Few larvse dead ; foliage burned 



Discontinued. 



Ten pounds to 150 gallons ; glucose, 1 gallon to 150 ; 30 

 square rods white oak and red oak brush ; larvae in second 

 and third stages. Valley Street. Medford. 



