85 

 CONCERNING CUTWORMS, WIREWORMS & WHITE GRUBS. 



liy W. l/ochhead, Macdonald College. 



These three kinds of insects do a vast amount of injury on the farms 

 of Canada. Their work is known to farmers, but the insects themselves 

 are not so w^ell knov^^n since they -work underground and are not readily 

 observed. It is not generally recognized, for example, that there are 

 many kinds of cutworms, wireworms and white grubs, differing to some 

 extent in their habits and life history. It is the purjDose of this article 

 to give in a concise form some facts regarding these injurious forms 

 which may help tilie observant farmer to deal with them whenever occa- 

 sion arises. 



3f' 



Cutworms : 1 (a) Noctua c-nigrum (Spotted Cutworm) moth ; 1 (b) and 1 (Ic) caterpillar or cutworm. 



2 (a) Agrotis ypsilon (greasy cutworm) moth ; 2 (b) and 2 (c) cutworm. 



3 (a) Hadena devastatrix (glassy cutworm) moth ; 3 (b) and 3 (c) larva. 



CUTWORMS. 



Cutworms are the caterpillars of the "miller" moths, which every- 

 body has seen in summer evenings as they often ily through open win- 

 dows into houses, attracted by lights. They are mostly plump-bodied, 

 cylindrical caterpillars, dirty-grayish or whitish, and variously spotted 

 and striped. They are night-feeders and are essentially grass and clover 

 insects, and by far the greater part of them are bred in pastures and mead- 



