. Insect pests of farm, garden and orchard . Fig. 325.—The straw-berry weevil {Antho-nomus signatus Say)—?enlarged. (After Rileyand Chittenden, U. S. INSECTS INJURIOUS TO THE STRAWBERRY 457 the bud reniiiins moist and will not dry up as it would on the eggs hatch in from six to seven days and the small whitishlarvae feed on the pollen and later on the harder parts of the or four weeks are required for a larva to become full then forms a little cell in the bud, in which the pupal stage ispassed in from five to eight days, when the adult beetle emergesand cuts its wa
. Insect pests of farm, garden and orchard . Fig. 325.—The straw-berry weevil {Antho-nomus signatus Say)—?enlarged. (After Rileyand Chittenden, U. S. INSECTS INJURIOUS TO THE STRAWBERRY 457 the bud reniiiins moist and will not dry up as it would on the eggs hatch in from six to seven days and the small whitishlarvae feed on the pollen and later on the harder parts of the or four weeks are required for a larva to become full then forms a little cell in the bud, in which the pupal stage ispassed in from five to eight days, when the adult beetle emergesand cuts its way out. Thus the complete life cycle occupiesabout a month and in the District of Columbia the new generationof beetles appears during June. They are frequently found in. Fig. 326.—The strawberry weevil: a, b, spray showing work in bud and stem—natural size; c, outhne of egg; d, larva; e, head of same; /, pupa; g,bud opened to show egg on left and punctures made by snout of beetlethrough petals. (After Chittenden, U. S. Dept. Agr.) large numbers on strawberry flowers and on those of the horsemint (Monarda fistulosa), but the beetles soon seek hibernatingquarters, there being but one generation a year. Control.—As the larva? feed upon the pollen of the buds ofstaminate varieties, the staminate varieties are most injured,and injury may be avoided by growing as few rows of staminatevarieties as are necessary for fertilizing the rest of the bed. Indeedthe very early staminate varieties might iDe used as a trap cropfor attracting the weevils, which might be destroyed by coveringthe rows with stiaw and l)urning, or possibly by spraying with 458 INSECT PESTS OF FARM, GARDEN AND ORCHARD • arsenicals. By planting rows of early varieties, which flowerfre
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Keywords: ., bookcentury1900, bookdecade1910, bookpublishernewyo, bookyear1915