Rotylenchus robustus (Thorne's lance nematode) is a plant pathogenic nematode infecting lettuce. The nematodes of lettuce infestations may be one or more of numerous varieties. There are nearly 50 species of nematodes that may feast on lettuce, depending on geographic location. The lettuce develops stunted growth if it's infested as a seedling. The nematodes mainly affect the roots, which develop swollen galls, says the University of California IPM Online. The nosode effect was cH-dependent since nematode reproduction was favored by treatment with 42cH. The nosode also affected (p <0.05) lettuce roots, which presented higher or lower... The disease appears to be associated with the presence of nematodes belonging to the genus Xiphinema . Seed transmission not studied. LettuceNematode Control. Nematodes can be difficult to control or eradicate, but a combination of cultural, biological and chemical management can have a great impact. While lettuce wilts most often because of lack of water, it can also wilt due to excessive moisture, heat, or any disease such as leaf drop, septoria leaf spot, root nematodes, lettuce pests... Poscosecha, postcosecha, postharvest, asparagus, enfermedades, nematode, lettuce, nematodo In previous studies, we showed that the incorporation of the waste rootstocks obtained from... Agents of Disease – Nematodes. Field plot infested withnematodes. Lettuce damage by Root‐knot nematode. Root lesion nematode in roots. Full Length Research Paper. Effect of soil solarization using plastic mulch in controlling root-knot nematode (Meloidogyne spp.) infestation and yield of lettuce at Anse Boileau, Seychelles. Lettuce can be grown in wide variety of soils rich in organic matter and good moisture holding capacity. This is because it has a very shallow root system. The effect of bacteria on nematode infestation of lettuce was also studied. results showed that most of the tested strains and CFS reduced egg hatching and juvenile survival in vitro. These nematodes damage the root system and reduce the growth of the crop. Rotting of the oldest leaves, called “smet” in Dutch, is an important disease in Belgian lettuce. The inoculation of lettucewith rhizobacteria did not compensate for losses in aerial dry weight caused by nematode infestation (Table 3). A significant increase in root dry weight was produced...