610 Report of the Entomologists of thej 



July 6. These beetles all starved to death. None of the vines 



were eaten. In fact, the beeth's would not stay on the 



vines. 

 July 7. Repeated the above experiment with fresh vines and a 



new supply of beetles. 

 July 12. Beetles all dead. Plants not eaten. Beetles left the 



plants and starved to death. 

 This test was repeated the third time with the same 



results. 

 These tests indicate that the virtue of Bordeaux mixture as an 

 insecticide lies principally in the fact that it is obnoxious to some 

 insects and not necessarily poisonous to them. The tests on cu- 

 cumber vines indicate the same thing. Also the tests of Bor- 

 deaux mixture against the potato flea-beetle indicate the same. 

 No one who has tested this remedy has ever reported seeing one 

 of the potato flea-beetles dead. 



The tests of Bordeaux mixture on cabbage against the cabbage 

 worms also indicate that this mixture is obnoxious to them and 

 not necessarily poisonous. 



Test of Cultural Measures for the Squash Borer. 



A description of this pest [Melittia ceto Westw.), its habits 

 and life history, together with remedies, were given by Mr. Lowe 

 in Bulletin No. 75 and in the Thirteenth Annual Report of the 

 New York Agricultural Experiment Sta;tion. 



During the past two years a few facts in regard to the use 

 of cultural measures against the squash-borer have been ob- 

 tained. 



During November, 1894, a number of cocoons (winter stage) 

 of the squash-borer were gathered. Thirty-six of the cocoons 

 were placed in the bottom of a six-inch pot. The pot was then 

 filled with dirt and buried so that the top was level with the sur- 

 face of the ground. Twenty-four cocoons were placed on top 

 of a pot which had been previously filled with dirt and plunged 

 full depth into the ground. Both pots were fitted with lantern 

 globes the tops of which were closed with cheese cloth. They 

 were placed in the open field. From the cocoons placed on the 



