INSECTS INJURIOUS TO COTTON. 201 



insect living in the pods of various plants, among others 

 in those of the coffee-plant in Brazil, but is never shown 

 to attack healthy plants/' 



Various leaf -eating caterpillars often gnaw the bolls, but 

 will be destroyed by poisoning the foliage as previously 

 described. 



If the Paris green be aj^plied for the Cotton-worm, and 

 the general methods advised for the control of the Boll- 

 worm and Mexican Boll-Aveevil be followed out, little fear 

 need be had of these minor insects, though a knowledge 

 of the best remedies for them is always desirable in case of 

 their apppearing in unusual numbers. 



The Cotton Boll-worm (Heliothis armiger Hubn.). 



The Cotton Boll-worm is one of the pests most widely 

 dreaded by the cotton-grower, and differs from the Cotton- 

 worm in that it is found in other parts of the world as well 

 as America, and is not restricted to a single plant-food, 



Tlie Moth. — The adult moth is about the same size as 

 the Cotton-worm moth, but has a larger body and a greater 

 variety of markings. When at rest the fore wings of the 

 Cotton Boll-worm moth are slightly parted, while in the 

 Cotton-worm moth they are closed. The Boll-worm moth 

 varies much in color; both wings are bordered with dark 

 bands, the wing-veins are black, and there are other black 

 spots upon the fore wings. It may generally be seen about 

 dark, and hides itself during the day in cow-peas and 

 clover, sipping the honey from the blossoms of these and 

 other honey-secreting plants, but does not, like the Cotton- 

 worm moth, feed upon fruit. 



Life-history. — It deposits its yellowish-white eggs upon 

 all parts of the cotton-plant, but prefers the silk and 



