Insect pests of farm, garden and orchard . dually drivingthem into the field adjoining. The Beet Leafhopper * Very serious loss to the sugai-beet industry has occurred inColorado and Utah from a condition known as curly leaf or blight. Investigations made by Professor E. D. Ball haveshown that the curly leaf is undoul)tedly caused l)y the presenceof immense numbers of small leafhoppers, from 10 to 100 oftenbeing found on a plant in ])adly infested fields. The curly leafcondition does not seem to result, however, except when tiie soilhas become dry and heated, and where plants are shade<l or
Insect pests of farm, garden and orchard . dually drivingthem into the field adjoining. The Beet Leafhopper * Very serious loss to the sugai-beet industry has occurred inColorado and Utah from a condition known as curly leaf or blight. Investigations made by Professor E. D. Ball haveshown that the curly leaf is undoul)tedly caused l)y the presenceof immense numbers of small leafhoppers, from 10 to 100 oftenbeing found on a plant in ])adly infested fields. The curly leafcondition does not seem to result, however, except when tiie soilhas become dry and heated, and where plants are shade<l or * Eutettlx tenella Baker. See E. D. Ball, Bulletin 66, Part IV, Bureaur Entotiiology, U. S. Dept. Agr. 340 INSECT PESTS OF FARM, GARDEN AND ORCHARD irrigated the damage by the leafhoppers does not seem to producetlie same tioiiMc Siiuihir injury has been noted in parts ofOregon, bui not of so serious a nature. The l»cel-leailiopper is a pale yellowish-green species (), one-eighth to three-sixteenths an inch long, and when.
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Keywords: ., bookcentury1900, bookdecade1910, bookpublisheretcet, bookyear1912
