. Annual report of the Regents. New York State Museum; Science. 30 NEW YORK STATE MUSEUM Treatment: capture the butterflies with nets. Spray young cabbage with poison, older ones with hellebore or pyrethrum water. Dust with lime. 60 Cabbage thrips (T h r i p s t a b a c i). Cabbage and lettuce frequently show white spots as though blasted, caused by minute yellowish or brown insects. These little creatures are scarcely visible to the unaided eye. Treatment: spray affected plants at the beginning of the trouble with kerosene emulsion or a soap Fig. 52 Rhubarb curculio: a adult beetle
. Annual report of the Regents. New York State Museum; Science. 30 NEW YORK STATE MUSEUM Treatment: capture the butterflies with nets. Spray young cabbage with poison, older ones with hellebore or pyrethrum water. Dust with lime. 60 Cabbage thrips (T h r i p s t a b a c i). Cabbage and lettuce frequently show white spots as though blasted, caused by minute yellowish or brown insects. These little creatures are scarcely visible to the unaided eye. Treatment: spray affected plants at the beginning of the trouble with kerosene emulsion or a soap Fig. 52 Rhubarb curculio: a adult beetle; c newly hatched larva; (Z full-grow larva; e pupa—all about twice natural size (after Chittenden, U. S. dep't agr., dlv. ent., bull. 23, n. s.) 61 Rhubarb curculio (Lixus concavus). Wilting rhubarb leaves and punctures in the leaf stems are usually caused by a nearly cylindric, black, extremely ^^ hard shelled" beetle with more or less of a golden bloom on it. The grubs burrow in the stems and leaf stalks of dock as well as of rhubarb. Treatment: the beetles can be collected and destroyed by hand whenever injurious. They are abroad in June. 62 Tarnished plant bug (Lygus praten- s i s). Small yellowish and black bugs about 1 inch long, frequenting many plants and in- juring most garden crops and some trees. A most serious injury by this pest is the exten- ?11,. p TIT LI Fig. 53 Tarnished plant sive blastmg of peach buds on nursery stock, bug (after miey). 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 York State Museum; University of the State of New York. Board of Regents. Albany : J. B. Lyon, State Printer
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Keywords: ., bookauthorne, bookcentury1800, bookdecade1880, booksubjectscience
