This pest is is not known to be a vector and it is not vectored by any organism.
Method | Detail | NAPIS Survey Method |
---|---|---|
Soil Sample | Send sample to nematology diagnostic lab where nematodes will be extracted and identified. | 3012 - General Soil Sample |
Tissue Sample | Collect roots from symptomatic plants. | 3011 - General Tissue Sample |
No specific signs are present.
General decline, reduced growth, and dieback of coffee trees are seen. Splitting and cracking of the cortical root tissue, especially the taproot, is observed. Nematode feeding causes the tissues around the giant cells to die. Foliar chlorosis and leaf drop occur.
Meloidogyne incognita and M. konaensis.
Molecular: RAPD markers have been used to confirm species identification and for estimating the genetic difference among species and isolates (Carneiro et al., 2004). RAPD makers were identified and transformed into SCAR makers and allow the detection of M. exigua, M. incognita, and M. paranaensis in a multiplex PCR (Randig et al., 2002; Randig et al., 2004; Carneiro et al., 2005).
If you are unable to find a reference, contact STCAPS@usda.gov. See the CAPS Pest Datasheet for all references.