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Provincial Secretariat for Urban Planning, Construction and Environmental Protection
Provincial Secretariat for Urban Planning, Construction and Environmental Protection
European Affairs Fund of Autonomous Province of Vojvodina
European Affairs Fund of Autonomous Province of Vojvodina
City of Sombor
City of Sombor
Local Government of Baja
Local Government of Baja
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Ambrosia suppression

  • Measures against ambrosia can be administrative, mechanical and chemical.

    The most efficient way of ambrosia suppression is to directly pull it out of the ground with the root on surfaces where only individual plants appear. In countries struggling with the problem of expansive ambrosia spreading, the primary choice is the physical method of suppression, i.e. mowing.

    Mechanical treatment is especially significant in urban areas, then in the areas around residential buildings and office buildings, maternity hospitals, schools, daycares. The plant is mowed before the flourishing to at least 5 cm above the ground. If it is not mowed really short, ambrosia grows back up in 20 days. It reappears as new generation which is common after mowing. During the vegetation period ambrosia should be suppressed by mowing it several times.

    The use of chemical substances for ambrosia suppression in populated areas should be reduced to a minimum. Only the smaller surfaces which are impossible to mow are treated with ecologically safe substances with constant monitoring of the changes to the environment.

    As we previously said, ambrosia can be suppressed in a few ways, but first and foremost by making the decision to suppress it and conduct it either mechanically or chemically.

    Herbicides are used for chemical suppression. It is often hard to conduct it on fields of crops, so selective herbicides need to be used. Suppression is much easier on neglected surfaces because of the easier application of herbicides, but we also need to pay attention in these situations that cattle does not approach the land after it has been treated with herbicides because of the risk of poisoning.

    The mechanical way of suppression is the most difficult one but apparently the most efficient. In this case ragweed is being pulled from the root while it is still young, in order for it to be easier it is usually done after rain, taking care that the treated surface is not stepped on too much. It is possible to suppress it by mowing, in place where it is possible to do it. Ambrosia has to be mowed before flourishing to not more than 5 cm above the ground. If you happen to come across flourishing ambrosia, it is best to cut it and burn it, so that the potentially mature seeds would not spread and transfer ambrosia to new areas. Mowing (once or twice a year) gives good results because it drastically reduces the number of male flowers (and also pollen). Different legal actions should regulate ambrosia suppression for the whole country, similar to the regulations of our neighbours, and to therefore force everyone to clean their own land covered in ragweed using harsh penalties or the competent services will do it for them at the owner's expense.

    Ambrosia suppression should begin every year at the end of May or beginning of June when the plants are about 20 cm high and the easiest to pull out. Later during the vegetation and just before the opening of the flowers until the middle or the end of July, the plants can be mowed. The most important thing is for it to be done before the ripening of the flowers, that is before the release of pollen.

     

 
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