A Note on Antestia, Control With D.D.T. and Bordeaux Mixture

Abstract

The Coffee Research Station is closely surrounded by other coffee, where control of Antestia is by no means so thorough as it is on the Station,yet the figures show that very little re-infestation takes place from outside. Further observations are obviously necessary, but the interest of these figures is in the suggestion they give that routine spraying with Bordeaux-D.D.T., carried out at the normal times for Bordeaux spraying, may be effective in a very short time in virtually eliminating Antestia from the coffee. It is true that even if Antestia is completely eliminated from the coffee, re-infestation will occur, either from adjacent coffee or from native host plants, but such re-infestation will be slow, and it may be that the extra expenditure entailed in attempting elimination would be more than offset by a reasonably long period during which control measures may be unnecessary.