A parasite of the Codling-worm has recently been introduced into 

 California, and is apparently doing- good work by reducing the numbers 

 of the insect. It is too soon yet to form a definite opinion regarding its 

 permanent usefulness, and experiments will require to be made in order 

 to prove its. ability to thrive in the climate of Ontario. 



The Apple Maggot (Rhagohtis [Trypeta] pomonella). This insect 

 attacks the fruit by burrowing in all directions through the flesh which 

 it feeds upon, and leaving brown channels — thus rendering the fruit per- 

 fectly valueless. Fortunately it has so far been found in few localities in 

 Ontario, but it is quite common in New York and New England States, 

 and may at any time spread over this country. 



The parent is a two-winged fly, somewhat smaller than a house-fly, 

 black in color, with yellowish head and legs, green eyes and transparent 

 wings crossed with four irregular black bands. The eggs are laid in 

 early summer beneath the skin of the fruit, and the young maggots which 

 hatch from them become full-grown in about six weeks. The fruit then 

 drops prematurely to the ground, and the maggots soon bury themselves 

 in the soil, where they form their puparia and remain till the following 

 spring. (Fig. 



2*.) 



Fig. 2 J. — Fruit injured by the -Apple-Maggot ( Trypeta). 



From the habits of the insect it is evident that it cannot be reached 

 by any poison ; the only remedy for it that has been found effective is the 

 immediate destruction of the fallen fruit in order to prevent the maggots 

 escaping into the ground. This may most easily be done by keeping a 

 sufficient number of pigs or sheep in the orchard to devour the fruit as 

 fast as it falls. If this should not be practicable, the work must.be per- 

 formed by hand, and the collected fruit fed to stock or otherwise de- 

 stroyed. All refuse or injured apples in storage should also be similarly 

 disposed of in order to prevent the flies from coming to maturity. 



