ACTING STATE ENTOMOLOGIST. 
29 
power, to bore out of it into the adjoining fruit, though there is an abundance of food 
remaining for it in its original home. Probably, on careful search, similar cases of wan¬ 
ton destructiveness might be met with in the human species. 
Others as well as myself—Dr. James Weed, for example, of Muscatine, Iowa —have 
observed that the larva of this insect often leaves the apple, before that apple falls to 
the ground. Consequently the gathering up and destroying windfalls, either by man¬ 
power or hog-power, though an excellent prescription so far as it goes, is not an infal¬ 
lible panacea. 
After all, the best and most reliable remedy, so far as my limited experience goes, 
when we have palliated the evil by destroying the wormy windfalls day after day, is 
Dr. Trimble’s hay-band system ; which should be commenced about July 15th and con¬ 
tinued till about Sept. 15th, looking under the hay-bands everyday or two for the 
cocoons. The cocoons themselves may be readily recognized by their being composed 
of a gossamer-like, filmy, white silk, inside which the larva or pupa will be found. On 
this important subject, I append the following passage, which I find in the Western 
Rural of Nov. 9,1867. 
“ A correspondent of the Country Gentleman states that, in the orchard of Di. Trimble, 
of New Jersey, he had an opportunity of witnessing the efiicacy of what he calls ‘Dr. 
Trimble’s remedy for the apple-worm.’ Hay-ropes had been wound around the trunks 
of the trees, and large numbers of insects had been caught, some of which had attained 
the pupa state, while others having only just reached their hiding-place were still larvte. 
The whole number of insects caught on one tree during the season amounted to a thou¬ 
sand. Trees, which formerly had nearly all their fruit destroyed, were, under this 
treatment, bearing very fair crops. A complete extermination could not be expected, 
while the neighboring fruit-growers took no precaution against the insect. Dr. Trimble 
applies two belts or bandages, one of them two or three feet high and the other higher. 
He thinks that the worms under the higher belt descend the tree before the fruit 
drops, and those under the lower crawl up from the fallen fruit on the ground.” 
It must not be supposed that, because this insect has swarmed so prodigiously in 
1867, therefore it will necessarily be as numerous, or even still more numerous, in 1868. 
In 1865 it abounded near Hock Island and elsewhere ; yet in 1866, in the same localities, 
it was very scarce and did no appreciable damage. In 1867, on the contrary, I can hear 
of but two States — Kansas and West Virginia— in the northern half of the Union, 
where it has not been more ruinously destructive than was ever known before. 
The Pear, being so closely allied to the Apple, has, as we should naturally anticipate, 
been extensively attacked by the Apple-worm in 1867. Harris merely observes that 
“ the worms, often found in summer pears, appear to be the same as those that infest 
apples.” But, from a lot of infested pears sent me from Philadelphia, under the idea that 
they contained a peculiar species, I have myself bred the veritable Codling Moth ; and 
before I had bred it, I assured my correspondent that the larva was identical with that 
of the Codling Moth. Mr. Parker Earle, President of the Fruit-growers’ Association of 
Southern Illinois, informs us in his Annual Address to that Society in 1867, that ‘‘in 
many sections of country nine-tenths of the pears are reported as ruined by the Codling 
Moth in 1867.” 
CHAPTER VI. — The Apple Maggot Fly. (Trypeta pomonella, Walsh.) Fig. 2. 
In Illinois the fruit of the apple-tree is at present bored up only by the Apple-worm, 
