Parliamentary Papers, Nide 9H.M. Stationery Office, 1957 |
Kirjan sisältä
Tulokset 1 - 3 kokonaismäärästä 43
Sivu 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 ...
Sivu 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 ...
Sivu 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 ...
Sisältö
INTRODUCTORY | 6 |
Actual issues in respect of Research Schemes 19401957 | 18 |
CONTENTS | 140 |
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