Previous reports of crop losses to plant-parasitic nematodes have relied on published results of survey data based on certain commodities, including tobacco, peanuts, cotton, and soybean. Reports on crop-loss assessment by land-grant universities and many commodity groups generally are no longer available, with the exception of the University of Georgia, the Beltwide Cotton Conference, and selected groups concerned with soybean. The Society of Nematologists Extension Committee contacted extension personnel in 49 U.S. states for information on estimated crop losses caused by plant-parasitic nematodes in major crops for the year 1994. Included in this paper are survey results from 35 states on various crops including corn, cotton, soybean, peanut, wheat, rice, sugarcane, sorghum, tobacco, numerous vegetable crops, fruit and nut crops, and golf greens. The data are reported systematically by state and include the estimated loss, hectarage of production, source of information, nematode species or taxon when available, and crop value. The major genera of phytoparasitic nematodes reported to cause crop losses were Heterodera, Hoplolaimus, Meloidogyne, Pratylenchus, Rotylenchulus, and Xiphinema.
Keywords: Alfalfa; Allium cepa; Aphelenchoides besseyi; Apium graveolens; Arachis hypogaea; Belonolaimus longicaudatus; Brassica oleracea; Brassicaceae; Capsicum frutescens; Carica papaya; Carya illinoensis; Citrus spp.; Coffea arabica; Colocasia esculenta; Columbia lance nematode; Daucus carota; Ficus carica; Fragaria × ananassa; Globodera tabacum; Glycine max; Gossypium hirsutum; Helicotylenchus; Heterodera carotae; Heterodera glycines; Heterodera goettingiana; Heterodera schachtii; Heterodera zeae; Hoplolaimus columbus; Hoplolaimus galeatus; Ipomea batatas; Irish potato; Javanese root-knot nematode; Juglans sp.; Lactuca sativa; Longidorus africanus; Longidorus breviannulatus; Lycopersicon esculentum; Macadamia integrifolia; Malus sylvestris; Medicago sativa; Meloidogyne arenaria; Meloidogyne chitwoodi; Meloidogyne hapla; Meloidogyne incognita; Meloidogyne javanica; Meloidogyne nataliei; Mesocriconema ornata; Mesocriconema xenoplax; Musa paradisiaca; Nicotiana tabacum; Olea europa; Paratrichodorus allius; Paratrichodorus minor; Persea americana; Persea gramtissima; Pistachia vera; Pratylenchus brachyurus; Pratylenchus coffeae; Pratylenchus neglectus; Pratylenchus penetrans; Pratylenchus thornei; Pratylenchus vulnus; Prunus amygdalus; Prunus avium; Prunus persica; Psidium guajava; Quinisulcius acutus; Rotylenchulus reniformis; Rubus spp.; Saccarhum officinarum; Solanaceae; Solanum tuberosum; Sorghum vulgare; Trichodorus allius; Triticum aestivum; Tylenchorhynchus; Tylenchulus semipenetrans; Vaccinium; Xiphinema americanum; Xiphinema index; Xiphinema pachtaicum; Zea mays; almond; apple; avocado; banana; blueberry; carrot; carrot cyst nematode; cauliflower; celery; cherry; citrus; citrus nematode; coffee; corn; corn cyst nematode; crop loss; dagger nematode; distribution; fig; guava; lance nematode; lettuce; macadamia nut; nectarine; needle nematode; nematode; northern root-knot nematode; olive; papaya; peach; peanut root-knot nematode; pear; pecan; pistachio; plant disease loss; prune; raspberry; reniform nematode; resistance; rice; root-knot nematode; sorghum; southern root-knot nematode; soybean cyst nematode; spiral nematode; sting nematode; strawberry; stubby root nematode; stunt nematode; sugar beet cyst nematode; sugar cane; sweetpotato; taro; tobacco cyst nematode; walnut; wheat; white-tip nematode.