M 140
VI.-ACTION TAKEN FOR THE ABATEMENT OF LOCAL MOSQUITO NUISANCES.
Mount Kellet and the Peak.
114. Action was taken to ascertain the cause of the plague of mosquitoes which every spring for years past caused so much annoyance to the occupants of those dwellings situated within half a mile of Mount Kellet.
115. On the western side of the Mount Kellet ridge is a stream which flows into Mount Kellet Bay, the lower portion of which stream is polluted by drainage from cattle byres. C. fatigans larvae were found in enormous numbers in the polluted pools, but none were found above the pollution. The polluted portion was trained by removing stones and small boulders, and afterwards oiled.
116. On the eastern side of Mount Kellet ridge is a stream which flows into Aberdeen Bay which is also polluted by drainage from pigsties, cess pits etc. Larvae of C. fatigans were found in the pools. After the aforementioned stream had been dealt with, C. fatigans could still be caught on the Mount Kellet area in such numbers, when the second stream was dealt with, the nuisance ceased.
117. The anti-mosquito measures were carried out by coolies of the Sanitary Department working under the direction of the Assistant to the Malariologist.
Pokfulam.
118. At the Dairy Farm, Pokfulam, a cess pit discharges into the stream which receives the overflow from Pokfulam Reservoir and the drainage from Pokfulam Village. C. fatigans bred plentifully in the polluted pools. Between Victoria Road and Waterfall Bay, water-cress was grown in the bed of this stream, and irrigation ditches led from the stream into various wet cultivations. C. fatigans larvae were found in numbers in the water-cress beds and in the wet cultivation.
119. The Assistant to Malariologist persuaded the market gardeners to cease cultivation of water-cress in the stream, so that it could be cleared and oiled, and also arranged with them to dry out the wet cultivations for a few hours one day a week. Practical demonstrations were given to these people of the development of mosquitoes from larvae and pupae collected and kept in bottles.
M 140
VI.-ACTION TAKEN FOR THE ABATEMENT OF LOCAL MOSQUITO NUISANCES.
Mount Kellet and the Peak.
114. Action was taken to ascertain the cause of the plague of mosquitoes which every spring for years past caused so much annoyance to the occupants of those dwellings situated within bali a mile of Mount Kellet.
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115. On the western side of the Mount Kellet ridge is a stream which flows into Mount Kellet Bay, the lower portion of which stream is polluted by drainage from cattle byres, C. fatigans larvae were found in enormous numbers in the polluted pools, but none were found above the pollution. The . polluted portion was trained by removing stones and small
boulders, and afterwards oiled. -
116. On the eastern side of Mount Kellet ridge is a stream which flows into Aberdeen Bay which is also polluted by drainage from pigsties, cess pits etc. larvae of C. fatigans were found in the povis. Aller the ins. mendoned stream had been
dealt with, C. fatigans could still be caught on the Mount Kelet area in sua umiders, when the second stream was dealt with, the nuisance ceased.
117. The anti-mosquito measures were carried out by coolies of the Sanitary Department working under the direction of the Assistant to the Malariologist.
Pokfulam.
118. At the Dairy Farm, Pokfulam, a cess pit discharges into the stream which receives the overflow from Pokfulam Reservoir and the drainage from Pokfulam Village, C. fatigans bred plentifully in the polluted pools. Between Victoria Road and Waterfall Bay, water-cress was grown in the bed of this stream, and irrigation ditches led from the stream into various wet cultivations. C. fatigans larvae were found in numbers in the water cress beds and in the wet cultivation.
119. The Assistant to Malariologist persuaded the market gardeners to cease cultivation of water-cress in the stream, so that it could be cleared and oiled, and also arranged with them to dry out the wet cultivations for a few hours one day a week. Practical demonstrations were given to these people of the development of mosquitoes, from larvae and pupae collected and kept in bottles.
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