Malarial mosquitoes require two bites to transmit the disease, the first on a
diseased individual and the second on an uninfected individual. After the first
feeding the mosquito must rest while it is consuming the blood. In homes the
mosquitoes (at least those in Central America) generally rest on the upper part
of the walls, just below the ceiling.
Concentrating the pesticide there will maximize control of the disease,
minimize dangers to non-target organisms, and reduce the probability of the
mosquito developing resistance.
Eric G. Hurley
At 09:05 AM 2/16/99 +0100, you wrote:
>> I was wondering, further if there are any sustainable, organic, and/or
>> biodynamic treatments that anyone on the list is aware of that could be of
>> some help, not just to treat the mosquito nets, but the people and area in
>The solution to malaria is not to try and kill all the vector mosquitoes.
>Most countries have Anopheles mosquito vectors (e.g. US, Europe), but do not
>have malaria - even though the causal organism is in the population,
>primarily from recent immigrants. Several points are important;
>1. Malaria is transmitted primarily by bites at night and early morning when
>the vector is active. Protecting oneself (e.g. netting, repellent, etc.) is
>very important. Most homes are usually not protected with screens or nets,
>but could be if given economic priority in the home budget - even very
>limited budgets common in Tibet and other poorer countries (actually
>2. Malaria is a community and social problem. The mosquito has to be
>controlled by reducing standing water - habitat modification. There are
>activities such as forming community action groups, "mosquito control
>districts", and neighbourhood organisations that can help to monitor, and
>change. Community mapping of problem sites, community education on mosquito
>habitat, vector - disease interaction education, etc. are all important -
>but need leadership. Major changes may be necessary such as drainage
>ditches, etc. where mosquito populations thrive.
>3. Neem, and other pesticides may have a role but cannot be seen as a
>long-term common sense solution.
>Global IPM Facility
>FAO Rome Italy
Eric G. Hurley
829 Douglas Ave #3
Ames IA 50010-6221
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