Oyster - Shell Bark Louse

In raauy sections of tlio country tlie appla scale or bark louse is yerj common and injurious, especially ia orchardg wliero the growth has beca stunted or weakened by a dampaoil or inpertect drainage. It is often callod th "ovster ulifll hark loase," on aecount ol tht! reseinblance f tlu' Hcale to in oyntor iht'll (No, Tj. '"'IMicMi1 seules are u'mut ao eighth of an inch long, of au ashen gray color, uuidi like tle bark to wliicli they are flrraly attached. On Uiting the fullgrown scale, the laat o[ August or the lst of September, the louse will bo found inside, at the stnalletjt end (covered by, hut iLot attached to, tlie scale), wLiile in Uio target end may bo found fifty or mure white oval-shaped eggn (Ko. 1 ). The louse eoon dies, but the eggs remain beneath the scale durinji the winter, until about the lst of June, wlien they begin to hatch. The young Bcale iimett are very smaU Bat, white (No. 2) and ftirnished with cyes, horns, six legn and a beak or sticker. They run about with great activity for two or three dayH, and then insert t Ju-i r beaks into the bark or skin of the fruit, and become permanently tixed at tliis point. The female louoe resembles a flat, fieshy magfrot, aud is of a greeninti color (Non. 3, 4). The male louse appean in June or luU'. It has liiriit colored wings, and the general color of it body h a palé ash or brown, like the original scale, proteeting it. Ah the nuit ure acal) is tou-li aiul not easily penetraled, tliis pest iu moet r.iulitv (1 -h ( rov 'i daring; the short tima l)iit ween the h.i ti'hin: out of th gg and the forniatioo of tho new cale. At thifl [icridil a strong" eoI II t lol] ítí H.;li 11 V0, a ppl od to the li? a nihfH v, it h a brutifa in very nal. Wliere tliu bmlien and Urger lmib oí tlie treea are afectad, ti; cales may be deatrojrfld b_v moWteoing the bark witli i soapy Bnlutlon, aml Uien Kraping with a blunt knife, or rubbing tbo bark witli ii coant lanvasa. After craping apply a Holution 'f Bonp and ye. Prof. A. J. ('ook, of the Agricultural College of Michigan, suggests in such cases that crude carbolic ariil bo udded to tho soap. Ui pi n i tulioat In ( the boiling point one quart of Boft sonp to two gallons of water, and whilo still hot add a pint of crude carbolic acid, and apply aa beforo direct cd. TIiíh mixture of carbolic acid and soap is of triple valué. It not onljr killa the dreaded Hoe bat kaepi off the borers! The flirures in tho nbovo cuts are hlRhlr mntriiittril: tho natural length beinir approximtitcly represente! bv tho 8oe betweon tl. e pitrallel linos al the slilo of each flgurc. I, forra of the egg: 2, larva, as tl n)ii'ai-s iiKimiK' "" tho twiKS: ! larva sooa after bcouiinntr Bxed; i, amx'iirancc! whon the scalo ha formad; 5, form of louse, (back view) after losingr it fcot: 6, loriu of tull-irrowii femalo louso; 7. fully formed stiilu, shuwintt louse uiKicriuath. 8, Riitciina of larva, ahowintt joinl-s; 9, section of liinb, ehowniK the MUM as tuey uypcur trota August to Juno.