XI. NOTES ON THE RECENT ARMY-WOKM 

 OUTBREAK.* 



Summary. 



Although it is not probable that auother outbreak of the army 

 worm will occur this year, it is advisable to clear up and, where 

 possible, to burn over infested sections. 



The caterpillars are now passing through the chrysalis stage 

 and should be looked for under stones, bunches of field grass, bits 

 of board, or any rubbish which may be found in the fields or 

 along the fences. • 



During an outbreak, the advancing insects may be checked by 

 plowing furrows, rolling, or by poisoning a portion of the crop at- 

 tacked. Prompt action is always necessary to secure the best 

 results. 



Introduction. 



The recent outbreak of the army worm has caused much alarm 

 among farmers throughout the state, and also much apprehension 

 as to the probability of another serious invasion this season. 

 Judging from our correspondence, there is a general desire among 

 farmers, especially among those who have suffered from the 

 depredations of the caterpillars, to know something of the life- 

 history and habits of the insect. Many are also inquiring if it is 

 advisable to make further effort to prevent the increase of the 

 worms during the remainder of the summer. 



With this in mind, the following brief article has been written 

 in which the life-history of the insect is given, together with a 

 statement of such facts relating to the invasion as are judged to 

 be of especial interest at this time. The short time necessarily 

 allowed in the preparation of this article precludes anything 

 more than a brief review of the subject. 



♦Published in part as Bulletin No. 104. 



