Mount St. Helens volcanic ash was incorporated into a loamy sand greenhouse soil mix to produce concentrations of 0, 0.5, 1.0, 2.0, 4.0, 8.0, 25, 50 and 100% ash. Chemical and physical properties of the various mixtures were determined. Three experiments were conducted in a greenhouse to determine if volcanic ash had any influence on root-knot nematode survival and infectivity. Tomato, Lycopers...

Florida leads the commercial production of caladiums, a popular ornamental. In Florida, root-knot, sting, and stubby root nematodes are found in caladium fields. Root-knot considered most important all pests caladiums that grown sand. This publication will help growers understand what plant-parasitic current nematode management strategies for industry.

When nematodes invade and subsequently migrate within plant roots, they generate cell wall fragments (in the form of oligogalacturonides; OGs) that can act as damage-associated molecular patterns and activate host defence responses. However, the molecular mechanisms mediating damage responses in plant-nematode interactions remain unexplored. Here, we characterized the role of a group of cell wa...

In healthy cotton, except for random occasional occurrence in cortical cells, terpenoid aldehydes (TA) are localized in the epidermis and, even there, are absent from the tip 2-4 cm of the root. Since constitutive TA do not occur in the endodermis and stele of the root, they cannot be effective agents against the development of the sedentary stage of the root-knot nematode, Meloidogyne incognit...

cluding California (Altman and Thomason, 1971; Whitney and Duffus, 1986; Duffus and Ruppel, 1993). Resistance to root-knot nematode (Meloidogyne spp.) previously Disease of sugar beet caused by root-knot nematode was introgressed into sugar beet (Beta vulgaris L.) from wild beet [B. vulgaris ssp. maritima (L.) Arcang] and was demonstrated to be is manifested by galls that form on lateral roots ...

sought for accelerating sugarbeet root-knot nematoderesistance breeding. An isozyme pattern of phosphogluRoot-knot nematode (Meloidogyne spp.) is a destructive pest of comutase (PGM) has been shown to be associated with sugarbeet (Beta vulgaris L.) that reduces production in infested areas root-knot nematode resistance found in the Mi-1 Beta and is difficult to manage. Identification of nematod...

status of the plant nematode community associated with growing trees in northwestern Egypt. About 1839 soil and root samples were collected, during period from 2021 to 2022 at entire costal districts besides Siwa district Marsa Matrouh governorate. Root- knot nematode, Meloidogyne spp < em>. was most abundant dominant genus all nine surveyed regions

in this research, bacillus strains efficiency were tested to control root knot nematode, meloidogyne javanica .one hundred and fifty strains were isolated from tomato rhizosphere. antagonistic activity of strains on m. javanica was checked in vitro assay. nematicidal ability of bacterial suspension of 1 × 108 cfu/ml was investigated on nematode egg and larvae with three replication using random...