City of Tshwane Health Department addresses mosquito infestation in Winterveld

The City of Tshwane Health Department has received several community complaints about a mosquito infestation in areas in the Winterveld area, specifically Wards 9 and 24. As the MMC responsible for Health, I would like to provide an update on the matter.

The Municipal Health Services Section of the department commenced investigations to determine the extent of the infestation. This included sampling the insects to determine the type of species invading the area. This approach was necessary to determine the type of intervention required.  Laboratory tests undertaken revealed that this mosquito species is not a disease carrier but can cause irritation due to the female insects that require blood to produce their eggs.

Among the possible identified causes of the infestation is the nature of the environment. A major section of the area is a wetland with a high water table. Stagnant water pools encourage the breeding of mosquitos. Further, the accumulation of refuse, which may include water-holding containers, also contributes towards breeding places for mosquitos.

As part of the intervention measures, the Health Department is exploring a pesticide programme which could include fogging adult insects and spraying to eliminate the larvae. This will also include an environmental clean-up campaign.

The department envisages that the existing infestation will subside due to the winter period. Lower temperatures are not conducive to the survival of hibernating larvae. The Health Department is further engaging with various stakeholders such as the Environment and Agriculture Management Department, Gauteng Department of Health, adjoining municipalities and entomologists from the National Institute for Communicable Diseases to seek a longer-term solution.

The Health Department also encourages natural mosquito repellents such as citronella, lavender, lemongrass, eucalyptus and tea tree oil. Wear clothes that cover the ankles and arms. Refrain from illegally dumping waste. Eliminate all possible containers around the house where water can accommodate mosquito breeding. Parents and caregivers are also encouraged to monitor the safety of children by ensuring that they do not play in swampy wetland spaces.