PEA AND BEAN INSECTS 83 



The Striped Green Bean Caterpillar 



Ogdoconta cinereola Guenee 



Bean vines are frequently stripped of their foliage and pods 

 by a. slender green caterpillar. This injury has been reported 

 from Florida, Mississippi and Maine. 

 The insect is generally distributed 

 throughout Canada and the United 

 States east of the Rocky INIountains. 



The light brown moth has an 

 expanse of about an inch. The 

 front wings are marked with a 

 few wavy grayish white cross Fig. 58. — The moth of the 



lines. Across the outer margin ^triped green bean caterpillar 



is a broad, light brownish gray 



band. The hind wings are brownish gray (Fig. 58). The 

 moths are on the wing from June to September but it is not 

 known where the eggs are deposited. The full-grown cater- 

 pillar is over one inch in length, pale green, striped with whitish 

 and yellowish longitudinal lines. This insect is related to the 

 cabbage looper and like it, the caterpillar has the habit of loop- 

 ing like a measuring- worm. When disturbed the larvse give a 

 series of violent jerks and fall to the ground. Pupation takes 

 place in the soil. The pale yellowish brown pupa is slightly 

 less than ^ inch long. Knowledge of the life history of this 

 insect is very imperfect and additional observations should 

 be made whenever opportunity offers. 



When abundant, the caterpillars may be destroyed by spray- 

 ing wath arsenate of lead (paste), 5 pounds in 100 gallons of 

 water. On snap ])eans tobacco dust may be used to drive 

 them from the plants. 



Reference 

 U. S. Div. Ent. Bull. 14 (old ser.), p. 21. 1887. 



