INJURIOUS AND BENEFICIAL INSECTS 



15 



Fig. 16 Light-lov- 

 ing grape vine beetle 

 (after Glover) 



June beetle. Occurs in immense numbers occasionally, and then 



it fairly riddles grape leaves. 



Treatment: dust vines with lime. Collect and 



destroy beetles. 

 24 Spotted grape vine beetle (P e 1 i d n o t a 



punctata). A large, yellowish brown, black 



spotted beetle about 1 inch long, resembling a 

 June beetle. Its size and 

 beauty attract consider- 

 able attention, though 

 the insect is rarely abun- 

 dant enough to do much 

 damage. The larva is 

 one of the white grubs, 

 and lives in decaying 

 roots and stumps of var- 

 ious trees. 

 Treatment: handpick- 



FiG. 17 Spotted grape vine beetle: a larvae; h pupa; 

 c adult beetle; d, 'e, f minor parts strongly magnified 

 (after Riley) 



mg. 

 25 Grape vine flea 



beetle (Haltica cha- 



lybeai). Greenish or blue jumping beetles about J inch long, 



feeding on buds, orbrown- 

 ish, black dotted larvae 

 about ^ inch long, skele- 

 tonizing leaves. The 

 beetles pass the winter 

 in crevices of bark, ap- 

 pearing with warm 

 weather, ready to attack 

 the opening buds. This 

 early feeding by the 

 adults causes the most 

 injury and should 

 be vigilantly guarded 

 against. The grubs be- 

 ^ ,o r. • fl V. .1 v> v gin their work about the 



Fig. 18 Grape vine flea beetle: a grubs working; => 

 b grub magnified; c earthen cell of pupa; d adult beetle iii i j-tit^^ 



after Riley) latter part of May. 



