310 



STATE BOARD OF AGRICULTURE. 





i ; I e 



Fig. 138.— Striped cucumber beetle, Diabrotica vittata: larva Irom side and above, 

 and beetle : enlarged. 



D. 12-punctata Fabr. Common from April to October throughout the State 

 and on a great variety of plants, favoring Cucurbs : the larva feeds on 

 the roots of corn and probably other grasses. 



D. vittata Fabr. The "striped cucumber beetle," common throughout the 

 State, April to October, often seriously injurious to cucurbs of all kinds ; 

 the beetle eats into the stem at the surface, the larva mines in it a little 

 under ground. Hibernates as an adult. Remedial measures vary and 

 generally result in an effort to keep away the beetles until the vines are 

 well established. This is sometimes accomplished by planting an excess 

 of seed so as to allow the insects to kill a number and yet leave enough 

 for the farmer : sometimes ground tobacco at the base of the plants is 

 used as a repellant and this is good if it be ground fine Sometimes the 

 beetles are driven with air-slaked lime or plaster, and this method is 

 general in parts of Gloucester and Salem Counties. Occasionally 

 carbolized lime or plaster is used, and sometimes kerosene or turpentine 

 is mixed with plaster. All these are good, and- the best is that which 

 succeeds best with the individual farmer. 



D. atripennis Say. Hudson Co. (1,1), Caldwell (Cr), Ft. Lee (Sf). 



PHYLLOBROTICA Redt. 



P. discoidea Fabr. Woodbury, Brigantine, Anglesea, VI, 23- VII, 12 (W), 

 Hudson Co. (LI), Newark, Orange Mts. (Bf), Fort Lee (Bt). 



LTJPERODES Mots = LUPERTJS Geoff. 



L. meraca Say. Greenwood Lake, VI, 21 (Lv), Newark (Bf), Orange Mts. 

 VI, 10, Fort Lee (Bt), on wild rose (Hn) ; a general feeder (Ch). 



L. cyanellus Lee. Staten Island (Lg) ; occurs with the preceding and may 

 be confused with it in collections. 



