- Author: Pershang Hosseini
- Author: Bradley Hanson
- Author: Mohsen B. Mesgaran
- Posted by: Gale Perez
California is the largest producer of processing tomato in the US (Winans et al. 2020). However, the profitability of the tomato industry in California is seriously threatened due to the presence of the parasitic weed branched and Egyptian broomrape (https://ucanr.edu/blogs/blogcore/postdetail.cfm?postnum=50241). These weeds can severely damage the host reducing the aerial biomass and leaf chlorophyll content (Mauromicale et al. 2008) with yield losses of up to 80% (Eizenberg and Goldwasser 2018).
Broomrape produces hundreds of thousands of tiny seeds (0.2 – 0.4 mm), which can be transported easily by humans, water, wind, and animals (Eizenberg et...
- Author: Matthew Fatino
- Author: Bradley Hanson
- Posted by: Gale Perez
Branched broomrape is a parasitic plant that is an “A-listed” noxious weed in California, requiring crop destruction and a hold order to be placed on reported fields. It has been reported in several commercial tomato fields in Yolo County in recent years and is of growing concern to the California tomato industry. Until recently, there have been no registered chemistries to control branched or Egyptian broomrape in California.
Rimsulfuron, marketed as Matrix SG by Corteva, is registered on tomatoes in California is widely used both PRE...
- Author: Bradley Hanson
One of the largest weed issues affecting the California processing tomato industry is the parasitic plant, branched broomrape (Phelipanche ramosa; Orobanche ramosa)
- https://ucanr.edu/blogs/blogcore/postdetail.cfm?postnum=50241
- https://ucanr.edu/blogs/blogcore/postdetail.cfm?postnum=47701
- https://ucanr.edu/blogs/blogcore/postdetail.cfm?postnum=43342
Last week, CDPR issued a positive decision on a 24c "Special Local Needs" label...
- Author: O. Adewale Osipitan
- Author: Bradley Hanson
- Author: Yaakov Goldwasser
- Author: Matthew Fatino
- View More...
From the California Agriculture 75(2):64-73. https://doi.org/10.3733/ca.2021a0012
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Abstract
Branched broomrape (Phelipanche ramosa), a parasitic weed that was the focus of a $1.5 million eradication effort four decades ago in California, has recently re-emerged in tomato fields in several Central Valley counties. Processing tomatoes are important to the California agricultural economy; the state produced over 90% of the 12 million tons of tomatoes grown in...
- Author: O. Adewale Osipitan
- Author: Bradley Hanson
- Author: Matthew Fatino
- Author: Mohsen Mesgaran
Article also published in California Weed Science Society Journal (March 2021 issue)
-Brad
In a previous article we gave a general background of branched broomrape (Phelipanche ramosa), a parasitic weed which was the focus of a $1.5 million eradication effort four decades ago in California, and now a re-emerging threat to California processing tomato (