. Annual report. Entomological Society of Ontario; Insect pests; Insects -- Ontario Periodicals. 61. Pnv(,i,nxKHA Mite, a, dorsal, 6. ventral view of female, c, moiuti-parts , rf, /, <j, h, forms of tarsal appendages , e, ventral tubercles of male. is the instiuet which teaches this Wind larva to penetrate the soil in search of ; for the egg must necessarily be laid at the suif'acc. But though the underground enemies of its own class are few, I have discovered a mite which preys extensively upon this root-inhabiting type, and which renders efficient aid in keeping it in check in th
. Annual report. Entomological Society of Ontario; Insect pests; Insects -- Ontario Periodicals. 61. Pnv(,i,nxKHA Mite, a, dorsal, 6. ventral view of female, c, moiuti-parts , rf, /, <j, h, forms of tarsal appendages , e, ventral tubercles of male. is the instiuet which teaches this Wind larva to penetrate the soil in search of ; for the egg must necessarily be laid at the suif'acc. But though the underground enemies of its own class are few, I have discovered a mite which preys extensively upon this root-inhabiting type, and which renders efficient aid in keeping it in check in this country. This mite (Tyro glyphus phi/lhm'ne, Planchon & Riley, Fig. 41},} belongs to the same genus as the cheese and meal mites, and the species which infests preserved insects, and is such a pest in cabinets. At is the rule with mites, it is born with but six legs, but acquires eight after the first or second moults. It varies considerably in ibrm, with age, and in studying it with a view of distinguishing it specifically from other described species, I have noticed all the different tarsal characters shown as </,/, g and h, (Fig. 46). and on which distinct genera have been founded. Mites pre- .sent themselves in such different forms that the \' ~tw '-aK= i_ » „"«.. ^ tr-i^ adolescent stages of the same species have -^!S. Iro ^^\ f^ yjj3^^^-/r ^^^ '^'^'^ ° made to represent distinct families by ^^^i^\t/ i^A^ ^ y%C^'yQll^ authors who never studied the development of ^^ r (&/*»Sb^ 1 /^fei\^ g| these beings. The species under consideration, when young, mostly contents itself with the altered sweets of the roots which rot from the punctures of Phylloxera, wh'le when older it preys by preference on the lice ; '• Direct Remedies. The leaf-lice, which do not play such an important part in the disease as was at first supposed, may be controlled with sufficient ease by a little care in de- stroying the first galls which appear, and in pruning
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Keywords: ., bookcentury1800, bookdecade1870, booksubjectinsectp, bookyear1872
