. First[-ninth] annual report on the noxious, beneficial and other insects, of the state of Missouri, made to the State board of agriculture, pursuant to an appropriation for this purpose from the Legislature of the state . received March 7th, 1S73, from Mr. F. , of Chillicothe, bears on this subject and is suggestive: Having been interested in your writings on Phylloxera, and notunderstanding the bad condition of my Catawbas, I examined them inthe spring of 1872, and found the excrescences on the roots and dead-ened portions, as you describe. This left no doubt in my mind thatthe lice
. First[-ninth] annual report on the noxious, beneficial and other insects, of the state of Missouri, made to the State board of agriculture, pursuant to an appropriation for this purpose from the Legislature of the state . received March 7th, 1S73, from Mr. F. , of Chillicothe, bears on this subject and is suggestive: Having been interested in your writings on Phylloxera, and notunderstanding the bad condition of my Catawbas, I examined them inthe spring of 1872, and found the excrescences on the roots and dead-ened portions, as you describe. This left no doubt in my mind thatthe lice had been at work. So I opened the ground, exposin c a goodlyportion of the roots, and thickly sprinkled leached ashes and a littlesulphur over the parts exposed, and replaced the dirt. I cut away alldead wood, and the sprouts from the trunk look well, and I think willproduce me a fair crop this year. Will report to you this fall again. THE OYSTER-SHELL BARK-LOUSE OF THE AFFLE—3li/tilas- pis poviicorticis N. Sp. Since thepublicationof the articleon this insectin my firstReport, seve-ral interest-ing and im-portant factsin its econ-omy havebeen reveal-I am now able to give a much clearer insight into the life-his-. 74 FIFTH ANNUAL REPOKT tory of the little animal which causes what is often called scurvyon apple-trees. ITS OCCURRENCE IN MISSOURI. From numerous facts stated, and from experiments made, in 1868,1had every reason to suppose that this insect could not thrive at anypoint south of St. Louis, and that it had, up to that time, not yet beenintroduced into the State. But, alas ! both these cherished notions havebeen dispelled like the baseless fabric of a vision, and I am very forci-bly reminded of the uncertainty of analogic reasoning, and how neces-sarily imperfect and partial human knowledge must always be! Theconclusions drawn from the facts at hand in 1868 were : 1st, that thisOyster-shell Bark-louse did not yet occur in the northern part of theState, though quite ca
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