III. NOTES ON ( ABBAGE PLUSIA AND BEMKDiKS 

 FOR THE SAME. 



Plusia Brasswa\ 



Summary. 



The cabbage plusia, better known as the eabbage-looper, is the 

 worst pest known on lettuce in forcing-houses. The most practi- 

 cal means of preventing its work on lettuce is to keep the venti- 

 lators closed with mosquito netting. We succeeded in killing 

 this pest on cabbage in the open field hy the use of a poisoned 

 resin-lime mixture, also with a ])(>isoned Bordeaux mixture to 

 which the resin mixture had been added. The resin-lime mix- 

 ture not only, proved a success for making Paris green or London 

 purple adhere to cabbage and related plants, but it was found 

 that by its use the poison could be made to adhere to the under 

 surface of the leaves where it was impossible for it to be washed 

 off by rains. :' 



Introduction. 



This pest is better known in this section as the " Cabbage 

 Looper " and the adult form as the " Cabbage Moth " or " Miller." 



The history, habits, food plants, etc., of this pest have been 

 given in Bulletin No. 83 and in the Thirteenth Annual Report of 

 the New York Agricultural Experiment Station. 



As the amount of damage done by this pest is increasing each 

 year in this section we are warranted in calling attention to its 

 work again. Furthermore, a certain amount of success has been 

 obtained in the remedies tested, hence part of the facts already 

 given will bear repeating. 



Injuries and Remedies in the Greenhouse. 



This " Cabbage Looper " is a marked greenhouse pest. The 



*' moths " or " millers " lay their eggs on many of the plants 



before the latter are taken into the houses, but they usually prove 



more troublesome by getting into the houses throunh the venti- 



