101 



In New Jersey, according to Dr. J. B. Smith/' moths appear early 

 in May and long before there is any corn for them to oviposit on. 

 Eggs are therefore deposited on a great variety of plants, peas and 

 tomatoes being favorites. Toward the end of May early corn is well up, 

 and some eggs are deposited on these plants, the larvae eating in the 

 buds and often boring into the stems. B}^ the middle and toward the 

 end of June the earliest larvse are full-grown on peas and are read}^ 

 for pupation. By the middle of July most of the larv^ on tomatoes 

 in the southern part of the State are full grown and before the end of 

 the month have disappeared. At this time, before the middle of July, 

 moths from the earliest larvae have appeared and have laid their eggs on 

 corn. Young larvae are found on the small ears before July 20, and by 

 the middle of August have attained their growth and have changed to 

 pupae. The pupal stage at this time lasts only about a week and young 

 larvae of a third brood appear before the 1st of September. There may 

 thus be three broods of this insect in the southern part of the State. 

 North of the Sandy Plain two broods are normal and a third is very 

 exceptional. 



Concerning the number of generations in Ohio, Webster and Mally 

 state :^ 



While there may be three broods in southern Ohio, in the northern part of the 

 State there are probably but two. These broods appear to be interminably mixed 

 before fall, and so late as November partly grown larvae may be found in the ears of 

 corn. ' 



Three generations are indicated for Illinois by Mr. C. A. Hart,^ in 

 spring boring into tomatoes, in summer eating unfolding corn, and 

 later feeding in the cavity near the tip of the growing ear. 



According to Professor Osborn,^ in Iowa — 



There are probably two broods in this latitude. The larvjfe of the first brood 

 appear in the early part of the season and feed on various plants, so that they do not 

 attract attention, while the second brood of larvae attacks the corn at the time the 

 ears are forming or soon after in the manner already described. The second brood 

 of larvae pupate and produce moths in the latter part of the summer, and farther 

 south at least it is stated that a third brood of larvae occurs from which pupae are 

 produced to pass the winter. 



A statement by Professor Riley ^ in the Fourth Report is of interest 

 in this connection: 



If, as we have stated, there are 3 normal broods a year as far north as New Jersey, 

 Ohio, and northern Illinois, then in South Carolina, north Georgia, Tennessee, and 

 Arkansas there are probably 4 broods, and as many as 6 in south Texas and Florida. 



«Ann. Rep. N. J. Exp. Station, 1892, p. 442. 

 6 Bull. 96, Ohio Agric. Exp. Sta., p. 17. 

 cSyn. Ins. Coll. for 111. High Schools, 1903, p. 38. 

 ^Bull. 24, Iowa Agric. Exp, Sta., p. 1004. 

 ^Fourth Rept. U. S. Ent. Com., p. 373. 



