World's Best Scientists 2026 revealed!

D-Index & Metrics

Plant Science and Agronomy

D-Index
50
Citations
8117
World Ranking
2173
National Ranking
560

Research.com Recognitions

  • 2000 - Fellow of the American Phytopathological Society

Overview

What is he best known for?

The fields of study he is best known for:

  • Botany
  • Ecology
  • Fungus

The scientist’s investigation covers issues in Botany, Colletotrichum acutatum, Alternaria alternata, Fungi imperfecti and Alternaria. Botany is closely attributed to Horticulture in his study. His Horticulture research includes elements of Windbreak and Xanthomonas campestris.

His research in Colletotrichum acutatum intersects with topics in Fungicide, Benomyl, Abscission, Colletotrichum and Petal. His Alternaria alternata course of study focuses on Alternaria citri and Phylogenetics. The study incorporates disciplines such as Host, Leaf spot and Rough lemon in addition to Alternaria.

His most cited work include:

  • Compendium of citrus diseases. (259 citations)
  • Lifestyles of Colletotrichum acutatum. (205 citations)
  • Molecular systematics of citrus-associated Alternaria species. (139 citations)

What are the main themes of his work throughout his whole career to date?

Lavern W. Timmer mostly deals with Botany, Horticulture, Rutaceae, Fungicide and Alternaria. The Botany study combines topics in areas such as Colletotrichum acutatum and Inoculation. As part of one scientific family, Lavern W. Timmer deals mainly with the area of Rutaceae, narrowing it down to issues related to the Phytophthora nicotianae, and often Phycomycetes.

His research in the fields of Benomyl and Metalaxyl overlaps with other disciplines such as Disease control. His work investigates the relationship between Alternaria and topics such as Alternaria alternata that intersect with problems in Alternaria citri, Spore, Host and Tangor. His biological study spans a wide range of topics, including Elsinoë fawcettii and Leaf spot.

He most often published in these fields:

  • Botany (70.10%)
  • Horticulture (54.64%)
  • Rutaceae (36.08%)

What were the highlights of his more recent work (between 2005-2015)?

  • Botany (70.10%)
  • Horticulture (54.64%)
  • Fungicide (29.90%)

In recent papers he was focusing on the following fields of study:

His primary areas of study are Botany, Horticulture, Fungicide, Orange and Inoculation. Botany is closely attributed to Colletotrichum acutatum in his research. His studies deal with areas such as Ribosomal RNA and Blight as well as Colletotrichum acutatum.

He combines subjects such as Alternaria alternata and Tangor with his study of Fungicide. In his research on the topic of Abscission, Petal is strongly related with Conidium. He focuses mostly in the field of Rutaceae, narrowing it down to matters related to Citrus fruit and, in some cases, Fresh market and Colonization.

Between 2005 and 2015, his most popular works were:

  • Discord between morphological and phylogenetic species boundaries: incomplete lineage sorting and recombination results in fuzzy species boundaries in an asexual fungal pathogen (56 citations)
  • Postbloom fruit drop of citrus and key lime anthracnose are caused by distinct phylogenetic lineages of Colletotrichum acutatum. (46 citations)
  • Comparison of Molecular Procedures for Detection and Identification of Guignardia citricarpa and G. mangiferae. (40 citations)

In his most recent research, the most cited papers focused on:

  • Botany
  • Ecology
  • Genetics

Lavern W. Timmer spends much of his time researching Botany, Orange, Guignardia, Citrus black spot and Horticulture. His work on Fungi imperfecti as part of general Botany study is frequently linked to Intergenic region, therefore connecting diverse disciplines of science. His studies in Fungi imperfecti integrate themes in fields like Colletotrichum and Colletotrichum acutatum, Colletotrichum fragariae.

His Guignardia study incorporates themes from Tangor, Pyrimethanil, Fungicide and Rutaceae. His Citrus black spot research is multidisciplinary, incorporating elements of Biotechnology, Fludioxonil and Postharvest. His work deals with themes such as Elsinoë fawcettii, Elsinoë, Rough lemon and Ascomycota, which intersect with Genetic analysis.

Best Publications

  • Compendium of citrus diseases.

    J.O. Whiteside;S.M. Garnsey;L.W. Timmer

  • Lifestyles of Colletotrichum acutatum.

    N. A. Peres;L. W. Timmer;J. E. Adaskaveg;J. C. Correll

  • Molecular systematics of citrus-associated Alternaria species.

    T.L. Peever;G. Su;L. Carpenter-Boggs;L.W. Timmer

  • Benomyl Sensitivity of Isolates of Colletotrichum acutatum and C. gloeosporioides from Citrus.

    N. A. R. Peres;N. L. Souza;T. L. Peever;L. W. Timmer

  • Molecular, ecological and evolutionary approaches to understanding Alternaria diseases of citrus

    Kazuya Akimitsu;Tobin L. Peever;L. W. Timmer

  • Worldwide Phylogeography of the Citrus Brown Spot Pathogen, Alternaria alternata

    T. L. Peever;A. Ibañez;K. Akimitsu;L. W. Timmer

  • Alternaria diseases of citrus - Novel pathosystems.

    Lavern W. Timmer;Tobin L. Peever;Zvi Solel;Kazuya Akimitsu

  • Population Genetic Structure and Host Specificity of Alternaria spp. Causing Brown Spot of Minneola Tangelo and Rough Lemon in Florida.

    T. L. Peever;Y. Canihos;L. Olsen;A. Ibañez

  • Indole derivatives produced by the fungus Colletotrichum acutatum causing lime anthracnose and postbloom fruit drop of citrus

    Kuang Ren Chung;Turksen Shilts;Umran Ertürk;L W Timmer

  • Infection of flower and vegetative tissues of citrus by Colletotrichum acutatum and C. gloeosporioides.

    Muhammed Zulfiqar;R. H. Brlansky;L. W. Timmer

  • An Isolate of Alternaria alternata That Is Pathogenic to Both Tangerines and Rough Lemon and Produces Two Host-Selective Toxins, ACT- and ACR-Toxins

    A. Masunaka;K. Ohtani;T. L. Peever;L. W. Timmer

  • Baseline Sensitivities of Fungal Pathogens of Fruit and Foliage of Citrus to Azoxystrobin, Pyraclostrobin, and Fenbuconazole.

    S. N. Mondal;Alka Bhatia;Turksen Shilts;L. W. Timmer

  • Compendium of Citrus Diseases

    Darin Eastburn;J. O. Whiteside;S. M. Garnsey;L. W. Timmer

  • Compendium of Citrus Diseases, Second Edition

    L. W. Timmer;S. M. Garnsey;J. H. Graham

  • Engineering a genetic transformation system for Colletotrichum acutatum, the causal fungus of lime anthracnose and postbloom fruit drop of citrus

    Kuang Ren Chung;Turksen Shilts;Wei Li;L W Timmer

  • Induction of phytohormones and differential gene expression in citrus flowers infected by the fungus Colletotrichum acutatum.

    Katherine A. Lahey;Rongcai Yuan;Jacqueline K. Burns;Peter P. Ueng

  • Metalaxyl-Resistant Isolates of Phytophthora nicotianae: Occurrence, Sensitivity, and Competitive Parasitic Ability on Citrus

    L. W. Timmer;J. H. Graham;S. E. Zitko

  • Discord between morphological and phylogenetic species boundaries: incomplete lineage sorting and recombination results in fuzzy species boundaries in an asexual fungal pathogen

    Jane E Stewart;Jane E Stewart;Lavern W Timmer;Christopher B Lawrence;Barry M Pryor

  • Postbloom fruit drop of citrus and key lime anthracnose are caused by distinct phylogenetic lineages of Colletotrichum acutatum.

    N A Peres;S J Mackenzie;T L Peever;L W Timmer

  • Distribution and Characterization of AKT Homologs in the Tangerine Pathotype of Alternaria alternata.

    A. Masunaka;A. Tanaka;T. Tsuge;T. L. Peever

  • The efficacy of windbreaks in reducing the spread of citrus canker caused by Xanthomonas campestris pv. citri

    T. R. Gottwald;L. W. Timmer

  • Environmental Factors Affecting Production, Release, and Field Populations of Conidia of Alternaria alternata, the Cause of Brown Spot of Citrus

    L. W. Timmer;Z. Solel;T. R. Gottwald;A. M. Ibañez

Frequent Co-Authors

Natalia A. Peres
Natalia A. Peres University of Florida
Tobin L. Peever
Tobin L. Peever Washington State University
James H. Graham
James H. Graham University of Florida
Kazuya Akimitsu
Kazuya Akimitsu Kagawa University
Pamela D. Roberts
Pamela D. Roberts Southwest Florida Research
Randy C. Ploetz
Randy C. Ploetz University of Florida
James C. Correll
James C. Correll University of Arkansas at Fayetteville
Barry M. Pryor
Barry M. Pryor University of Arizona
Roger D. Magarey
Roger D. Magarey North Carolina State University
Armando Bergamin Filho
Armando Bergamin Filho Fundação de Estudos Agrários Luiz de Queiroz

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