. Annual report, including a report of the insects of New Jersey, 1909. 348 REPORT OF NEW JERSEY STATE MUSEUM. G. luteola Miill. The elm-leaf beetle; common throughout the State, and usually more or less injurious to city shade trees. There is only a single brood in most of the State, and thorough spraying with arsenate of lead, 1 lb. in 20 gallons of water, will prevent injury. One spraying should be made when the beetles first begin to feed, the second when the eggs begin to hatch, and the effort should then be to hit the underside of the leaves. MONOXIA Lee. M. puncticoliis Say. On salt mea
. Annual report, including a report of the insects of New Jersey, 1909. 348 REPORT OF NEW JERSEY STATE MUSEUM. G. luteola Miill. The elm-leaf beetle; common throughout the State, and usually more or less injurious to city shade trees. There is only a single brood in most of the State, and thorough spraying with arsenate of lead, 1 lb. in 20 gallons of water, will prevent injury. One spraying should be made when the beetles first begin to feed, the second when the eggs begin to hatch, and the effort should then be to hit the underside of the leaves. MONOXIA Lee. M. puncticoliis Say. On salt meadows, from the Passaic to Cape May VI, VII; usually not rare; strictly maritime. DIABROTICA Fig. 140.—Spotted cucumber beetle, Diahrotica 12-punctafa: a, egg; b, larva; c, holes drilled in corn stalks; d, pupa; e, adult: all enlarged. 12-punctata Oliv. Common throughout the State IV-X on a great variety of plants and sometimes injuring cucurbs; larva in roots of corn and grasses. vittata Fab. The "striped cucumber beetle"; throughout the State; common and often seriously injurious to cucurbs. The beetle eats into the stem at the surface, the larva mines in it a little under- ground. Most of the injury is done by the beetles, which attack the plants soon after thej' are up, and a great variety of methods are employed to prevent it. Sometimes carbolized lime or lime and tur- pentine are applied in the hill, or a dead fish, or freshly- ground 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 New Jersey state museum. [from old catalog].
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