Host Suitability of Lettuce and Bean Germplasm for and Isolates from Spain.

spp. are an important threat to horticulture and cause substantial yield losses. Plant resistance is an alternative control method for chemical nematicides.

Crop rotation with -resistant germplasm is useful to manage and revert the (a)virulent populations of gene and reduce yield losses.

A rotation sequence of ungrafted and grafted tomato-melon-pepper-watermelon on resistant rootstocks 'Brigeor', , 'Oscos' and , respectively, was carried out in a plastic greenhouse, ending with a susceptible or resistant tomato crop. The rotation was conducted in plots infested by an avirulent (Avi) or a partially virulent (Vi) population to the gene. At the beginning of the study, the reproduction index (RI, relative reproduction in the resistant respect susceptible tomato) of Avi and Vi populations was 1.

Tomato and Melon Resistant Rootstocks Improve Crop Yield but Melon Fruit Quality Is Influenced by the Cropping Season.

Four rotation sequences consisting of ungrafted tomato cv. Durinta - melon cv. Paloma or tomato grafted onto the resistant rootstock 'Aligator' - melon grafted onto the resistant accession BGV11135, and in reverse order, were conducted from 2015 to 2017 in a plastic greenhouse infested or not with to determine the plant tolerance (), the minimum relative crop yield () and fruit quality.

Cucumis metuliferus reduces Meloidogyne incognita virulence against the Mi1.2 resistance gene in a tomato-melon rotation sequence.

Background: Susceptible tomato cv. Durinta, ungrafted or grafted onto cv. Aligator resistant rootstock, both followed by the susceptible melon cv.

Microbiomes associated with infective stages of root-knot and lesion nematodes in soil.

Endoparasitic root-knot (Meloidogyne spp.) and lesion (Pratylenchus spp.) nematodes cause considerable damage in agriculture.

Effect of plant resistance and BioAct WG (Purpureocillium lilacinum strain 251) on Meloidogyne incognita in a tomato-cucumber rotation in a greenhouse.

Background: The effectiveness of combining resistant tomato with BioAct WG (Purpureocillium lilacinum strain 251, Pl251) against Meloidogyne incognita was assessed in a tomato-cucumber rotation in a greenhouse over 2 years. Additionally, the enzymatic activity of the fungus, the percentage of fungal egg and juvenile parasitism, cardinal temperatures and the effect of water potential on mycelial growth and the soil receptivity to Pl251 were determined in vitro.

Results: Plant resistance was the only factor that suppressed nematode and crop yield losses.

Characterization of Soil Suppressiveness to Root-Knot Nematodes in Organic Horticulture in Plastic Greenhouse.

The fluctuation of Meloidogyne population density and the percentage of fungal egg parasitism were determined from July 2011 to July 2013 in two commercial organic vegetable production sites (M10.23 and M10.55) in plastic greenhouses, located in northeastern Spain, in order to know the level of soil suppressiveness.