Die obligatorische Krankenversicherung

Kritische Studien zum wirtschaftlichen Problem des Zwei- und Dreischichtensystems in Hochofenbetrieben

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Monograph

Identifikator:: 176840707X

URN:: urn:nbn:de:zbw-retromon-149526

Document type:: Monograph

Title:: Die obligatorische Krankenversicherung

Place of publication:: Genf

Publisher:: Internationales Arbeitsamt

Year of publication:: 1927

Scope:: 892 Seiten

Digitisation:: 2021

Collection:: Economics Books

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Document type:: Monograph

Structure type:: Chapter

Title:: Erster Teil. Das Anwendungsgebiet

Collection:: Economics Books

PART 1. NATURAL OCCURRENCE OF MAJOR PESTS IN RELATION TO :— (a) Flora. (b) Nature of the soil. (¢) Climatic factors—altitude, distribution and amount of rainfall, temperature and humidity. (See page 179.) OCCURRENCE UNDER CONDITIONS OF CULTIVATION :— (a) Effect of cultivation and implements. (b) Rotations. (ec) Size of area under control. (See page 179.) BoLLwoRrMS : VALUE OF CONTROL BY :— (a) Natural enemies. (b) Elimination of food plants. (¢. Implemental cultivation. ( Rotations. Spraying and dusting. Trapping adults. («, Hand-picking or collecting larvee in the field. (h) Trap cropping. (i) Close season. Lire HISTORIES : — (a) Active period of insect. (b) Alternative food plants. (¢) Range of flight of adults (See page 174.) SupaN BOLLWORM : — (a) General history in places where it is not considered of major importance. (b) Geographical distribution. (¢) Wild food plants. (See page 177.) INFORMATION OF GENERAL INTEREST IN CONNECTION WITH SUCH MAJOR PESTS AS PINK BOLLWORM, APION, ETC. (See page 176.) INTERNAL BOLLROT TRANSMITTED BY STAINERS AND OTHER insects. (The Secretary for Agriculture, Union of South Africa, asked especially for information on this subject.) Value of control by:— (a) Natural enemies. (b) Elimination of food plants. (¢) Trapping. (d) Hand-collecting. (See page 178.) ' APHIDS AND JASSIDS: VALUE OF CONTROL BY: (a) Natural enemies. (b) Plant selection for resistance. (¢) Spraying and dusting. (d) Cultivation. i (See page 180.) (All the above items have been raised by the Empire Cotton Growing Corporation.) 21

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