The reproductive potential of Meloidogyne graminicola was compared with that of M. incognita on Trifolium species in greenhouse studies. Twenty-five Trifolium plant introductions, cultivars, or populations representing 23 species were evaluated for nematode reproduction and root galling 45 days after inoculation with 3,000 eggs of M. graminicola or M. incognita. Root galling and egg production ...

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

Abstract Background Nematodes ( Meloidogyne spp.) are a major reason behind the global crop yield reduction. The bacterial strain KMT-4 was isolated from nematode-affected tomato Solanum lycopersicum ) rhizosphere at research farms, Hisar, India, and screened for its biocontrol potential against root-knot nematode javanica as well checked effect on plant growth yield. Results bacterium identifi...

Hydrodistilled essential oil from Rhododendron anthopogonoides Maxim. (Ericaceae) aerial parts was analysed by gas chromatography-mass spectrometry (GC-MS). A total of 42 compounds, accounting for 95.48% of the total oil, were identified. The main constituents of the essential oil were benzyl acetone (34.41%), nerolidol (10.19%), 1,4-cineole (8.41%), beta-caryophyllene (5.63%), gamma-elemene (5...

A strain of the fungus Fusarium equiseti isolated from soybean cyst nematode secretes nematode-antagonistic compounds. Bioassay-guided fractionation of an extract of the culture broth was undertaken to identify the compounds. Fractions were assayed for activity against a root-knot nematode (Meloidogyne incognita), a plant pathogen that attacks the roots of numerous plant species. Two trichothec...

The southern root-knot nematode, Meloidogyne incognita, is the most damaging pathogen of cotton in the USA. Host-plant resistance to root-knot nematodes is an effective means of reducing crop losses and reducing nematode population levels in a field. Resistance to plantparasitic nematodes refers to the suppressive effect of the plant on the nematode’s ability to reproduce; tolerance describes t...

Cotton host plant resistance research was initiated with the establishment of Boll Weevil Research Laboratory in 1960. objectives were to conduct and develop technology that ultimately could be used eradicate boll weevil. Early concentrated on developing techniques screening germplasm for resistance. A full-scale weevil eradication trial began southern Virginia eastern North Carolina 1978 after...

A simple and applicable technique was developed for the detection of soil infestation with rice rootknot nematode, Meloidogyne graminicola by farmers themselves at their fields. The collected soil samples from root-knot nematode infested fields were diluted by adding sterilized sand in the ratio of 1: 1, 1: 3, 1: 7, 1: 15, 1: 31 and 1: 63 and sown with sprouted rice seeds (cv MUT 7029) for dete...

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...