16 



NEW YORK STATE MUSEUM 



Treatment: the grubs are easily controlled by spraying with 

 poison, and, if this be done, there will be fewer beetles to fight 

 in the spring. Early injury by the beetles may also be prevented 

 by spraying the buds thoroughly, using one pound of poison to 

 75 gallons of water, or by hand picking. 



26 Grape vine plume moth ( O x y - 

 ptilus periscelidactylus). 

 Small, greenish, hairy caterpillars 

 webbing together terminal leaves. 

 The caterpillars' work is most ap- 

 parent the last of May or early June, 

 and when abundant they may cause 

 considerable injury. The delicate, 

 brownish, plume moths appear about 

 the middle of June. 



Treatment: pick and destroy in- 

 fesited tips. 



27 Eight spotted forester ( A 1 y p 1 a 

 octomaculata). Reddish, 

 black-ringed caterpillars about IJ 

 inches long feeding on grape vine 

 and Virginia creeper in spring. The 



parent insect is a beautiful black moth marked with eight yellow 



spots on the wings and with 



handsome orange tufts on the 



forward and middle pairs of 



legs. 



Treatment : handpicking ; 

 spray with poison. 



28 White flower cricket 

 (Oecanthus niveus). 

 Series of punctures in twigs of 

 of various kinds are made by 

 this insect for the reception of 

 its eggs. The injury is usually 

 too little to call for remedial measures, specially as the insects 

 are predaceous and beneficial, and should therefore be protected. 



Fig. 19 Grape vine plume moth: 

 a larvae; b pupa; d moth; c and. e 

 minor parts enlarged (after Riley) 



Fig. 20 Eight spotted forester: a caterpillar; 

 b enlarged segment of the same; c female moth 



