Hero Image

Tree fruit, Citrus, Avocado, and Nuts

Local field research is conducted by Cooperative Extension advisors, in cooperation with University of California Extension Specialists, Experiment Station personnel and growers. Research efforts target new crops and varieties that are best adapted to local growing conditions and markets. Irrigation, fertilization, and soil management research helps growers use natural resources effectively. Innovations in cultural practices and pest control help local growers produce an abundance of fruits, nuts, cereal grains, vegetables and other crops with environmentally sensitive methods.

almond bloom

Topics in Subtropics Blog!
  • false chinch bug composite
    False Chinch Bug in New Avocado Plantings

    The false chinch bug (FCB), Nysius raphanus (Hemiptera: Lygaeidae), is a pest of many plants. FCB is a generalist and has been found to be a problem in many cropping systems such as soybeans, quinoa, tobacco, cotton, broccoli and other Brassicaceae...


    By Monique J. Rivera
    Author
    By Ben Faber
    Author - Advisor
  • bacterial canker classic
    It's not Disease, It's Lichen

    Not everything you see on a tree's bark is disease, although that's usually the first thought of a plant pathologist. Below are bacterial canker and black streak which are both significant problems in some California avocado orchards. Their cause is...


    By Ben Faber
    Author - Advisor
  • heilipus weevil
    Avocado Seed Weevil

    Proactive Management of the Avocado Seed Weevil, Heilipus lauri (Coleoptera: Curculionidae) Mark S. Hoddle, Department of Entomology, University of California Riverside, CA 92521 mark.hoddle@ucr.edu   Avocados are an iconic specialty crop in...


    By Ben Faber
    Author - Advisor