14 NEW YORK STATE MUSEUM 



each instance was practical in nature. There was no special effort 

 to establish a record, and during the last two years there has been 

 no supervision of the spraying by an entomologist. Both of these 

 orchards are in excellent horticultural condition, though they have 

 received no more treatment in the way of spraying, cultivation and 

 fertilization than their owners considered practical from a financial 

 standpoint. Special effort may be justified when attempting to 

 rehabilitate a run-down orchard ; after this has been accomplished 

 the important point is to produce the most desirable results at the 

 minimum expense without incurring undue risk. It is our opinion, 

 so far as the codling moth is concerned, that the one timely spraying 

 with a poison just as soon as possible after the dropping of the 

 blossoms and certainly within ten days of that time, will meet all 

 normal requirements in the Hudson valley. 



The data upon which the above conclusions are based have been 

 given in detail in the author's reports for the years 1909-12, in- 

 clusive. 



LINED CORN BORER 



Hadena fractilinea Grote 



The yellowish, dull brown-striped caterpillars of the lined corn 

 borer, a comparatively unknown pest, were received from Mr C. B. 

 Schoonmaker, Stone Ridge, Ulster county, under date of June 13th. 

 They were accompanied by a statement to the effect that they were 

 destroying his field corn and that of a neighbor by boring into the 

 heart and killing the stalks. The larva lives upon the tender, small 

 shoots, tunneling the stalks and giving evidence of its presence by 

 making irregular holes in the growing tip. Its manner of work 

 suggests that of a stalk borer. 



Studies of this species by Prof. F. M. Webster in 1894 showed 

 that the caterpillar entered the stem at the tip and worked down- 

 ward, while another related species, H. s t i p a t a Morr., begins 

 just above the roots and works upward. Professor Webster also 

 reared another allied form, H. m i s e r a Grote, from the cater- 

 pillars working in the corn. He was unable to separate the two 

 species in the larval stage and has the impression that the caterpillar 

 of H. s tip at a Morr. closely resembles that of H. fracti- 

 linea. 



Description. The adult is one of the smaller of the familiar 

 heavy-bodied, owlet or Noctuid moths with a wing spread of nearly 

 i^ inches, a variable purpHsh brown color, and has on the fore 

 wing a silvery, eyelike spot near the middle and a more or less 

 distinct, irregular, brownish yellow, subapical, oblique band, which 



