386 
JOURNAL OF ECONOMIC ENTOMOLOGY 
[Vol. 13 
after the first. The following table gives the weather conditions as 
recorded by Mr. Rundlett in Columbia County during this interval. 
July 1. 
Warm and fair 
July 10. 
Cool, rainy 
2. 
Hot, fair 
11. 
Cool, fair 
3. 
Hot, fair 
12. 
Warm, fair 
4. 
Hot, fair 
13. 
Fair 
5. 
Hot, fair 
14. 
Warm, fair 
6. 
Warm, rain 
15. 
Cool, cloudy, very humid 
7. 
Warm, fair 
16. 
Rain in morning, clear afternoon 
8. 
Cool, fair 
17. 
Warm, fair 
9. 
Cool, fair 
18. 
Warm, fair 
The orchards on Mr. Ogden’s place were sprayed first for the maggot 
on June 30 and the second time on July 17. Powdered arsenate of 
lead 3 pounds to 100 gallons of water was used in these orchards 
and since the places are near together the weather conditions were 
similar. It should be stated in this connection that the spraying 
was done rather thoroughly, care being taken to cover all of the 
foliage of each tree from the lowest to the highest branches. More¬ 
over special effort was made to spray every apple tree on the place 
so as to leave no breeding grounds. I visited and examined the or¬ 
chards in company with Mr. Rundlett on September 11. The 
Alexanders and Maiden Blush on the farm of Mr. Van Alstyne had 
been harvested. He said that 75 per cent of the Alexanders were 
of quality A and that the crop, as a whole, was fine. The Blush 
apples dropped but little, were remarkably free from infestation, 
and, as he expressed it, “were fine.” 
The Baldwins and Greenings were still on the trees and were in 
fine condition—as handsome a crop as I have seen this year. Later, 
Mr. Van Alstyne tells me, some infection of scab developed on the 
Greenings. Only occasionally could we find an infested apple 
on the trees and there were very few drops. It is worthy of note that 
two trees, one a Spy, close to the house, and another variety, the name 
of which I do not recall, that stood on an inaccessible bank behind the 
poultry house, were not sprayed. I believe that every apple on the 
Spy tree was infested with maggots and a very large percentage of 
those on the inaccessible tree. These two trees will be cut and burned 
before spring and thus the breeding grounds destroyed. 
Perhaps the crop of Spies in the orchard of Mr. Ogden afforded the 
most striking example of the results of the spraying. The trees bore 
a fine crop, probably more than last year and we did not find an infested 
apple. So far as color, smoothness, and freedom from injury were 
concerned the apples, as the foreman said, would nearly all go in qual¬ 
ity A. Size, however, would prevent such a realization. When the 
Spies were picked, however, a slight infestation was found which is 
