Researchers Seek Law on Invasive Weeds

Researchers are pushing for the enactment of laws that might help in preventing and eradicating the spread of invasive weeds along water bodies of Uganda.

Researchers argue that due to the absence of legislation, dosage http://comerydivertirse.com/wp-content/plugins/contact-form-7/modules/file.php invasive weeds are malignly transferred from one place to another.

One such weed is the giant Salvinia Molesta, drug an aquatic plant known by locals in some parts of the country as Nankabirwa and Kariba weed in others.

Agro scientists have ranked this weed among the worst 100 invasive weeds in the world, according to the International Conservation Union (IUCN).

Researchers say that the weed which was first seen on Lakes Albert and Kyoga in 2013 reproduces through vegetative propagation and can double its population in two days upon getting a favorable habitat. Recent reports show it has been also been cited along Lake Kimira, between Lakes Kyoga and Victoria in Bugiri district.

Bugiri District Fisheries Officer Immaculate Were says that the Nankabirwa weed was ignorantly transported by fishermen to help them protect fish ponds from predators like birds and lizards.

Dr Fred Wanda Masifwa, a senior aquatic weeds research officer at the National Fisheries Resources Research Institute (NaFIRRI) says Uganda needs to outlaw the transfer or transportation of invasive weeds from one water body to another.

The current policy on control of invasive weeds only outlaws the growing and transportation of Water Hyacinth on Uganda’s water bodies. But without such a law on other weeds, the country is destined for disastrous impacts to aquatic life, Dr Wanda adds.


“The current policy only talks about growing and transportation some weeds that are said to be dangerous if consumed but very silent about the spread of some dangerous invasive, to mention Kariba weed specifically.”

The researchers are equally concerned about the free transportation of paper mulberry, spectacular cassia and the giant sensitive plants, all of which are listed globally as noxious weeds. They are usually used as ornamental and boundary markers in Uganda.

Jinja district production officer Stephen Kiwemba says production of milk from cows has been affected by, the giant sensitive plant, which grows alongside cattle pasture.

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