34 



REPORT ON INJURIOUS INSECTS FOR 1 906. 



I fear the amount of labour involved in picking off the pears from 

 the trees of even a medium-sized orchard is scarcely realized. Such 

 a method might be worth while carrying out on a few trees, but it is 

 not practicable where large numbers are concerned. 



Stiffffiti 



FIG. 4. THE PEAR MIDGE (Diplosis pyrivora). 



i. -Pear stunted and malformed by the larvae within it. 2. Section of 

 pear showing larvae within. 3. Larva, much magnified. 4. Female 

 Midge, much magnified, lines show natural length of midge and larva. 



FIG. 5. THE PEAR MIDGE (Diplosis pyrivora). 



i and 2. Distorted pears containing larvae. 3. Section showing larvae 

 within. 



* 



THE WHEAT MIDGE. 



Diplosis tritici, Kirby. 



Two cases of wheat infected by " Red Maggot," from Warwick- 

 shire correspondents, have been examined and reported upon during 

 the past year. Not having dealt with this insect in any previous Report, 

 some account of the life-history and habits may be useful. 



LIFE-HISTORY. 



The female midges make their appearance at the end of May or 

 early in June, and lay their minute, transparent eggs on the wheat 



