3i MASS. EXPERIMENT STATION BULLETIN 239 



lb) is smooth and rather dark. A broad dark lirown stripe runs the length 

 of the back and usually is divided by a broken pale line running along its 

 middle. At each side of the dark back stripe is a narrower reddish yellow 

 one, then a dark one, and lastly another reddisii yellow one. These colors vary 

 somewhat. The stripes are separated by pale yellow lines. The under side of 

 the body is pale greenish brown. The spiracles are black. Each proleg of 

 the four anterior pairs has a noticeable deep brown stripe across the middle 

 of its outer side. The head is yellowish brown with a color network of dark- 

 er brown. Tiie mature worm is about an inch and a half long. 



The Pupa. 



This is reddish or chestnut brown at first, becoming blackish Ijefore the 

 moth emerges. 



The Moth. 



Swarms of the moths often appear about street lights shortly before an 

 outbreak of the worms. Cranberry men sometimes may be warned by this 

 and should know the moth at sight. It usually spreads about an inch and 

 five-eights and is plain light brown (Plate One, fig. 12). Each fore wing has 

 a white speck near the center of the upper surface and a dark shade running 

 liack obliquely from the outer angle. 



The motiis live on the nectar of flowers and the honeydew of certain insects, 

 and sometimes many may be caught with sweet baits at night. As they rarely 

 lay eggs near where they have developed and often fly many miles jjefore 

 doing so, there seldom are two outbreaks a year in any one locality. 



Treatment. 



Floodimj. 



On boys that cannot be reflooded. — Consult tiie Bureau of Entomology of 

 the United States Department of Agriculture as to the probability of an 

 armyworm invasion. If an outbreak is predicted, do not hold the winter water 

 after May 2.5. 



On boijs that can be reflooded. — Flood for 1-5 hours as soon as the net count 

 (page 3) shows treatment is necessary. 



Spraying. 



What has been said of the blossom worm in regard to spraying applies to 

 this worm also. 



Baitin<j. 

 See page 26. 



