MAINE AGRICULTURAL EXPERIMENT STATION. 191O. 345 



the branch and destroyed on the ground. Arsenical sprays 

 (Formula 6) will kill them, but the presence of fruit makes 

 this remedy undesirable for bearing tr^es late in the season. 



5. ^loTTLED Fruit Caterpillar. 



( Crocigrapha normani. ) 



The eggs are laid in a mass flatly attached to the leaf. They 

 hatch in mid-June in ]\laine. The larva is a smooth, hairless 

 caterpillar, i^ inches long when full grown. Its head is shiny 

 yellow with one dark blotch on each lobe. Its body is mottled 

 grayish brow^n above, and pale grayish green beneath. The 

 legs are pale. This caterpillar feeds both upon the foliage and 

 the fruit. (See fig. 55). The pupal stage is passed in the 

 ground. It is a glistening brown object about Y^ inch long. 

 The mature insect is a brownish moth expanding about ij-^ 

 inches. 



remedies. 



Arsenical sprays (Formula 6) applied for other species will 

 control this one also. As this caterpillar is very readily dis- 

 lodged, jarring the tree and killing the insect on the ground is 

 a convenient combative measure. 



6. Saddled Prominent. 

 (H&terocampa gtittivitta Walker). 



This species is well known in Alaine because it has been ex- 

 cessively destructive to orchard and forest trees during some 

 seasons. The full grown caterpillar is about i^ inches long; 

 body green usually, with reddish brown markings on the back, 

 smooth and hairless (fig. 11). The mature insect is a moth 

 expanding about 2 inches, ground color olive-greenish ashen 

 with cream white patches and black markings (figs. 12, 13). 



For Maine the saddled prominent has but one brood. The 

 moths emerge in greatest numbers late in May and early in 

 June. Oviposition begins soon after mating which occurs the 

 first night after emergence. The eggs hatch in about 9 days 

 and the larvse become full grown in 5 weeks (or more accord- 

 ing to weather conditions and food supply). During this time 



