14 



FARMEKS BULLETIN 860. 



12. — Red-striped flreworm 

 eularged. 



Larva. Considerably 



white dots on each 

 forewing. Under a 

 hand lens other 

 smaller white spots 

 may be seen dotted 

 over the wings. 



Hibernating worms 

 are parasitized 

 heavily and can not 

 Avithstand winter 

 flowage. Narrow red stripes running longitudinally along the body 

 (fig. 12) serve to distinguish them from the other fireworms. The 

 worm always lives in a somewhat loosely constructed case among the 

 foliage, and, when full grown, uses the case for a cocoon in which 

 to pass the pupal stage. 



The eggs are pearl white, very small, irregular in outline, but 

 very plastic. They are placed under loose pieces of bark on the 

 woody parts of the vines, beneath dormant buds, and in the axils of 

 leaves. (Fig. 13.) 



Treatment. 



WTNTKK yi.OW.VfiK. 



Bogs that can be winter-flowed so that al 

 are not troubled by red-striped fireworms. 



portions are covered 



SPKAYIXG. 



This pest Avill rarely be detected on the Aines until mid- August, at 

 which time an application of paste arsenate of lead (3 pounds to 50 

 gallons of Avater) should suffice to control it. 



CRANBERRY TIPWORM.^ 



The cranberry tipworm appears to be one of the most common and 

 most generally distributed of cranberry insects, although the extent 

 of its injury is not api)i-eciated fully. It has caused serious losses in 

 Massachusetts and its injuriousness is coming to be recognized more 

 fully in New Jersey. Reports of its work have been received recently 

 from the Pacific coast cranberry district and it is a pest long estab- 

 lished in Wisconsin. Until recently its life history Avas a matter of 

 much conjecture, but lately some of the obscnre points have been 

 cleared up. 



^ Dasytieura i-acritiii Smith. 



