A5055016749- Insect Pest Control Strategies
- Entomopathogenic Microorganisms in Pest Control
- Nematode management and characterization studies
- Insect Utilization and Effects
- Insect Resistance and Genetics
- Agricultural pest management studies
- Plant Growth Enhancement Techniques
- Agricultural Practices and Plant Genetics
- Insect-Plant Interactions and Control
- Insect and Arachnid Ecology and Behavior
Swansea University
2019-2022
General Commission for Scientific Agricultural Research
2008
Ain Shams University
2005
The entomopathogenic fungus (EPF) Metarhizium brunneum occupies the same ecological niche as nematodes (EPN), with both competing for insects a food source in rhizosphere. Interactions between these biocontrol agents can be antagonistic or synergistic. To better understand interactions, this study focussed on investigating effect of M. volatile organic compounds (VOCs), 1-octen-3-ol and 3-octanone, EPN survival behaviour. These VOCs proved to highly toxic infective juveniles (IJs)...
Root knot nematodes (RKNs) cause significant crop losses. Although RKNs and entomopathogenic fungi, such as Metarhizium brunneum, are associated with plant roots, very little is known about the interactions between these two organisms. This study showed that conidia VOCs of Me. brunneum influenced behaviour M. hapla. The response was dependent on fungal strain, VOC, concentration both VOC conidia, time. Tomatoes planted in soil treated highest doses usually had a higher number than untreated...
Slugs and snails constitute major crop pests. Withdrawal of metaldehyde has prompted a search for more environmentally friendly yet fast acting molluscicides. This study investigated the response representative molluscs to conidia volatile organic compounds (VOCs) insect pathogenic fungus Metarhizium brunneum Petch.Conidia M. had antifeedant/repellent properties with repellency being dependent upon fungal strain concentration. Three commonly produced VOCs, 1-octene, 3-octanone 1-octen-3-ol,...
New pest management solutions are needed to control soil invertebrates (insects, nematodes, mollusks) in order implement the goals of European Green Deal. Natural volatile organic compounds (VOCs) such as 1-octen-3-ol and 3-octanone, emitted by entomopathogenic fungus Metarhizium brunneum could be part solution. Three major crop pests, Agriotes lineatus (wireworm), Diabrotica virgifera (corn rootworm) Phyllopertha horticola (garden chafer), were susceptible fumigation with 3-octanone. The...
Metarhizium brunneum is a highly effective entomopathogenic fungus that also functions as plant biostimulant. It can act both an endophyte and rhizosphere colonizer; however, the mechanisms driving biostimulation are multifactorial. In this work, oilseed rape (Brassica napus) seeds were grown in composts treated with different concentrations of M. strains ARSEF 4556 or V275, brunneum-derived volatile organic compounds 1-octen-3-ol 3-octanone. Biostimulation efficacy was found to be strongly...
Laboratory experiments were carried out to determine the bioeffects of an isolate entomopthogenic fungi Beauveria bassiana (Bals.)and Biofly a commercial product B. bassiana, on 1 st instar larvae mushroom fly, Bradysia ocellaris (coms).The bioactivity was tested, using five concentrations some biological criteria by calculating LC50 values after three and seven days treatment.Results indicated that mortality rates percentage increased with increase used period treatment.The highest occurred...
Laboratory experiments were carried out to investigate the effect of two bacterial commercial products B. thuringiensis (Dipel 2x and Protecto) on eggs newly hatched larvae pink bollworm, P.gossypiella.Different concentrations both tested.The results showed that percentage larval mortality increased by increasing concentration period after treatment, calculated LC50s values 3-7 days treatment.Treatment did not affect, significantly, hatchability.While produced from treated was high according used.