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FUNDAMENTALS OF AGRICULTURE. 



plants with an arsenical, as Paris green or arsenate 

 of lead. A close lookout should be kept for the ap- 

 pearance of the beetles on the plants in the spring, 

 and the poison applied promptly, which will largely 

 prevent further trouble. 



Harlequin Bug. The harlequin bug infests all cru- 

 ciferous plants, as cabbage, turnips, etc. The bugs 



HARLEQUIN BUG. 



a, Adult; b, egg masses; c, first stage of nymph; d, second stage; e, third stage; 

 /, fourth stage; g, fifth stage. 



hibernate in trash around gardens, and come out in 

 early spring, feeding on wild mustard. They obtain 

 their food by means of a beak and slender bristles 

 inserted into the plant, thus sucking up the juices, 

 causing the plant to wilt. Arsenicals are not effective 

 against this insect, and a strong spray must be used 



