. The encyclopedia of practical horticulture; a reference system of commercial horticulture, covering the practical and scientific phases of horticulture, with special reference to fruits and vegetables;. Gardening; Fruit-culture; Vegetable gardening. Fig. 1. The Raspberry Horn Tail, Hartipia cressoni. a, adult female; b, adult male: c, well-developed pupa; d, very youne pupa ; e and f, larvae. (Bssigr, M. B. Cal. Hort. Com.) Food Plants The native host of this insect is prob- ably the wild rose. Raspberries suffer most from the attacks. Cultivated roses, blackberries and loganberries are also
. The encyclopedia of practical horticulture; a reference system of commercial horticulture, covering the practical and scientific phases of horticulture, with special reference to fruits and vegetables;. Gardening; Fruit-culture; Vegetable gardening. Fig. 1. The Raspberry Horn Tail, Hartipia cressoni. a, adult female; b, adult male: c, well-developed pupa; d, very youne pupa ; e and f, larvae. (Bssigr, M. B. Cal. Hort. Com.) Food Plants The native host of this insect is prob- ably the wild rose. Raspberries suffer most from the attacks. Cultivated roses, blackberries and loganberries are also food plants. Control Measures necessary to remove or de- stroy the eggs before the young larvae hatch should be inaugurated. As the eggs are very tender and their locations plain, great numbers may be quickly de- stroyed by exerting a slight pressure over them with the fingers, which in no way injures the shoot. Cutting out in- fested canes is also recommended. E. O. EssiG Oyster-Shell Scale. See Apple Pests, Raspberry Cane Maggot Phorhia ruhivora Coq. A. L. LOVETT The new canes of the raspberry, logan- berry, dewberry and blackberry are some- times observed in the spring drooping in a characteristic manner. If the affected shoot is examined carefully, a bluish ring will be observed at the base of the wilted tip, and by cutting into the inte- rior a small, whitish maggot is disclosed. The adult of this maggot is a fly, sim- ilar in appearance to the house fly, though somewhat smaller in size. These flies appear in early April and are pres- ent through May and June. The females deposit eggs on the canes of their host. The egg is usually placed in the groove formed by the branching off of the leaf axil from the growing stem. The egg is white in color, elongated and of a fair size. The maggot which hatches from this egg crawls down the cane a short distance and bores its way through the surface of the stem and into the pith. The maggot feeds down the cane for a short distance, it
Size: 1693px × 1476px
Photo credit: © The Book Worm / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1900, booksubjectfruitculture, booksubjectgardening
