Parliamentary Papers, Band 9H.M. Stationery Office, 1957 |
Im Buch
Ergebnisse 1-3 von 43
Seite 109
... spraying policy was modified . When an infected plant is found this plant and three circles of surrounding mats are sprayed , after which the infected plant is eradicated . The three circles of surrounding mats are given a further five ...
... spraying policy was modified . When an infected plant is found this plant and three circles of surrounding mats are sprayed , after which the infected plant is eradicated . The three circles of surrounding mats are given a further five ...
Seite 128
... spraying com- menced , using a formulation of DDT in dieseline and kerosene . Spraying has already had the effect of reducing the overt damage observable on fallen immature nuts to 19 per cent . compared with 50 per cent . in the ...
... spraying com- menced , using a formulation of DDT in dieseline and kerosene . Spraying has already had the effect of reducing the overt damage observable on fallen immature nuts to 19 per cent . compared with 50 per cent . in the ...
Seite 210
... spraying . Western Sokoto Malaria Control Pilot Project ( D. M. Langbridge , Chemist ) 35. Persistence of Insecticides on Mud Surfaces . An experiment has been designed to evaluate the effect of humidity on residual insecticides sprayed ...
... spraying . Western Sokoto Malaria Control Pilot Project ( D. M. Langbridge , Chemist ) 35. Persistence of Insecticides on Mud Surfaces . An experiment has been designed to evaluate the effect of humidity on residual insecticides sprayed ...
Inhalt
INTRODUCTORY | 6 |
Actual issues in respect of Research Schemes 19401957 | 18 |
CONTENTS | 140 |
19 weitere Abschnitte werden nicht angezeigt.
Andere Ausgaben - Alle anzeigen
Häufige Begriffe und Wortgruppen
acid acre Aden African Agriculture animals appointed breeding British Guiana carried cattle cent cocoa Colonial Development Committee continued crop Cyprus D.Sc Department Development and Welfare dieldrin Director disease East Africa economic effect experimental experiments exports Federation of Malaya fertility fever fish Fisheries Research forest Forestry Gambia Ghana Government grass haemoglobin Hong Kong important increase infection insecticides Institute investigation Islands Jamaica Kenya Laboratory larvae Locust London maize malaria Medical Research ment methods microfilariae mosquitoes Nigeria Northern Rhodesia Nyasaland obtained Organisation overseas pests plant problems production Professor programme progress projects Region Report Research Unit rice Rift Valley fever samples Sarawak Scheme School season Secretary seed Service sickle-cell Sierra Leone Singapore soil species spraying Station strains survey Tanganyika territories tested tion treatment trials Trinidad Tropical Trypanosomiasis Uganda United Kingdom University College vaccine varieties vector virus viruses visited West Indies yield