According to Mr. G. G. Atwood the distribution of P. nuhilalis 

 in New York embraces 1,954 square miles within four counties, 

 the actual infested area covering about 400 square miles. The only 

 way to control this pest is to destroy the plant containing the larvae 

 and pupae. Various suggestions relative to remedial measures are 

 submitted for consideration. The maize maturing before ] st September 

 should at once be cut and used for food or placed in silos ; the stubble 

 should be ploughed under, after which the land should be heavily 

 rolled, and the subsequent harrowing should not briag the stubble to 

 the surface. No stubble within the quarantined area should be 

 ploughed after 1st September. Maize maturing after 1st September 

 should be cut very close to the ground and placed in silos or cured 

 and saved as fodder, in which case the portions not used by the 1st May 

 must be burned. All dry maize stalks, as well as those mixed with 

 manure, must be destroyed. No maize on the cob, on the ear or any 

 part of the plant susceptible to injury as well as weeds dry or green 

 should be taken out of the quarantined area for any purpose. All 

 maize should be shelled prior to 1st May and the cobs burned. Maize 

 should be grown in hills rather than in drills to facilitate cleaning up 

 processes, and more extensive use should be made of silos in infested 

 areas. A further suggestion is made for the limiting of the planting 

 of maize within the infested area, excepting such as is permitted for 

 trap-plots. The quarantine referred to is that placed on the four 

 counties m. which infested maize stalks were found. 



Mr. W. Wheeler ia reviewing the situation in Massachusetts stated 

 that P. nuhilalis is known to exist in 93 towns, as well as in 3 towns 

 in New Hampshire, comprising an area of over 1,200 square miles. 



Points regarding the life-history of P. nuhilalis were dealt with 

 by Mr. D. J. Cafirey. Adults have been reared from 48 varieties of 

 plants, of which the following are additional to those previously 

 noticed [R.A.E., A, vii, 224], tomato, geranium, oats, purslane 

 (Portulaca), turnips, sunflower, cabbage, asparagus, chicory, rhubarb, 

 Hungarian millet, buckwheat, sow-thistle (Sonchvs) and asters. 

 Probably, within certain limits, the species of plant selected depends 

 more upon its location with reference to other badly infested plants 

 or its accessibihty to the ovipositing females than upon its character 

 as a plant. Individual females have been observed to make single 

 fhghts for a maximum of 287 yards up to a height of 50 feet, after 

 which they were lost to view. Marked females were recovered at a 

 maximum distance of 600 yards from the point of liberation. In 

 confinement their life averaged about 19 days, with a maximum of 

 33 days, a period that would allow them to travel considerable 

 distances in a series of flights. During May and June the average 

 number of eggs deposited by one female was 386, with a maximum 

 of 1,192, these being laid in separate clusters containing on an average 

 17 eggs. The moths of the second brood are apparently able to 

 exceed these numbers. The adults are not attracted to any extent to 

 stationary hghts of any colour or candle-power, and the poison-baits 

 in common use for Lepidopterous insects have not proved attractive 

 to them. In captivity they readily feed on the decaying juices of 

 tomato and pear. Experiments with regard to the ploughing under 

 of infested material show that the depth does not greatly influence 

 mortality, but no adults emerged from material buried 12 inches 



