Macrophomina phaseolina has a wide host range and is responsible for causing losses on m cultivated and wild plant species. So far in Pakistan it has been reported to cause disease on hosts including field crops, pulses, flowers and vegetable have been reported. Infection on s first reported from Sri Lanka in 1927 and in 1982 it was reported from sunflower field in fungus is reported to be soil...

Four experimental trials were carried out at Albenga (Northern Italy) to evaluate the e!ectiveness of reduced dosages of methyl bromide (MB) applied under gas-impermeable "lms in controlling soilborne pathogens of vegetable crops. Forty and thirty g/m2 of MB applied under di!erent types of gas-impermeable "lms controlled Rhizoctonia solani on bean, lettuce and basil, Fusarium oxysporum f. sp. b...

Oomycetes are eukaryotic microorganisms morphologically similar to but phylogenetically distant from true fungi. Most species in the genus Phytophthora of oomycetes are devastating plant pathogens, causing damages to both agricultural production and natural ecosystems. Tremendous progress has been achieved in recent years in diversity, evolution and lifestyles of oomycete plant pathogens, as we...

ABSTRACT Relatively little is known about the population biology of the legume pathogen Aphanomyces euteiches. A. euteiches is a soilborne pathogen causing Aphanomyces root rot of several legumes, including alfalfa, bean, lentil, and pea. Our objectives were to assess the degree of diversity, selfing, and population differentiation in A. euteiches. We contrasted populations within and among two...

The agents (pathogens) that cause soilborne diseases of peanut are various fungi and nematodes that survive in the soil and infect one or more parts of the plant at or below the soil surface. Soilborne diseases can severely limit peanut yields in Oklahoma, particularly in fields where long rotations with nonhost crops are not practiced. Southern blight and Sclerotinia blight are probably the mo...

Leafy spurge (Euphorbia esula-virgata), a native of Eurasia, is a serious invasive weed of grasslands of the northern Great Plains of the U.S. and prairie provinces of Canada. Leafy spurge is very difficult to control with herbicides, insect biological control agents, and other cultural practices. Previous field investigations revealed pathogen–insect interactions on the roots of leafy spurge l...

Genetic resistance in plants to root diseases is rare, and agriculture depends instead on practices such as crop rotation and soil fumigation to control these diseases. "Induced suppression" is a natural phenomenon whereby a soil due to microbiological changes converts from conducive to suppressive to a soilborne pathogen during prolonged monoculture of the susceptible host. Our studies have fo...

Plant growth and nutrition are adversely affected by various factors such as water stress, high temperature, plant pathogens. Plant-associated microbes play a vital role in the development of their hosts under biotic abiotic stresses. The use rhizosphere microbiome for stimulation biological control fungal disease can lead to improved crop productivity. Mechanisms used plant-growth-promoting rh...

Peat is the most common organic material used for the preparation of potting mix because of its homogeneous and favorable agronomic characteristics. However, this organic material is poorly suppressive against soilborne pathogens and fungicides are routinely used to manage damping-off diseases. In the present study,we investigated the suppressive capability of five compost – peatmixtures toward...