Invasive Species Compendium

Detailed coverage of invasive species threatening livelihoods and the environment worldwide

Abstract

Paralongidorus australis, a needle nematode that may cause severe damage to rice.

Abstract

P. australis is restricted to northeastern Australia and the purpose of this circular is to alert rice growers to the symptoms and potential damage that this nematode may cause if it becomes established in rice fields in Florida, USA, or other regions. Diseased plants tend to occur in patches, giving the crop an uneven appearance. Weeds become dominant in these patches and contribute to further crop loss. Notes on the biology and control of the nematode are given. P. australis is unique in being more active in flooded soil than in moist soil. There is no satisfactory control method at present.