First report on economic zoology / by Fred. V. Theobald.

  • Theobald, Frederick V. (Frederick Vincent), 1868-1930.
Date:
1903
Catalogue details

Licence: In copyright

Credit: First report on economic zoology / by Fred. V. Theobald. Source: Wellcome Collection.

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    CONTENTS. PAGE PREFACE iii INTRODUCTION—The Classification of Animals from the Point of View of Economic Zoology xi PART I. REPORTS ON AGRICULTURAL ZOOLOGY TO THE BOARD OF AGRICULTURE. GROUP E. Sub-group B.—Section I. ANIMALS INJURIOUS TO AGRICULTURE. Cereal Pests : Eel-worm disease in oats; The Frit Fly (Oscinis frit) on oats ; Smut in Barley and Insects. Root Crop Pests : SilpjJia ruyosa on Turnips, and other Silphida?; Notes on Surface Larvae; I'he Pigmy Mangold Beetle (.Atomaria linearis); Black Fly on Mangolds (Aphis atriplicis, Linn.); Flies (Bibionidx) on Mangolds; Muscid Larvae attacking roots ; Chafer Larva? (.Melolonthidx); Leather Jackets (Tipulidx); The Green Rose Chafer on Beans and Currant Bushes. Potato Pests : Myriapoda in Potatoes ; Wire-worm (Agriotes murinus) in Potatoes; A new Potato Feeder, the Cinnabar Moth (Euchelia jacobex). Mustard Pests : Destruction of the Mustard Beetle. Fruit Pests : An enquiry re Gall Mites in Black-currant bushes; The Apple-Blossom Weevil; Strawberry Beetles ; Slug-worms on Fruit trees and Hedgerows ; Maggots in Apples; Maggots in Imported Apples; Infestation of Fruit trees by Winter Moth caterpillars; The Pear Midge (.Diplosis pyrivora); Scale disease and “ false scale ” amongst fruit trees and bushes; Scale Insects on Plum Trees ; The Apple Bark-louse or Mussel Scale (Mytilaspis pomorum); Eggs on Apple trees, and a further remedy for Mussel Scale ; Aphides (A. mall) on Apple trees ; The Peach Aphis; A general wash for Fruit trees; Further Information re Winter Washing of Fruit trees; Canker fungus (Nectria ditissima) on Apple twigs mistaken for insect work ; Enquiry as to poison for Moles ...... 3-30 Sub-group B.—Section II. ANIMALS INJURIOUS TO HORTICUL- TURE. Land Bugs on Chrysanthemums (Lygus pratensis) ; The destruction of Ants ; The destruction of subterranean insects and other ground garden pests; Directions for the employment of the Gas 't reatment under glass ; White Grubs or Maggots (Phorbia brassicx) causing great damage amongst cabbage, carrots and broccoli, and exterminating Cabbage-fly . . 30-36
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