the caterpillars go into the ground, where they spin a fine cocoon, and 

 remain all winter. In July, the moths emerge, and begin egg-laying 

 a few only being laid on the young pods. The young caterpillars 

 hatch from the egg;^ in about two weeks. 



Late peas are injured most, and sometimes these are badly 

 damaged. (Fig. 2, d). No reliable treatment has as yet been found to 

 control them, but it is advisable to sow early peas, since these are 

 least injured. 



Fifr. 1. Pea Weevil.— {a) The 

 grub ; (6) the pupa, under sur- 

 face ; (c) the pupa, upper surface ; 

 (d) the adult weevil. (Original.) 



Fig. 2. Pea Moth. — (a) A full grown " worm" or caterpillar 

 (enlarged) ; {b) adult moth with wings expanded (enlarged) ; 

 (c) adult moth with wings closed ; (d) a group of five peas 

 injured by the caterpillar of the pea moth. 



Pea Aphis. Within the past few years, the pea aphis, 

 (Nectarophora pisi) appeared in several localities in Ontario, especially 

 in Prince Edward, Lennox, Addington, and Wentworth, where it 

 caused considerable loss. In many of the States to the south of us, 

 the losses from this insect were very large. The life history of the 

 " aphis " is interesting, as it spends the first part of the season on 

 clover, migrates to peas in summer, moves back to the clover in the 

 fall, and upon it spends the winter. In Ontario, however, it has done 

 no serious harm to the clover crop. Fortunately it is attacked by 

 several predaceous and parasitic insects, and by a fungus, all of which 

 aid in keeping it in check. 



