. Report of observations of injurious insects and common farm pests, during the year ... : with methods of prevention and remedy . hytoptus ribis 43 Woolly Currant Scale Pulvinaria ribesUe 48 Mustard. Gamma or Silver Y-Moth . . Pbisia gamma 53 Pear. Pear Leaf-blister Mites .... Phyloptvs pyri 59 Pear Gnat Midge Diplosis pyrivora 63 Plum. Splint or Sap-wood Beetle . . Scolytus pruni 69 Mottled Fruit-tree Tortrix Moth . Penthina varieyana 73 Pocket or Bladder Plums . . Exoascus pruni * 76 Potato. Deaths-head Moth Acherontia atropos 82 Raspberry. Raspberry Stem-bud Moth . . Lampronia rubiella 85
. Report of observations of injurious insects and common farm pests, during the year ... : with methods of prevention and remedy . hytoptus ribis 43 Woolly Currant Scale Pulvinaria ribesUe 48 Mustard. Gamma or Silver Y-Moth . . Pbisia gamma 53 Pear. Pear Leaf-blister Mites .... Phyloptvs pyri 59 Pear Gnat Midge Diplosis pyrivora 63 Plum. Splint or Sap-wood Beetle . . Scolytus pruni 69 Mottled Fruit-tree Tortrix Moth . Penthina varieyana 73 Pocket or Bladder Plums . . Exoascus pruni * 76 Potato. Deaths-head Moth Acherontia atropos 82 Raspberry. Raspberry Stem-bud Moth . . Lampronia rubiella 85 Sheep. Sheeps Nostril Fly (Estrus ovis 89 Worms. Flatworm, Land Planarian . . Bipalium keivense 95 SHORT Apple-sucker, Chermes .... Psylla niali 99 Gooseberry. Gooseberry and Currant Sawfiy . Nematus ribesice 101 Pea. Cabbage Moth Mamestra brassica 103 Pine. Pine-shoot Tortrix Moth .... Retinia buoliana 105 * Pocket Plums —a fungoid attack; for reason of insertion, see p. 78. NOTES OF OBSERVATIONS OF INJURIOUS INSECTS COMMON CROP PESTS 1900. APPLE. Pith. Moth. Laverna atra, Haw.; L. hellereUa, Laverna atra.—1 and 2, moth, natural size and magnified ; 3, chrysalis in tunnelledshoot, magnified ; 4, chrysalis in bud. During the past season the presence of Pith Moth caterpillars wasreported as much more injurious than in any previous year. In 1889enough observation was sent to me to show its presence in the country,in one locaHty near London ; in 1898, observations were sent from thesame locahty of tbe effects of the attack being noticeable; and fromSouthport, Lancashire, and from New Cross, on the edge of Surreyand Kent, I had information of what was, in the first case, certainlypresence of this Laverna atra, and in the second, apparently so, asinjurious to clusters of Apple blossom buds by tunnelling of the stemjust beneath them. But in both instances the damage was only B 2 APPLE. [1900 mentioned as a personal observation of the writers, not as a trouble
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