20210203-ARS-WR-0018

Microscopic view of Meloidogyne enterolobii, commonly known as the guava root-knot nematode at the U.S. Vegetable Laboratory in Charleston, South Carolina, on February 3, 2021.

 

This is Meloidogyne enterolobii during their infective juvenile life stage (a.k.a. 'J2'). The J2s of this species range in length between 380 to 473 microns and max out at 11-18 microns wide. In comparison, a human hair is approximately 70 microns wide. The ovals around the juveniles are unhatched eggs in various stages of development. The jagged amorphous pieces are plant debris. USDA Photo by William Rutter, Ph.D.

 

Related information includes:

 

Controlling Guava Root-Knot Nematode video

tellus.ars.usda.gov/stories/articles/controlling-guava-root-knot-nematode/

 

Meloidogyne enterolobii Found Infecting Root-Knot Nematode Resistant Sweetpotato in South Carolina, United States at apsjournals.apsnet.org/doi/10.1094/PDIS-08-18-1388-PDN

 

A Multi-state Effort to Contain and Manage the Invasive Guava Root Knot Nematode (GRKN) in Vegetable Crops.

 

ars.usda.gov/research/project/?accnNo=437518

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