THE GRAPE ADOXUS 



557 



If there is a breeze blowing the cage can be operated with the 

 open side facing the wind and practically no hoppers will escape. 

 If, however, the day is calm and-warm and the hoppers are parti- 

 cularly active a curtain can readily be dropped over the open side 

 as the cage is pushed on to the vine, and it will prevent any from 

 escaping. 



The V-shaped opening which might allow hoppers to drop to 

 the ground in front of the vine can be covered with canvas, as fol- 

 lows : Take two pieces of canvas about the shape of the opening 

 and a little wider. Double this once on itself and between the two 

 layers sew in pieces of three-fourths inch rubber tubing trans- 

 versely. These are then firmly tacked on the sides of the opening 

 as shown in the engraving. This will allow the cage to be pushed 

 in on the vine and the flexibility of the tubing will bring the can- 

 vas immediately into position again. This with the curtain in 

 front, shuts off all possibility of escape. 



False Chinch-Bugs. Small, grayish-brown insects (about one- 

 eighth of an inch long when fully grown), which injure the vine 



Grape leaf showing characteristic work of the adoxus beetle. 



