The Mark Lane express, agricultural journal &c . Farmers who do nob avail themselves of the useof the microscope (which is an instrument possess-ing immeasurably valuable properties for them)may sometimes nave reason to express surprisewhen their apparently robust corn commences toshow signs of deterioration. They may oftenhave succoured ib to perfection, almost to thepoint of ripening, meantime preventing theattacks of such pests as the Hessian, gout, andsaw flies, until bhe ears begin bo develop; yet,in spit3 of their strenuous efforts, very evidentsymptoms of weakness exist to interfero wit
The Mark Lane express, agricultural journal &c . Farmers who do nob avail themselves of the useof the microscope (which is an instrument possess-ing immeasurably valuable properties for them)may sometimes nave reason to express surprisewhen their apparently robust corn commences toshow signs of deterioration. They may oftenhave succoured ib to perfection, almost to thepoint of ripening, meantime preventing theattacks of such pests as the Hessian, gout, andsaw flies, until bhe ears begin bo develop; yet,in spit3 of their strenuous efforts, very evidentsymptoms of weakness exist to interfero with theirhones concerning the future A greatly magnified head of Corn Thrips(larva), revealing Its curious antennae orfeelers. Those of an adult are slightlydifferent. Tivo Thrips running ovar the outlets offlowers of corn, the latter of which areshown respectively close! and open, withpollen emerging. These are larvae. Close examination of a number of the earsr3veals the fact that many of the seeds are in ashrivelled condition, from which ib seems im-possible bo expecb recovery. Labe-sown wheat isTable more especially to these defects than isearly-sown. As these particular disasters occurchiefly in sultry, thundery weather, many farmersare apt to spring to conclusions respecting thematber, and bo associabe the damage entirely withbhe weather. There is some excuse for the favouring of thismistake, because, although the injuries are due toinsects, the latter are so minute as to escape obser-vation unless they are purposely sought for. It isusual to shake the attacked ears over a sheet ofclean whibe paper, when there will
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Keywords: ., bookcentury1800, booksubjec, booksubjectagriculture, bookyear1832
