EXPERIMENT STATION REPORT. 575 



the fields wb.ere grasshoppers are abundant. The lesults have 

 been wonderful ; in some cases millions of the insects being killed 

 and crops protected. As the grasshoppers which appear on the 

 •cranbery bogs are near relatives to those which are destructive in 

 the north, it might be worth while toi try this mixture. In the 

 reports of Dr. James Fletcher. Entomologist to the Canadian 

 Department of Agriculture, the Griddle mixture is especially 

 recommended and in the Report for 1903, Mr. Griddle himself 

 states that "it was found that one pound O'f Paris green could be 

 mixed with five patent pails* of horse droppings with absolute 

 success. Weaker mixtures were not cjuite so successful." He adds 

 further that the insects feed most in hot weather and that when 

 the mixture is put out during cold wet weather it is not so attrac- 

 tive. Furthermore, the insects in the early stages prefer the 

 mixture moist and he recommends spreading a little every other 

 day in the morning rather than a large quantity at one time. 'This 

 remedy is easily prepared and is inexpensive ; therefore it might 

 be worth trying on those bogs where grasshoppers are most 

 abundant and where the damage charged against these insects is 

 most marked. 



Incidentally, and as confirming the results obtained in New 

 Jersey with the Locust Fung-us, the Ganadian experimenters 

 report equally ill success. It is another illustration of the fact 

 that local insect control very frequently depends upon local con- 

 ditions, \\hich cannot be duplicated in other places, even though 

 some of the factors can be reproduced. 



THE ASIATIC LADY-BIRD BEETLE. 



In the reports for the years 1902 and 1903. I made record of 

 what efiforts had been made to colonize this insect in New Jersey 

 and in the report for 1903 I gave as complete a life history of the 

 insect as was available, with illustrations made for the U. S. 

 Department of Agriculture, and kindly loaned through the Eor 

 tomological Division. 



*A "patent pail" holds 3 gallons. 



