The century supplement to the dictionary of gardening, a practical and scientific encyclopaedia of horticulture for gardeners and botanists . Fig. 185. Male, Female, Caterpillar, and ofGreen-Veised White Butterfly (Fieris napi). greater assistance, however, is given by certain hyme-nopterous parasites, whose larvse live parasiticaUy in thebodies of the larvae and pupae of these Pieridse. Theparasitic laxv« subsist upon the lymph of their unfortunatehost, which, after a time, usuaOy sickens and dies, and theyellow cocoons of the ichneumon-fly are laid upon bothlarv« and pupa; of Whit
The century supplement to the dictionary of gardening, a practical and scientific encyclopaedia of horticulture for gardeners and botanists . Fig. 185. Male, Female, Caterpillar, and ofGreen-Veised White Butterfly (Fieris napi). greater assistance, however, is given by certain hyme-nopterous parasites, whose larvse live parasiticaUy in thebodies of the larvae and pupae of these Pieridse. Theparasitic laxv« subsist upon the lymph of their unfortunatehost, which, after a time, usuaOy sickens and dies, and theyellow cocoons of the ichneumon-fly are laid upon bothlarv« and pupa; of White Butterflies. These cocoonsshould never be removed. Apanteles glomeratus is oneof the most useful hymenopterous parasites in keepingthese Butterflies in check. CABBAGE WEEVIL {Ceuthorrhytu^hussidcicoUis). The eggs of this very common Beetle aredeposited in early summer, and the grubs hatch out inabout ten days. They at once set to work, and gallsof about the size of Hazel-nuts are eventually full-fed. the grubs pupate in the soU, or it maybe in the roots of the attacked plant. Many preparationshave been advocated
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Keywords: ., bookcentury1900, bookdecade1900, booksubjectgardeni, bookyear1901
