Small brown planthopper - Laodelphax striatellus

EEffective: April 22, 2016 - December 31, 2018
Resources: Pest Tracker CAPS Pest Datasheet
Screening Aids:
Taxonomic Position: Hemiptera : Delphacidae
Pest Type: Insects
Pest Code (NAPIS): IRAJASA
This pest is a member of the following lists:

Corn
Small Grains
These Approved Methods are appropriate for: 2018, 2017
Major Hosts identified in the Host Matrix:
Barley; Corn; Oat; Rice; Wheat

This list includes important economic or environmental hosts but does not represent all major hosts of the pest. Check CAPS pest datasheet for complete list of hosts.
Human and Animal Pathogens Transmitted:
Not known to transmit any human or animal pathogens.
Plant Pathogens and Organisms Vectored:
Not known to vector any pathogens or other associated organisms.
Pest is vectored by:
No known vector.
Survey
Approved Method(s):
Method Product Name / Instructions NAPIS Survey Method
Trap 43 - Sticky Card, Yellow
 3001 - General Trapping Procedure
Approved Lure(s):
NAPIS Code Product Name Dispenser Effectiveness Compound(s)
0 No Lure N/A undetermined
Signs:
No specific signs are present.
Identification


ID/Diagnostic: Morphological

Morphological. Laodelphax striatellus can be distinguished from other delphacids present in the United States using a combination of three key characters found on the adult male (Wilson and Claridge, 1991): • pterostigma on the forewing is present and distinct, • the mesonotum is black and shiny, and • the aedeagus and the parameres of the genitalia. Dissection of male genitalia is required for identification. Any suspect positive samples must be confirmed by a taxonomic expert for definitive identification. For additional guidance, see the keys and images in Wilson and Claridge (1991) and the images on the Laodelphax page on the Planthoppers of North America website (Bartlett, 2018). See CPHST Pest datasheet for references and website URL.
Mistaken Identities:
Other delphacids in the United States that infest rice include Tagosodes orizicolus and Metadelphax propinquus (Cherry et al., 1986). Tagosodes orizicolus also transmits Rice hoja blanca virus (Morales and Niessen, 1985). On corn, the planthopper Peregrinus maidis is found in the U.S. and transmits Maize mosaic virus (MMV) (Manandhar and Wright, 2016). Sogatella kolophon is also found on barley and corn (Wilson, 2005; Bartlett, 2018). Javesella pellucida, another delphacid that is present in the U.S., is found in wheat, barley, and corn (Bartlett, 2018). Javesella pellucida is also a vector of Oat sterile dwarf virus (OSDV), European wheat striate mosaic virus (EWSMV), and Maize rough dwarf virus (MRDV) (Bartlett, 2018). See CPHST Pest datasheet for references.