X SOME INSECTS INJURIOUS TO TRUCK CROPS. . 
Page. 
Fig. 9. The semitropical army worm: Work of larvae on "careless weed" in 
potato field 59 
10. The semitropical army worm: Field of late Irish potatoes, showing 
vines entirely stripped by larvae 60 
11. The semitropical army worm: Larvae eating bark of "careless weed;" 
also nymph of spined soldier-bug (Podisus maculiventris), predaceous 
on larvae of Prodenia eridania 61 
12. Hop flea-beetle (Psylliodes punctulata) : Larva and adult 72 
13. View of hopyard, showing how flea-beetles keep down vines 76 
14. Hop leaves, showing work of flea-beetle 77 
15. Work of flea-beetle after vines are grown 78 
16. Trained hop shoots stripped by flea-beetle 79 
17. Breeding and control cage in place over a hill 80 
18. A crew spraying hops in British Columbia 86 
19. Tarred catchers for hop flea-beetles 89 
