Proceedings of the California Avocado Research Symposium 2005

October 29, 2005

University of California, Riverside

Sponsored by the California Avocado Commission

TABLE OF CONTENTS

Art Schroeder Memorial Award: David E. Stottlemeyer

A. PESTS

1        Biology and Management of Avocado Lace Bug (ALB) in California
Mark Hoddle, J. Morse, R. Stouthamer, E. Humeres, F. Byrne, N. Toscano, S. Triapitsyn - Department of Entomology, UCR
D. Kellum, S. Durso, Linda Feeley – San Diego Ag. Commissioner’s Office
G. Bender - UC Cooperative Extension, San Diego County
W. Roltsch, R. Dowell – California Department of Food and Agriculture
G. Witney – California Avocado Commission

14      Biology, Management and Resistance Monitoring of Avocado Thrips and Persea Mite
Joseph Morse, A. Urena, E. Humeres, L. Robinson, P. Flores, P. Watkins - Department of Entomology, UCR

24      Evaluation of Systemic Chemicals for Avocado Thrips & Avocado Lace Bug Management
Joseph Morse, F. Byrne, N. Toscano, A. Urena, E. Humeres, L. Robinson – Department of Entomology, UCR

34      Results of Field Surveys for Neohydatothrips burungae in California
Mark Hoddle – Department of Entomology, UCR

B.  BREEDING AND GENETICS

38      Assessing the Genetic Determination of Valuable Avocado Traits Using Microsatellite (SSR) Markers & Quantitative Trait Locus (QTL) Analysis
Michael T. Clegg – Department of Ecology and Evolution, UC Irvine
H. Chen – Department of Botany and Plant Sciences, UCR
V. Ashworth – Department of Ecology and Evolution, UC Irvine

44      Screening and Evaluation of New Rootstocks with Resistance to Phytophthora cinnamomi
Greg W. Douhan, B. McKee, E. Pond, - Department of Plant Pathology, UCR
M. Crowley, M.L. Arpaia – Department of Botany and Plant Sciences, UCR
G. Bender, B. Faber, P. Mauk - UCCE San Diego, Ventura, Santa Barbara and Riverside Counties
M. Clegg – Department of Ecology and Evolution, UC Irvine

50      Enhancement of Avocado Productivity.  Plant Improvement: Selection and Evaluation of Improved Varieties and Rootstocks
Mary Lu Arpaia, D. Stottlemyer, E. Focht, M. Crowley, L. Bates, W. Manor, K. Fjeld, J. Sievert, – Dept. Of Botany and Plant Sciences, UCR
UC South Coast Research and Extension Center Avocado Volunteers
G. Douhan – Department of Plant Pathology, UCR
D. Crowley – Department of Environmental Sciences, UCR
M. Clegg – Department of Ecology and Evolution, UC Irvine
B. Faber – UCCE Ventura County and On-Farm Cooperators

62      Use of Simple Sequence Repeats (SSRs) to Determine Incidence and Effectiveness of Self-and Cross-Pollinated Fruit in Southern California
Tom Davenport, Z. Ying, T. Zhang – University of Florida, Tropical Research and Education Center, Homestead, FL
Raymond Schnell, C. Olano - USDA/ARS, National Germplasm Repository for Tropical/Subtropical Fruit Crops, Miami, FL

C.  MANAGEMENT & PHYSIOLOGY

72      PGR Strategies to Increase Yield of Hass Avocado
Carol J. Lovatt - Department of Botany and Plant Sciences, UCR

75      Eliminating Alternate Bearing of the Hass Avocado
Carol J. Lovatt - Department of Botany and Plant Sciences, UCR

87      Avocado Tree Physiology – Understanding the Basis of Productivity
Robert Heath, M. L. Arpaia – Dept. of Botany and Plant Sciences, UCR
M. V. Mickelbart – Plant Sciences Group, Lincoln University, Canterbury, NZ

D.  POSTHARVEST

120     Avocado Postharvest Quality
Mary Lu Arpaia – Dept of Botany and Plant Sciences, UCR
C. Requejo, A. Woolf, A. White – Quality Systems, HortResearch, Mt. Albert Research Center, Auckland, NZ
J. F. Thompson, D. S. Slaughter – Dept. of Biological and Agricultural Engineering, UC Davis
V. Tokar, Consultant; J. DeLyser, California Avocado Commission
J. Sievert, S. Collin, K. Fjeld, M. Toyota, D. Stottlemyer, E. Focht – Dept of Botany and Plant Sciences, UCR