Second Hemiptera-Plant Interactions Symposium

University of California, Riverside (UCR), June 23-25, 2014

            We would like to bring to your attention an upcoming interdisciplinary Symposium on Hemiptera-Plant and Hemipteran-Plant Pathogen Interactions.  Hemiptera and other piercing-sucking herbivorous insects (e.g., thrips) are serious agricultural pests that negatively impact crop production directly by feeding on plants and indirectly by transmitting devastating plant pathogens.  Piercing-sucking herbivorous insects comprise a distinct guild of herbivores that, in many respects, act more like plant parasites than like herbivores in the conventional sense.  This makes the physiological and molecular interactions between piercing-sucking insects and plants very different from interactions between chewing herbivores and plants.  Consequently, the study of piercing-sucking insects forms a distinct subdiscipline within the overall discipline of insect-plant interactions.  Hemipterans also comprise the largest group of insect vectors of plant pathogens.  The mechanisms of transmission of plant pathogens by hemipteran vectors are very complex and involve intricate physiological and molecular interactions among the pathogen, vector, and plant.  

            The study of interactions among insects, plants, and plant pathogens is, by its nature, an interdisciplinary area of study.  Consequently, the Hemiptera-Plant Interactions Symposium will feature speakers who are entomologists with expertise on phytophagous hemipterans (and thysanopterans) and their host-plant interactions, plant physiologists and molecular biologists with expertise in plant vascular physiology and plant defense, and plant pathologists with expertise in transmission of plant pathogens by hemipterans.  The symposium is modeled after the highly successful first Hemiptera-Plant Interactions Symposium that was held in Piracicaba, Brazil in 2011.  The symposium will have five sections:


Phloem and Xylem Physiology and Vascular Sap-Feeding Hemipterans

Interactions Between Plants and Non-Vascular-Feeding Hemipterans

Transmission of Plant Pathogens by Hemipteran Vectors

Molecular Biology of Hemipteran-Plant Interactions

Interactions Among Hemipterans, Their Symbionts and Host Plants


            The symposium will be highlighted by internationally renown researchers in each section.  Each section also will include submitted oral and poster presentations by participants.  More details will be coming in future announcements, but for now, please keep the symposium in mind for your long range planning.  Please forward this to anyone whom you think may be interested.  We hope to see you all in Riverside in 2014!


Organizing Committee:


Greg Walker, Department of Entomology, UCR (

Linda Walling, Department of Botany & Plant Sciences, UCR (

James Ng, Department of Plant Pathology & Microbiology, UCR (

Isgouhi Kaloshian, Department of Nematology, UCR (


HPIS II Announcement 1.doc

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