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...

Germination, floristic composition and phytosociology in the soil weed seed bank are important to know the weed flora and to predict weed infestations. The objective of this research was to assess and to compare germination, the weed flora and phytosociology of the soil weed seed bank in rice...

Rice ecosystem often involves a complex interaction of various pest species with rice. An example of such interaction is that between the invasive Pomacea spp. and Limnocharis flava. Both invasive pests have caused heavy loss to rice in Southeast Asia including Malaysia. However, information on the ...

Prosopis juliflora is an invasive and allelopathic plant widespread in most parts of the world. P. juliflora is known to influence the growth of plants growing in its vicinity by the release of the allelochemicals during the decomposition of its litter. The negative effect is manifested by...

Bidens pilosa L. var. radiata Sch.Biq. is an invasive weed generally distributed in Thailand. This study was carried out to investigate the phytotoxic effects of B. pilosa and its utilization on controlling paddy weeds, along with reports on allelopathic activities for the use of a weed control...

Objective: The present study was conducted to analyze the adaptability in China and invasive risk of Lissorhoptrus oryzophilus Kuschel in Guangxi rice producing areas in order to provide references for its control. Method: The distributing adaptability in China and risk analysis in Guangxi of L....

Weedy rice are complex of Oryza morphotypes widely distributed in the commercial rice fields in more than 50 countries of Asia, Africa and Latin America, especially in areas where farmers have switched to direct seeding due to labour shortage and high cost. Wild and weedy forms of different species ...

Weedy rice (Oryza sativa f. spontanea) has posed a novel threat to the sustainability of rice cultivation in Sri Lanka and thus it is apparent to control weedy rice (WR) to enhance the quality and quantity of economical yield of rice. Present study focuses to determine the level of phenotypic and...