Background The history of the world citrus industry is marked by a series of diseases caused by different etiologic agents. Several of them are characterized as biotrophic pathogens like Xanthomonas citri subsp. citri, three Candidatus Liberibacter spp and Citrus leprosis virus C (CiLV-C). In plant-pathogen interactions, the role of salicylic acid (SA) in activating defense related genes is wel...

Phytophthora diseases have become a major impediment in the citrus production in Thailand. In this study, an isolate of Phytophthora denominated as PHY02 was proven to be causal pathogen of root rot of Pomelo (Citrus maxima) in Thailand. The isolate PHY02 was morphologically characterized and identified as Phytophthora palmivora based on molecular analysis of an internal transcribed spacer rDNA...

Two systemic neonicotinoids, imidacloprid and thiamethoxam, are widely used for residual control of several insect pests in cotton (Gossypium spp.), vegetables, and citrus (Citrus spp.). We evaluated their impact on six species of beneficial arthropods, including four parasitoid species--Aphytis melinus Debach, Gonatocerus ashmeadi Girault, Eretmocerus eremicus Rose & Zolnerowich, and Encarsia ...

The purpose of this case study is to determine the severity citrus leaves using Plantix software and ImageJ software. Based on results study, it was found that disease at first location (10.641%), second (53.278%), third (15.828%) which were generally fruit plants caused by fungi based data, diseases in first, second, locations bacterial diseases. cell culture, isolates be round white color wit...

BACKGROUND To evaluate the in vitro activities of Ethiopian Thymus schimperi with other three hydro distilled essential oils against Dermatophytes (Tricophyton spp. and Microsporum spp.) and other pathogenic micro organisms. METHODS The studies were carried out using Agar disk diffusion method for screening the most effective essential oils and Agar dilution to determine Minimum Inhibitory Co...

Huanglongbing (HLB) is a severe citrus (Citrus spp.) disease associated with the bacteria genus Candidatus Liberibacter, detected in Brazil in 2004. Another bacterium was found in association with HLB symptoms and characterized as a phytoplasma belonging to the 16SrIX group. The objectives of this study were to identify potential leafhopper vectors of the HLB-associated phytoplasma and their ho...

Xylella fastidiosa (Xf) subsp. Pauca causes citrus variegated chlorosis (CVC) disease in Brazil, resulting in significant production losses in the citrus industry. Xf is mainly transmitted by three species of sharpshooters (Hemiptera: Cicadellidae) in Brazil; Dilobopterus costalimai (Young), Acrogonia citrina Marucci & Cavichioli and Oncometopia facialis (Signoret). We identified bacterial comm...