Nematodes montage

Nematodes

(Plant Parasitic Nematodes)

Nematodes (also called ‘roundworms’) are relatively small, multicellular, worm-like animals. They are found in almost every environmental niche imaginable, living free in soil, marine and freshwater habitats while feeding on bacteria, fungi, and nematodes, or as parasites of humans, insects, fish, larger animals and plants.

Plant parasitic nematodes are abundant in many soils and may be feed on roots and other below ground plant tissue as external feeders while living outside a plant or penetrate and enter plant tissue to live and feed internally causing damage to plants. While most species of plant parasitic nematodes feed on below ground plant tissue, a relatively fewer number may inhabit and feed on above ground tissue. Billions of dollars in losses to agricultural crops due to damages caused by plant parasitic nematodes occur worldwide every year. California’s agricultural industry could lose several hundred million dollars annually in crop losses if certain plant parasitic nematodes not known to occur or of limited occurrence in California would become widespread within the State.

PEST RATINGS:

NEMATODES:

Bursaphelenchus xylophilus (Steiner & Bruhrer, 1934) Nickle, 1970 Pine wilt disease
Current Pest Rating: C
Proposed Pest Rating: C
Comment Period: 09/03/2021 through 10/18/2021 

Dolichodorus heterocephalus Cobb, 1914 Cobb’s awl nematode
Current Pest Rating: none
Proposed Pest Rating: A
Comment Period: 08/10/2021 through 09/24/2021

Heterodera mani Mathews, 1971 Rye grass cyst nematode
Current Pest Rating: Q
Proposed Pest Rating: B
Comment Period: 09/24/2021 through 11/08/2021

Nematodes:

Anguina funesta
Pest Rating: A 

Anguina tritici | Wheat Seed gall nematode
Pest Rating: A 

Aphelenchoides besseyi Christie, 1942 (Allen, 1952) Strawberry summer dwarf nematode & Rice white tip nematode
Pest Rating: A

Aphelenchoides ritzemabosi (Schwartz, 1911) Steiner & Buhrer 1932
Pest Rating: C                                          

Asian Citrus Root-knot Nematodes
Pest Rating:  A

Belonolaimus longicaudatus Rau, 1958 Sting nematode
Pest Rating: A

Bursaphelenchus coccophilus
Pest Rating: A

Criconemoides (syn. Criconemella De Grisse and Loof 1965), Taylor 1936
Pest Rating: C

Ditylenchus destructor Thourne, 1945
Pest Rating: A

Ditylenchus dipsaci (Kühn, 1857) Filipjev, 1936
Pest Rating: C 

Globodera pallida (Stone 1973) Behrens Pale cyst nematode
Pest Rating: A

Globodera rostochiensis Wollenweber 1923 Golden nematode
Pest Rating: A 

Heterodera glycines Ichinohe, 1952 Soybean cyst nematode
Pest Rating: A

Helicotylenchus spp.
Pest Rating: C

Helicotylenchus multicinctus
Pest Rating:  B

Hemicycliophora arenaria
Pest Rating: B

Heterodera avenae Wollenweber, 1924 European cereal cyst nematode
Pest Rating: A

Heterodera australis Subbotin, Sturhan, Rumpenhorst & Moens, 2002 Australian cereal cyst nematode
Pest Rating: A  

Heterodera carotae Jones, 1950
Pest Rating: B 

Heterodera filipjevi (Madzhidov, 1981) Stelter, 1984 Filipjev’s cereal cyst nematode
Pest Rating: A  

 Heterodera sturhani Subbotin 2015 Sturhan cereal cyst nematode 
Pest Rating: A

Heterodera ustinovi Kirjanova, 1969 Ustinov’s grass cyst nematode
Pest Rating: A

Hirschmanniella belli Sher 1968
Pest Rating: C

Hirschmanniella diversa Sher 1968
Pest Rating: C 

Longidorus elongatus: Needle nematode
Pest Rating:  B

Meloidogyne chitwoodi Golden, O’Bannon, Santo & Finley, 1980 Columbia root-knot nematode
Pest Rating: B                                          

Meloidogyne enterolobii Yang and Eisenback, 1983.
Pest Rating: A

Meloidogyne floridensis Handoo et al., 2004
Pest Rating: A

Meloidogyne hapla Chitwood, 1949 Northern Root-Knot Nematode
Pest Rating: C 

Meloidogyne haplanaria Eisenback et al. 2003 Texas peanut root-knot nematode
Proposed Pest Rating: A

Meloidogyne incognita (Kofoid & White, 1919) Chitwood 1949 Southern root-knot nematode
Pest Rating: C

Meloidogyne marylandi Jepson and Golden, 1987
Pest Rating: C  

Merlinius spp. (Allen 1955) Siddiqi, 1970
Pest Rating: C 

Mesocriconema (Macroposthonia) xenoplax (Raski) Loof & de Grisse 1989 ring nematode
Pest Rating: C  

Paratrichodorus minor (Colbran, 1956) Siddiqi, 1974
Pest Rating: C  

Paratrichodorus porosus (Allen, 1957) Siddiqi, 1974
Pest Rating: C 

Paratrichodorus spp. (Siddiqi 1974) and Trichodorus spp. (Cobb 1913)
Pest Rating: C 

Paratylenchus spp. Micoletzky, 1922
Pest Rating: C

Pratylenchus alleni 
Pest Rating:  A

Pratylenchus coffeae 
Pest Rating: B

Pratylenchus hippeastri (Inserra et al., 2007) Amaryllis lesion nematode
Pest Rating: B

Pratylenchus neglectus
Pest Rating: C

Pratylenchus thornei
Pest Rating: C

Punctodera punctata (Thorne, 1928) Mulvey & Stone, 1976
Pest Rating: C  

Quinisulcius spp. Siddiqi 1971
Pest Rating: C                          

Radopholus similis (Cobb, 1893) Thorne, 1949
Pest Rating: A

Rotylenchulus reniformis
Pest Rating: A

Scutellonema spp. Cobb, 1913
Pest Rating: C

Tylenchorhynchus spp.
Pest Rating: C

Xiphinema diversicaudatum (Micoletzky, 1927), Thorne, 1939 European dagger nematode
Pest Rating: A

Xiphinema americanum Cobb, 1913 American dagger nematode
Pest Rating: C          

Xiphinema index
Pest Rating: B