oD APPLE, 
examined about 1500 were found to be ‘‘ maggotty,” and of 500 
Pears about half were damaged; but still some enquiries were sent 
me which it may be useful to answer again here; and in the past few 
years such advance has been made in other countries, in measures 
both of prevention and remedy, that some of these points also may be 
usefully referred to. 
In regard to the kinds of fruit liable to infestation. Apples are the 
kind chiefly attacked, but Pears also are sometimes much injured. 
Besides these, Quince, Plum, Peach, and Apricot may be just named 
as liable to infestation, as also the fruit of the Hawthorn and the fruit 
of the White-beam tree.* Walnuts have been mentioned from time 
to time as found to be infested, and, for certainty of this taking place, 
at least occasionally, a short record of his personal observations, by 
Mr. Robert Adkin, F.E.S. (in ‘The Entomologist,’ Jan., 1896, p. 2), is 
well worth notice. To this Mr. Adkin adds mention of this species 
(Carpocapsa pomonella) having been bred frequently from Sweet Chest- 
nuts as well as from Walnuts by Mr. W. West. 
Pear infestation from the Codlin Moth is of frequent occurrence in 
many parts of the world; I have never, however, had the opportunity 
of examining it myself until last summer, when I observed some of 
the fruit on a ‘‘ Williams”’ Pear, trained on a wall with a western ex- 
posure, in my own garden, were turning yellow, and some of these fell 
off, and within them I found the Codlin Moth maggot. The fruit on 
another ‘‘ Williams” Pear growing near by (in this case a standard 
tree) was similarly what is called ‘ maggotty.” It is noted by Prof. 
Riley + that Pears infested by C. pomonella are liable to hang on the 
tree after the exit of the maggot, and likewise that they do not readily 
fall from the tree on being jarred. 
It would be of serviceable interest if in the course of the coming 
season we could have some observations of this attack as infesting 
Pears, and perhaps also whether it was more prevalent where, from 
grafting on inappropriate stocks or other causes, large, ill-shaped and 
deeply cracked growths of bark have formed at the base of the stem. 
This has been the case to a quite unusual extent on some of the trees 
in my own garden, and may possibly account for Codlin Moth presence 
having increased to such an extent as to require careful attention. 
The caterpillar or larva, when full grown, is from rather under 
two-thirds up to three-quarters of an inch in length; at first it is 
* Respectively Crategus orycantha and Pyrus aria. In the course of last year 
it was brought under my notice by Prof. Jos. Mik, of Vienna, that for Continental 
reference it would be very desirable that in the case of wild plants the scientific 
name should be added to the name popularly used in this country, and I adopt his 
suggestion with thanks. 
} ‘Sixth Annual Missouri Report,’ 1874, p. 10. 
