48 NEW YORK STATE MUSEUM 



grain and an average of 7 maggots to a head. The owner reported 

 a yield of 26^ bushels an acre and i^ bushels of screenings. He esti- 

 mated the loss due to midge at 5 per cent. 



Leap's prolific showed a little less than 4 per cent shrunken grain 

 in one field and the number of maggots to a head was less than one. 



A sample of St Louis prize had 10.5 per cent shrunken grain and 

 an average of 2.5 maggots to a head. 



One field of no. 8 wheat had 28 per cent shrunken grain and an 

 average of 18 maggots to a head. The yield was i8|- bushels an acre, 

 from the machine by weight. There is very little question but that 

 the large shrinkage was due to the exceptionally heavy midge infesta- 

 tion. The insect was unusually prevalent in that section and there 

 were probably heavy losses as a consequence. 



The above figures give some idea regarding liability of different 

 varieties to injury by the maggot, though more conclusive evidence 

 may be secured when two varieties are grown under practically 

 identical conditions or even intermixed, for example, Klondike and 

 Dawson's golden chaff, grown in the town of Le Roy, had 13.8 

 per cent and 5.8 per cent respectively in adjacent fields separated 

 only by a lane, while the average number of maggots to a head were 

 3 and 2 respectively. Again, iron clad and no. 6, grown in Newfane, 

 the latter intermixed, had a little less than 4 and 5.1 per cent respec- 

 tively of shrunken grain, the former with an average of a little more 

 than I maggot to a head and the latter with an average of less than 

 2 maggots to a head. Finally, no. 6 and white chaff intermixed in 

 a Le Roy field had 2.4 and 6.3 per cent respectively of shrunken 

 grain and an average of less than i and 9 maggots to a head for the 

 two varieties. This latter was exceptional and may have been due 

 to the white chaff in this particular instance being in a more attrac- 

 tive condition at the time the midges deposited their eggs, since 

 for the region as a whole, the white chaff was certainly less affected 

 by the midge than no. 6. 



Wheat Midge in Rye 



There was a very general and in some cases excessive infestation of 

 rye by wheat midge. Conditions in Albany coimty were brought 

 to otir attention Jiuie nth by H. E. Crouch, manager of the local 

 county farm biureau. He stated that there was a somewhat general 

 infestation, some 25 per cent of the heads being affected in portions 

 of fields and that the infestation for the coimty might possibly 

 be I or 2 per cent. It was by no means difficult to find ten maggots 

 in one head and the presence of four or five was very common. 



