Results 61 to 70 of about 5,474 (163)

Spring pruning and fertilizing of california live oak trees

California Agriculture, 1947
The tip mildew or “witches broom” disease of the California Live Oak trees is increased by early spring pruning and fertilization. These are common practices which should be discontinued or avoided.
P Miller
doaj  

Integrated analysis of ATAC-seq and RNA-seq reveals the TCP-ARF molecular module related to pathogenic process of phytoplasma infection in Paulownia fortunei

BMC Genomics
Background Witches’ broom is an important disease of the Paulownia fortunei. Understanding the pathogenesis of witches’ broom is a prerequisite for its prevention and control. Phytoplasma is the pathogen of Paulownia witches’ broom.
Shunmou Huang, Bingbing Li, Yabing Cao, Guoqiang Fan   +3 more
doaj   +1 more source

Identification, occurrence, incidence and transmission of phytoplasma associated with Petunia violacea witches’ broom in Iran.

, 2019
A petunia witches’ broom (PvWB) disease, characterized by phyllody, virescence, witches’ broom, little leaf and yellowing, was observed in municipal lands and parks in Bandar Abbas, Hormozgan province, Iran.
Chamran Hemmati, Hemmati C., M. Nikooei, Mehrnoosh Nikooei, Assunta Bertaccini, A. Bertaccini   +5 more
core   +1 more source

Exploring the Research Evolution of Cacao Diseases Over the Past Two Decades: A Review

Plant Pathology, Volume 74, Issue 6, Page 1470-1494, August 2025.
A scientometric analysis (1999–2025) reveals multidisciplinary research on cacao diseases, highlighting genomics and global collaboration, with gaps in field validation and knowledge integration. ABSTRACT Cacao (Theobroma cacao) is an economically vital world crop facing threats from various diseases, causing substantial yield losses.
Taís Letícia de Oliveira Santos, Flávia Luiza Araújo Tavares da Silva, Deborah Araújo Dionízio da Silva, Priscilla Efraim   +3 more
wiley   +1 more source

Single nucleotide polymorphisms from Theobroma cacao expressed sequence tags associated with witches' broom disease in cacao [PDF]

, 2009
In order to increase the efficiency of cacao tree resistance to witches¿ broom disease, which is caused by Moniliophthora perniciosa (Tricholomataceae), we looked for molecular markers that could help in the selection of resistant cacao genotypes.
Lima, Leila S., Gesteira, Abelmon, Lopes, Uilson Vanderlei, Pires, José Luis, Gramacho, Karina Peres, Micheli, Fabienne, Carels, Nicolas, Gaiotto, Fernanda Amato, Zaidan, Humberto A., Cascardo, Julio Cezar M., Novais, R.   +10 more
core   +1 more source

Multilocus Sequence Typing of “Candidatus Phytoplasma Solani” and Detection of RNA Viruses Infecting Cucurbits in the Marmara Region, Türkiye

Plant Pathology, Volume 74, Issue 6, Page 1905-1914, August 2025.
This study provides the first multilocus genetic characterisation of “Candidatus Phytoplasma solani” strains infecting cucurbits. ABSTRACT The stolbur disease associated with “Candidatus Phytoplasma solani” (CaPsol) is very common in Europe and the Mediterranean regions and adversely affects perennial or annual plants but is rarely reported on ...
Filiz Randa‐Zelyüt, Ali Karanfil
wiley   +1 more source

An investigation of the molecular biology and genetics of Witches' Broom disease of Protea cynaroides

, 1987
Bibliography: leaves 102-117An investigation was undertaken into the biology and genetics of Witches' Broom disease on Protea cynaroides. The investigation was approached in two ways: firstly, from a physiological and pathological angle and secondly at ...
Dorrington, Rosemary Ann
core  

Wild or Introduced? Investigating the Genetic Landscape of Cacao Populations in South America

Ecology and Evolution, Volume 15, Issue 7, July 2025.
Cacao populations span a continuum from wild to domesticated forms, shaped by complex patterns of human influence and selection. Using RAD‐sequencing, we show that native Upper Amazonian populations harbor the highest genetic diversity, while the Guiana group likely represents an isolated wild lineage and Amelonado shows clear signals of artificial ...
Matheus Colli‐Silva, James Edward Richardson, José Rubens Pirani, Antonio Figueira   +3 more
wiley   +1 more source

Molecular detection and identification of a phytoplasma associated with cinnamon (Cinnamomum cassia B.) witches’ broom disease in Quang Ngai province, Vietnam

Vietnam Journal of Science, Technology and Engineering, 2017
Cinnamon (Cinnamomum cassia B.) is an important crop in Vietnam for domestic consumption and exportation. In recent years, a disease known as cinnamon witches’ broom (CinWB) has been discovered on cinnamon grown in Tra Bong district - Quang Ngai ...
Thi Nguyen Duong, Thanh Van Dao
doaj   +1 more source

Fungal biomass distribution in witches' broom disease of cocoa. [PDF]

The basidiomycete fungus Crinipellis perniciosa (Stahel) Singer is the causative agent of witches' broom disease of cocoa (Theobroma cacao). Witches' broom disease is endemic to large areas of the Americas and is a major constraining factor on cocoa ...
Penman, Danny
core   +1 more source