Invasive weeds pose serious threat to aquatic ecosystems such as wet land paddy rice. An investigation was made to compare the allelopathic effects of aqueous extracts and residues of two invasive weeds viz., Alternanthera philoxeroides and A. sessilis with those of three native weeds viz., Conyza...

A survey on predominant weeds in nine districts of Purulia, Bankura, Birbhum, Burdwan, South Dinajpur, North Dinajpur, Cooch Behar, Jalpaiguri and Darjeeling in West Bengal, India revealed that Ludwigia parviflora (with a frequency of 42 to 83.85%), Marselia quardifolia (33.95 to 78.85%), Cynodon...

In tropical Sri Lanka, Water Hyacinth [Eichhornia crassipes (Mart.) Solms.] and Salvinia (Salvinia molesta D. S. Mitchell) continue to dominate eutrophic waterways in both rural and urban environments. In addition, several other highly invasive species have also recently become problems in...

Alligator Weed [Alternanthera philoxeroides (Mart.) Griesb] is acknowledged as the aquatic invader that poses the largest threat to Australian waterways and moist, terrestrial habitats. Despite control efforts over several decades, alligator weed is now widespread across NSW, and occurs as sporadic ...

Alligator Weed [Alternanthera philoxeroides (Mart.) Griesb] is acknowledged as the aquatic invader that poses the largest threat to Australian waterways and moist, terrestrial habitats. Despite control efforts over several decades, alligator weed is now widespread across NSW, and occurs as sporadic ...

Using all-digging method, biomass structure characteristics of the three Amaranthaceous invasinve plant populations were measured and compared in East Guangdong, such as Amaranthus viridis, Amaranthus spinosus and Alternanthera philoxeroides, taken the local plant Amaranthus caudatus as the control ...

Objective: The aim was to provide theoretical basis for the prevention and control of the invasion of Alternanthera philoxeroides (Mart.) Griseb. Method: Effects of fragmentation intensity of fresh roots and their burial depth on sprouting and early growth of A. philoxeroides were studied by ...

Invasive alien weeds are plants which threaten the ecosystem, habitats, species and human health. Invasive alien weeds harm not only biological diversity, but also the society, economy, culture and so on. Sichuan province (China) is one of the most serious districts influenced by invasive alien...

Alligator weed was discovered in Victoria in 1996 and a management program started in 1997. A large number of suburban backyards contained the weed at that time, as alligator weed was being grown by the Sri Lankan community due to confusion with a traditional vegetable. The project to date has...

Weed invasion can lead to changes in leaf litter decomposition rates, thereby altering nutrient cycling at invaded sites. Decomposition of alligator weed (Alternanthera philoxeroides (Mart.) Griseb.) litter was compared to decomposition of litter from two native sedge species (Schoenoplectus...