Tavga Sulaiman Rashid

• PhD.
• Asist Prof at Salahaddin University-Erbil

Botrytis cinerea is the causal agent of grey mold disease in many plant species and presents serious losses cost problems globally; hence, it has to be controlled. This research work was aimed at ascertaining how aqueous extracts of selected medicinal plants work against B. cinerea and extend the shelf life of strawberry fruits. For this study, the...

The antibacterial activity of the acetone (70%) extract from Rhus coriaria was studied using a disk diffusion assay, and minimum bactericidal concentrations (MBC) and minimum inhibitory concentrations (MIC) were studied. Additionally, Gas Chromatography–Mass Spectrometry (GC–MS) was used for the detection of components, and selected compounds were...

The study investigated the effects of five plant extracts on tomato seed germination, with a focus on their ability to neutralize bacterial and fungal seedborne pathogens. Pathogenic and non-pathogenic microorganisms were isolated and identified from the tomato seeds. To assess the effect of the plant extracts on the health of the seedlings and the...

A reconnaissance soil survey of approximately 14,872 km² in ‎the Erbil governorate is carried out by ‎the ‎‎EPU agricultural ‎research team during the spring of 2022. The objective of ‎this survey is to provide data ‎on the soils ‎of ‎the Erbil ‎governorate and provide a soil bank of information for the ‎physical,‎‏ ‏chemical and ‎biological ‎‎char...

This study was carried out in 6 different locations in the Anbar Province, between January and February 2021. The locations with higher pistachio cultivation, such as Kabisa, Al-Haditha, Al-Baghdadi, Anah, Al-Qaim, and Rawa were selected to study the prevalence of fungal diseases affecting pistachio crops. Twenty-six distinct fungal isolates were i...

The formulation from R. coriaria aqueous crude 35% concentrate, Emereen 1820 (5%) and water (60%) was prepared. An in vitro analysis was conducted, to determine the effectiveness of the strategy, for managing Fusarium oxysporum (Acc. Number KM039054) and Colletotrichum boninense (Acc. Number KM039057), two of the most harmful bacteria, as well as X...

Background and objectives: The environment and human health have fared badly from the use of ‎synthetic pesticides as a form of pest control. Plants are considered as an alternate pesticide for pest control ‎without sacrificing the environment and their potency on pests.‎ Methods: Aqueous extracts of (Lavender flower, olive leaves, thuja leaves and...

Background and objectives: Olive knot disease caused by the phytopathogenic bacterium Pseudomonas savastanoi affects olive cultivation in both quality and quantity. Endophytic bacteria are candidates for biocontrol agents according to previous research. Methods: In this study we collected samples (leaves and galls) randomly for pathogen and endophy...

Currently used copper-based pesticides and fungicides caused bacteria and fungi to develop resistance. Therefore, other environmentally friendly methods are being encouraged. Successful biopesticide usage is greatly reliant on suitable development of formulation. Four different surfactants (Emereen 1810, Emereen 1604, Emereen 1820 and Tween 20) wer...

Root diseases are one of the main forest nursery problems that have a significant impact on forest production which are caused by Fusarium solani. Rhizobacteria from healthy forest soils were isolated and screened in streak method to select antagonistic strains against F. solani. Two isolates showed high antagonistic activity and molecularly identi...

p>Fusarium wilt of tomato plants caused by Fusarium oxysporum Schlecht. emend. Snyder & Hansen and Fusarium solani (Mart.) Sacc. are serious problem limiting tomato production worldwide. Biological control has emerged as one of the most promising alternatives to chemical fungicides. The biological control capability of a T. harzianum isolate agains...

Endophytic fungi are potential antimicrobial agents that play an important role in improving plant growth. Endophytic fungi from healthy tomato plants have been evaluated for their potential antibacterial activity against Xanthomonas vesicatoria causing bacteria spot disease of tomato Thirty-eight different endophytic fungal isolates were isolated,...

Rhizosphere microorganisms play an important role in the soil ecosystem. Thirty three different isolates of Streptomyces isolated from healthy tomato rhizosphere soil. Antifungal activities against Colletotrichum acutatum)Accession no. KT215296) were checked by streak method. Isolate TS9 displayed better outcomes against C. acutatum as compared to...

Black bean aphid (Aphis fabae scop.), belongs to order Hemiptera and family Aphididae, is one of the important pests of the Fabaceae family. Beauveria bassiana is an important biocontrol agent to replace chemical insecticides. Therefore, in this research, two different varieties of broad bean with three different concentrations of B. bassiana we...

The aim of this study is designed to determine how tolerant wheat genotypes to drought stress. Three drought tolerant Triticum aestivum L. genotypes; Rizgary, Sham-6 and Abu-Ghraib compared with three drought-susceptible; IPA95, Tammuz-2 and IPA99 under water deficit 20% WHC (Water Holding Capacity). ABA level, drought related parameters; shoot and...

Pomegranate has been known for its antimicrobial activity against the various plant and human pathogenic microorganisms. The chemical composition of the pomegranate ethyl acetate crude extract was analyzed by thin-layer chromatography and gas chromatography-mass spectrometer. The antibacterial effect was studied employing the TLC-bioautographic met...

Pomegranate has been known for its antimicrobial activity against the various plant and human pathogenic microorganisms. The chemical composition of the pomegranate ethyl acetate crude extractwas analyzedbythin-layer chromatography and gas chromatography-massspectrometer. The antibacterial effect was studied employing the TLC-bioautographic method....

The prevalence of Anthracnose disease, which is caused by a number of Colletotrichum spp., takes its toll on the tomato (Lycopersicon esculentum Mill.) and poses a significant economic constraint on its production. Successful efforts towards controlling this organism remain a deficient task. Rhus coriaria fruit extracts were subjected to screening,...

The aim of this work to identify chemical components of Garcinia mangostana leaves and test the antibacterial effect on Pseudomonas syringe pv. tomato and Xanthomonas oryzae pv. oryzae using bioautographic procedure. Phytochemical screening of methanolic extract showed that the leaf extract of G. mangostana rich in alkaloids, Flavonoids, Saponins,...

The aim of this work to identify chemical components of Garcinia mangostana leaves and test the antibacterial effect on Pseudomonas syringe pv. tomato and Xanthomonas oryzae pv. oryzae using bioautographic procedure. Phytochemical screening of methanolic extract showed that the leaf extract of G. mangostana rich in alkaloids, Flavonoids, Saponins,...

Anthracnose fruit rot has emerged as a significant threat to pepper (Capsicum annuum) production in the Cameron Highlands, Pahang State, Malaysia. In May 2013, dry, round, sunken zones (10 to 20 mm) were observed on pepper fruits. Eventually, the lesions turned brown, coalesced, and the fruits mummified on the plants. Disease incidence was up to 60...

An experiment was performed to study the antibacterial activity of methanol, acetone, alcohol and aqueous extracts from the fruit of R. coriaria by disk diffusion assay in terms of minimum inhibitory concentrations (MIC), minimum bactericidal concentrations (MBC) and killing-time curve. The detection of the components was also fulfilled using Gas C...

Plant pathogenic bacteria are recognized to be harmful microbes able to decrease the quantity and quality of crop production in the world. Punica granatum peel was screened for its potential use as biological control agent for plant pathogenic bacteria. P. granatum peel was successfully extract using n-hexane, methanol and ethyl acetate by macerati...

In May 2013, tomato (Solanum lycopersicum) plants cultivated in the Cameron Highlands, Pahang state, Malaysia, had extensive fruit, stem and leaf spots. In severe cases, disease incidence was up to 70% in glasshouses. Leaf lesions were initially small (1-2 mm) black on either surface enlarging to 1-2 cm in diameter and irregular to round in shape,...

Plant pathogenic bacteria are recognized to be harmful microbes able to decrease the quantity and quality of crop production in the world. Punica granatum peel was screened for its potential use as biological control agent for plant pathogenic bacteria. P. granatum peel was successfully extracted using n-hexane, methanol and ethyl acetate by macera...

This study was conducted in order to determine the fungi and bacteria associated with tomato plants at Cameron Highlands Malaysia. The fungi which have been isolated and detected from tomato plants were: Fusarium oxysporum, F. solani, F. acuminatum, Rhizoctonia solani, Colletotri-chum boninense, C. acutatum and Phoma destructiva. The bacteria which...

The potential of Garcinia mangostana as a biological control agent against plant pathogenic bacteria which decrease the quality and volume of crop production worldwide was assessed. Mangosteen leaves were extracted by maceration using chloroform, n-hexane, and methanol. For the in vitro antibacterial activity, two dissimilar species of plant pathog...

A Streptomyces isolate having antifungal activity against Pyricularia oryzae, the causal agent of rice blast disease, was isolated from soil collected in rice fields of Tanjung Karang Selangor, peninsula Malaysia.The aim of the study was to determine the antifungal activity of Streptomyces sp. isolate UPMRS4 extracts against P. oryzae and to identi...

The prevalence of Anthracnose disease, which is caused by a number of Colletotrichum spp., takes its toll on the tomato (Lycopersicon esculentum Mill.) and poses a significant economic constraint on its production. Successful efforts towards controlling this organism remain a deficient task. Rhus coriaria fruit extracts were subjected to screening,...

Fusarium wilt is one of the major plant diseases that affect tomato production. The antifungal activities of four solvents extracts from sumac (Rhus cariaria) were investigated for their effects on the initial growth of mycelia of Fusarium oxysporum. The sumac extract was prepared by methanol, acetone, ethanol and aqueous extraction of the fruits a...

In May 2013, typical symptoms of bacterial spot disease were observed. Symptoms were characterized by dark, circular to irregular spots on leaves, and water soaked spots surrounded by chlorotic halos on fruits. The disease incidence on tomato (Solanum lycopersicum) varied from 48 to 60% in different commercial fields (Thanassoulopoulos & Manos, 199...

In May, 2013, severe anthracnose symptoms were observed on the leaves of tomato plants grown in the Cameron Highlands (Pahang, Malaysia). The disease incidence reached 40% on mature leaves. Typical symptoms included circular, immersed lesions with orange spore masses in a dark centre. When grown on potato dextrose agar at 25°C with a 12 h photoperi...

In May, 2013, severe anthracnose symptoms were observed on the leaves of tomato plants grown in the Cameron Highlands (Pahang, Malaysia). The disease incidence reached 40% on mature leaves. Typical symptoms included circular, immersed lesions with orange spore masses in a dark centre. When grown on potato dextrose agar at 25°C with a 12 h photoperi...

During June 2011 to March 2012, Moko disease symptoms were observed in banana cv. Nipah in two Malaysian states. The primer pairs ISRso19F/ISRso19R were used for defined identification of Ralstonia solanacearum race 2 strain. PCR amplification of all isolates produced a 1900 amplicon and exhibited 93% phylogenetic similarity with reference strain (...