Reda R. H. Abdullah

• Doctor of Philosophy
• Senior researcher at Plant Protection Research Institute (PPRI)

In 2019, researchers first discovered the highly invasive nocturnal pest Spodoptera frugiperda in Upper Egypt. This work investigated the sensitivity of S. frugiperda to six commercial pesticides in Egypt compared to Spodoptera littoralis and detected some biochemical changes (Detoxifying enzyme activities and protein patterns) in treated larvae of...

This study highlights the possibility of botanical insecticides, especially the essential oils like garlic and ginger, as sustainable substitutes for synthetic chemicals to enhance the value of combining efficacy with ecological and environmental concerns in pest management programs. In this work, the efficacy of essential oils, garlic (Allium sati...

Aphis gossypii (Glover) (Hemiptera: Aphididae) and Gynaikothrips ficorum Marchal (Thysanoptera: Phlaeothripidae) are important economic insect pests in Egypt. They cause economic losses to many crops. Plant essential oils are less harmful to the environment, hypotoxic to mammals, and lower in cost in comparison with synthetic insecticides, and they...

Background The fall armyworm (FAW), Spodoptera frugiperda , is an invasive and destructive pest to certain strategic crops, especially maize in Egypt. This research was conducted mainly to obtain secondary metabolites from some wild plants and fungal strains, use them in controlling FAW, and investigate their mode of action. Results The ethyl acet...

Abstract Spodoptera littoralis is the most destructive insect in Egypt and many other countries, where it attacks several economic crops, such as cotton and vegetables. Entomopathogenic fungi are widely used in controlling many pests. Usually, spores of them were used in the controlling process. In this study, intracellular and extracellular metabo...

As alternatives to chemical insecticides, entomopathogenic fungi or wild plants and their secondary metabolites are being used. These biocontrol agents are significant because of their biodegradability, specificity, eco-friendliness, and utility as agents to reduce insecticide resistance. In this study five ethyl acetate extracts of locally isolate...

A novel series of anticipated insecticidal activity 2-pyridone derivatives incorporating a 3,4-(Methylenedioxy) aniline moiety were synthesized in a good yield through interaction of the readily available cyanoacetanilide, N-(benzo[d][1,3] dioxol-5-yl)-2-cyanoacetamide (1) with different arylidene ethyl cyanoacetate and arylidene malononitrile deri...

Abstract Background and objective: Plant growth-promoting rhizobacteria (PGPR) are a group of bacteria that colonize plant roots and enhance the growth and productivity of plants. However, only those PGPR that are acclimatized to the local soil conditions perform well. The present study aims to pick up effective PGPR isolates from local soil and ut...

The aim of the present study is to improve the insecticidal activity of the entomopathogenic Beauveria bassiana by adding Chitosan to its secondary metabolites. The secondary metabolites were extracted from the broth culture of B. bassiana by ethyl acetate solvent. Chitosan was extracted from shrimp shells via three steps; demineralization; deprote...

The continuous searching for new compounds that more effective is very important in the pest control field. That is because of the resistance in many pests to several pesticides. In the search for new biologically active compounds, extensive research is based on the synthesis of heterocyclic molecules. In this work, three new cyanoacetamide derivat...

Biopesticides are considered the best alternative to chemical pesticides because they are highly effective, target-specific, and reduce environmental risks. The compatibility of biological and chemical pesticides is very important for effective pest management. The aim of this work is to study the side effects of pesticides on the viability of spor...

The primary objectives of formulation technology are to optimize the biological activity of the pesticide and to give a product that is safe for use. The present study aimed to determine the more formulation type which had more the effect on the efficiency of indoxacarb against cotton leafworm Spodoptera littoralis (Boisd.) (Lepidoptera: Noctuidae)...

Chitin is the main component of insect cuticle also, it presents in the gut membrane. Thus the use of chitinolytic bacteria or their metabolites to control insect pests is very interesting. In the present work, chitinolytic bacterial isolates were isolated and identified to use them as a bioinsecticide to control the tomato leaf miner insect Tuta a...

Microbial pest control is one of the best alternatives to chemical insecticides. Beauveria bassiana and Trichoderma harzianum are important entomopathogens of many insect pests. Cotton leafworm (Spodoptera littoralis) and aphids (Aphis gossypii) are the most destructive pests in crop production such as cotton, cabbage, tomato, potato, and lettuce....

An effective profenofos and λ-cyhalothrin degrading bacterium (strain DB17) was isolated from soil samples collected from Qassim region, Saudi Arabia. Based on the results of phylogenetic similarity of 16SrDNA gene sequences, strain DB17 was identified to be Pseudomonas putida. The isolate utilized profenofos and λ-cyhalothrin as the sole source of...

This study aimed to increase the efficacy of Bacillus thuringiensis (Bt) (most probably kurstaki) against insects of different feeding habits by chitinase gene transfer from chitinolytic bacteria to a Bt strain through conjugal transfer. Nineteen soil samples were collected from five locations in Qassim region, Saudi Arabia to isolate native strain...

Botrytis cinerea Pers, the gray mold fungus, is among the most dangerous plant pathogens that cause great losses in agricultural crops. The botryticidal activities of nanosized silver (nano Ag), fungal chitosan (CTS) irradiated fungal chitosan (IrCTS), and nano Ag-IrCTS composite were investigated. All of the examined materials exhibited powerful a...