124 Observations on the Wheat- Moth. 



wheat was put in a garret, early after harvest. About 

 one half of this quantity was left in bags ; the re- 

 mainder was spread upon the floor. This last soon 

 became full of the insect, while that in the bags was 

 entirely free from it, except a very few which appeared 

 the first three or four days, and were driven away. 



Mr. Miles (whose wheat, I have already observed, 

 was entirely destroyed) found a small handful of 

 wheat-ears in his field, about eight or ten days after 

 harvest. These he took home, and kept in his par- 

 lour, for a considerable time. In this wheat, although 

 it was examined with the greatest attention, not the 

 least appearance of the moth could be observed. 



A quantity of Barley, kept for the use of the family, 

 has been lying in the garret of one of our neigh- 

 bours, for nearly four years. In the autumn of 1802, 

 a few of the grains were found hollow, and a number 

 of the insects among them. This present season 

 (1803), their numbers, in the same barley, were very 

 considerable. 



A quantity of wheat, among which the moths were 

 very numerous, was thrown into water, with the view 

 to separate the light grains, which were thrown away : 

 the remainder, after having been dried in the sun- 

 shine, was laid in a granary, where it has been kept 

 for nearly six months, without any appearance of the 

 moth. This would seem rather to favour the opinion, 

 that the egg is deposited at some stated period. 

 Whether the same effects will always occur, under 



