. 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. often until the fruit is ripe or even the leaves are falling. Furley (li) records that the dead leaves showing Psylla skins remain on the trees up to (Jhristmas, and in se^'eral orcliards they ^^â¢ere noticeable up to March. This bro\\'u appearance has gi\'en rise to an idea that tlie blossom has been struck l)y frost. That it is Psylla work we can tell by the presence of the small insects in the trusses, and later by their dried gr
. 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. often until the fruit is ripe or even the leaves are falling. Furley (li) records that the dead leaves showing Psylla skins remain on the trees up to (Jhristmas, and in se^'eral orcliards they ^^â¢ere noticeable up to March. This bro\\'u appearance has gi\'en rise to an idea that tlie blossom has been struck l)y frost. That it is Psylla work we can tell by the presence of the small insects in the trusses, and later by their dried grey skins or exnvia:' which remain attached to the strigs and leaves until the end of the season (Fig. l^SO). These are mostly pupal skins. It is probable that some of the supposed damage by Sucker is due to the Th'own Hot Fungus. jSTot all varieties are similarly affected. The Fcklinville may be pointed out as suffering more than any other, possibly owing to the stalks of the blossom being so short. The Blenheim Orange, tlie "Wellington, Lord Grosveuor, Lane's Prince Albert and Quarenden we have seen quite ruined by this piest, Imt in all parts tlie Worcester Pearmain apjpears to snffer least. Life-Histoi;y and PIabits. The adult Fsylhi mull (Fig. l-!8) is winged in both sexes. Tliey occur from the middle of ATay till tlie middle of Novemljer. Tlie colour is very variable. At first they are greenisli-yellow to green, the legs paler and the feet blackish ; later they change, some become brownish-yellow, others show dark markings, with even red and yellow. The wings are â quite tran,s]mrent and have greenish or green- ish-yellow veins, and they fold over the body in tectiform manner when- the insect is at FIG. â.iUDLT APPLE SCCKEU (/'s,l//l'n In length they vary from j-q TO to J- inch. The venation of the wings is very characteristic and will at once separate this insect from other fruit "" Leaf Hoppers" with which they may be confused owing to
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Photo credit: © The Book Worm / Alamy / Afripics
License: Licensed
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Keywords: ., bookcentury1900, bookdecade1900, booksubjectinsectpests, bookyear
