| primary diagnosis and surveillance of white spot syndrome virus in wild and farmed crawfish (procambarus clarkii, p. zonangulus) in louisiana, usa. | this is the first report of natural white spot syndrome virus (wssv) infection in wild and large-scale farmed crawfish. in the spring of 2007, 3 crawfish farms experienced heavy mortality in ponds populated by procambarus clarkii and p. zonangulus. histological examination revealed findings consistent with severe viral infection characterized by numerous intranuclear inclusions in ectodermal and mesodermal tissues. samples tested by in situ hybridization, injection bioassay in litopenaeus vannam ... | 2009 | 19593929 |
| predation of aquatic stages of anopheles gambiae by the louisiana red swamp crawfish (procambarus clarkii). | laboratory experiments lasting 1-3 days were conducted in 10-liter glass aquaria to evaluate the ability of the louisiana red swamp crawfish (procambarus clarkii [decapoda: cambaridae]) to consume the aquatic forms of mosquitoes. with anopheles gambiae as the target species, significantly fewer mosquito larvae or pupae survived in the presence of either juvenile or adult crawfish, relative to conditions without crawfish, regardless of whether crawfish had alternative food or not. when alternativ ... | 1999 | 10342272 |
| a pilot study testing a natural and a synthetic molluscicide for controlling invasive apple snails (pomacea maculata). | pomacea maculata (formerly p. insularum), an apple snail native to south america, was discovered in louisiana in 2008. these snails strip vegetation, reproduce at tremendous rates, and have reduced rice production and caused ecosystem changes in asia. in this pilot study snails were exposed to two molluscicides, a tea (camellia sinensis) seed derivative (tsd) or niclosamide monohydrate (pestanal(®), 2',5-dichloro-4'-nitrosalicylanilide, cas #73360-56-2). mortality was recorded after exposure to ... | 2016 | 26687501 |