. The insect and other allied pests of orchard, bush and hothouse fruits and their prevention and treatment . Insect pests; Fruit. Insects Injurious to the Apple. 155 fresh colonies, ami so tlie increase gnes on nntii lale in tlie autnnm. I)aring this time, many lea\'es ih'v np ami thi'ir curled Form encloses many of tlie dolpliins, wliich are apparently thiis killed. Late in (he autumn a progeny ol ^^â¢ingless mnles and females occur. The femiile is ^â¢ely small, cil'lcri ]iltli_- naire than 1 tV mm. long, var>'ing in cnlour froiu dull vcllowisli-green to green, head slightly lirownish, wi
. The insect and other allied pests of orchard, bush and hothouse fruits and their prevention and treatment . Insect pests; Fruit. Insects Injurious to the Apple. 155 fresh colonies, ami so tlie increase gnes on nntii lale in tlie autnnm. I)aring this time, many lea\'es ih'v np ami thi'ir curled Form encloses many of tlie dolpliins, wliich are apparently thiis killed. Late in (he autumn a progeny ol ^^â¢ingless mnles and females occur. The femiile is ^â¢ely small, cil'lcri ]iltli_- naire than 1 tV mm. long, var>'ing in cnlour froiu dull vcllowisli-green to green, head slightly lirownish, with two dark spnts; antenna.' pide at the hase, dusk.\' apically, legs piale green, excejit tin.' a]!ical ]iorti(in irf the tiliia-, the taisi and knees, which are l)rii\vn; cornich.'S lilaclc, s(raiuh1, tapering; genitalia dusk\' with t«'o dark spots in frcait, some sIkjw paler sides and are darker green according to their age. The\' are closely attached to the underside of the apiple leaves. Most occur close against a rih or A'ein of the leaf. ^Vt the same time small vsinglcss ]iialcs appear. These are often not more than one-hfth the size of the autumn o\-ip;ir(.)US females. I'nlike most male aphides, it lias a longish pnohoscis, nearly reacliing to the second alidominal segment ami which is hlack in colour; it lias rather long dark hro\\'n legs. In colour, the male ^â aries from vellowish- lirown to dull )â ello^visll, witli dark head, long Ijlackish antenna' ; cornicles and apex of hody lilack, the former straight, Tlie=e sexual forms wei'e noticed last year first on the 27tli of (Jctoher, nmi on until the Ttli (.if Deceniher. The females commenced to deposit eggs early in Movemher and con- tinued to do so for over a montli. i\Iost placed their hlack ova on the shoots, a lew at the base of finds, and the axils of As many as three hundred eggs ma>- lie found on one shoot. The ova remain all the winter, and can then easily lie seen hy their shiny shells. C
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Keywords: ., bookcentury1900, bookdecade1900, booksubjectinsectpests, bookyear
