Archive Nut, Prune and Olive Programs

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May 2025Archived

 

Field picture submitted by Elizabeth Fichtner

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Kearney Agricultural Research and Extension Center: Page

Brown Rot

Extension topics Introduction to brown rot of stone fruit Inoculum potential at bloom (Flower Incubation Technique, FIT) Overnight freezing incubation technique (ONFIT) Risk assessment of blossom blight of prunes caused by Monilinia fructicola Risk analysis for latent infection of prune brown rot ca...
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Kearney Agricultural Research and Extension Center: Page

Introduction to brown rot of stone fruit

Brown rot, caused by Monilinia fructicola (G. Wint.) Honey, is a destructive disease of stone fruits (Prunus spp.). The disease expresses as blossom blight and fruit rot. In spring, ascospores or conidia produced from mummies infected by M.
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Kearney Agricultural Research and Extension Center: Page

Inoculum potential at bloom

(Flower Incubation Technique, FIT) Before using the risk analysis approach to estimate the possible risks of blossom blight and latent infection for a specific orchard, the inoculum potential of the orchard should be determined.
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Kearney Agricultural Research and Extension Center: Page

Overnight freezing incubation technique (ONFIT)

This technique can be used to determine the latent infection of fruit caused by Monilinia fructicola. Immature fruit collected from orchards could be used to determine the incidence of latent infection. Surface sterilize the fruit in a chlorine solution (32 ml of 0.
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Kearney Agricultural Research and Extension Center: Page

Plum Pox Virus

Sharka, or plum pox, is probably the most dreaded disease of stone fruit trees. It plagues orchards in Europe, has been in Chile for several years, and sadly has now been confirmed in the United States. In October 1999, infected trees were found in several orchards in a small area in Pennsylvania.
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Kearney Agricultural Research and Extension Center: Page

Current research interests

An overall theme to my research can be best described as Investigating the interactions between mosquito disease vectors and the changing environment. The natural world is changing at an alarming rate due mainly to anthropogenic activities, some of which are more obvious than others.
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Kearney Agricultural Research and Extension Center: Page

Publications

High level methoprene resistance in the mosquito Ochlerotatus nigromaculis (Ludlow) in Central California Abstract: In the summer of 1998, failures of methoprene field applications to control the mosquito Ochlerotatus nigromaculis (Ludlow) were noticed in several pastures in the outskirts of Fresno,...
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