AGRICULTURAL EXPERIMENT STATION. 199 



tions of the apple peel showing larv.ne exit holes aud the punc- 

 tures of the ovipositor. 



To illustrate this Report photographs and measurement draw- 

 ings were made. From the photographs some outliues were 

 obtained for pen and crayon stipple drawings. These drawings 

 are found in their proper places. Methods of capturing the flies, 

 and also experiments with insecticides were tried. Incidentally 

 the presence of other apple insects was recorded. 



Work in Progress. 

 We are still at work upon the following questions : Will early 

 formed pupae transform earlier in the spring? Early and late 

 maggots have been allowed to transform and the time the flies 

 emerge will be noted. What depth of earth will prevent the flies 

 appearing.? Pupae have been put at various depths in sand and 

 the greatest depth from which they emerge will be recorded. Will 

 pupsee found in barrels and bins in cellars transform ? Pup£e, 

 uncovered with earth, have been placed in open vessels and will 

 be examined for flies. 



3 I 



