. Bulletin. Insects; Insect pests; Entomology; Insects; Insect pests; Entomology. THE HOP FLEA-BEETLE. 89 This method captures a satisfactor}'' percentage of the beetles and shoidd 1)0 comparatively inexpensive. But unfortunately the re- peated operations which are iiecessary bring the cost to a high figure. It cost Mr. Hulbert last year approximately $ per acre for each operation. He Avent OA^er his vines six times, and some parts of the 3'ard eight or ten times. He expected to go over it at least twice more, so that the total cost Avould be from $10 to $15 per acre. In figure 19 a portio
. Bulletin. Insects; Insect pests; Entomology; Insects; Insect pests; Entomology. THE HOP FLEA-BEETLE. 89 This method captures a satisfactor}'' percentage of the beetles and shoidd 1)0 comparatively inexpensive. But unfortunately the re- peated operations which are iiecessary bring the cost to a high figure. It cost Mr. Hulbert last year approximately $ per acre for each operation. He Avent OA^er his vines six times, and some parts of the 3'ard eight or ten times. He expected to go over it at least twice more, so that the total cost Avould be from $10 to $15 per acre. In figure 19 a portion of a hop field is shoAvn which illustrates the tarred '* boards '' in place for use. The flea-beetles arc dusted off of the vines upon these tarred receptacles with wisps of ha}-, as. Fig. 19.—I'ortion ol' hop lwU\ wi;.. ...,..;; in jihuf. Floa-boeUes ai. ,...,.>,,. r,,,.. wisps of hay from the vines onto tarred boards. (Original.) described above. All of the vines were tanglefooted, but the flea- l)eetles Avent up the poles and crossed over on the wires overhead until the tanglefoot Avas applied. Plate VII illustrates the method of cajituring the hop flea-beetle on tarred horse sledges, also by shaking the vines. Millions Avere captured in this Avay. CLEAX CVLTIVATIOX. Frequent stirring of the soil and other cultural operations seem, as yet, to be of no appreciable help, according to ^Nlr. Quavle. and the kind of soil also seems to haA'e little or nothing to do Avith the abun-. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original United States. Bureau of Entomology. Washington : G. P. O.
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