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LDWF warning on the transport of Roseau cane, scale insect infes - KATC.com | Continuous News Coverage | Acadiana-Lafayette

LDWF warning on the transport of Roseau cane, scale insect infestation

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Roseau cane infested with scale insect / KATC Roseau cane infested with scale insect / KATC

The following is a press release from the Louisiana Department of Wildlife and Fisheries concerning the transportation of Roseau cane in the State of Louisiana. 

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Concern over a small insect, or scale, that has infected vast stands of Roseau cane in southern Plaquemines Parish has prompted a warning from the Louisiana Department of Wildlife and Fisheries (LDWF) and the LSU AgCenter not to transport or transplant Roseau cane into other parts of the state.
 
The scale, native from China or Japan, has been identified as Nipponaclerda biwakoensis, commonly referred to as Phragmites Scale or Roseau Cane Mealy Bug. It has had severe effects on the dominant vegetation of the Mississippi River Delta. The rate at which it seems to be expanding and the severity of its impacts is alarming, according to LDWF and LSU AgCenter biologists.
 
"Our message is very simple: Do not transport or transplant Roseau cane,'' said Dr. Rodrigo Diaz, Assistant Professor in LSU's Department of Entomology. "The scale that has invaded southern Plaquemines Parish could impact agriculture crops such as sugar cane and sorghum. It could have significant economic impacts to agriculture crops and native vegetation. So it is vital the cane not be moved.''
 
"Boaters in lower Plaquemines Parish should avoid contact with the cane and wash their boats after each trip so that they do not inadvertently transport the scale to other areas of the state.''
 
LDWF, Louisiana Department of Agriculture and Forestry and LSU AgCenter biologists are working to find a solution to the infestation, which has impacted thousands of acres of Roseau cane since being discovered. LDWF staff indicated there are likely infestations as far north as Hospital Bay on the west side of the Mississippi River and across from Fort Jackson on the east side.
 
Roseau cane is a wetland grass that helps protect Louisiana's bird foot delta. The severely impacted cane appears to be brown and mostly leafless, in contrast to the 10-foot tall robust leafy green cane normally seen this time of the year.
 
LDWF staff have found the scale on both stressed and apparently healthy cane. The public should not assume that just because the cane appears to be healthy that the scale is not present.
 
Biologists do not know much about the scale's life cycle here in Louisiana as this is a new insect to the United States. It is anticipated that the damage to the Roseau cane should be most obvious in the late summer.

The Louisiana Department of Wildlife and Fisheries is charged with managing and protecting Louisiana's abundant natural resources. For more information, visit us at www.wlf.la.gov. To receive recreational or commercial fishing email and text alerts, signup at http://www.wlf.la.gov/signup.

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