- Author: Elizabeth Mosqueda
- Author: Richard Smith
- Author: Steven Fennimore
- Posted by: Gale Perez
Elizabeth Mosqueda is an Assistant Professor at the California State University, Monterey Bay.
Richard Smith is a Vegetable Crop Production and Weed Science Farm Advisor with UC Cooperative Extension.
Steve Fennimore is a Cooperative Extension Weed...
- Author: Richard Smith
- Author: Steven Fennimore
- Posted by: Gale Perez
Spinach is susceptible to weed pressure because it is produced on high-density 80-inch wide beds with 18 to 42 seedlines. There is no opportunity to cultivate the bed top so all weed control is accomplished by managing weeds in prior rotations, cultural practices, chemical weed control or hand weeding. Clipped spinach is mechanically harvested and must be kept as weed free as possible to reduce hand weeding costs. In the recent UC publication, Sample costs to produce and harvest organic spinach (Tourte et al, 2015 http://coststudies.ucdavis.edu/current/ ) hand weeding costs averaged $440 per acre. However, weeding costs can easily exceed $1,000 per acre in weedy fields, and...
- Author: Richard Smith
- Posted by: Gale Perez
On January 12, 2016 the Federal EPA label for Kerb SC was reinstated for leaf lettuce. The registration on leaf lettuce was pulled in 2009 and Dow AgroSciences worked in the intervening years reregister Kerb. The new label allows for the use of Kerb from 25 to 55 day prior to harvest (Table 1). The 25 day preharvest interval is significant because it allows the use of Kerb on baby lettuce which is typically harvested in 25-30 days after the first wet date during the summer months (Figure 1). The 25 day preharvest interval gives growers an option for controlling weeds in high density plantings; this change is very helpful because high density plantings cannot be cultivated and weeds that occur must be removed by hand prior to mechanical...
- Author: Steven Fennimore
We ran the robovator in twin row processing tomato yesterday in the Westside of the San Joaquin Valley (see photo). We conducted intra-row cultivation at up to 5 mph without damage to tomato. With high labor costs and only a trickle of new herbicides we need to take this technology very seriously because it has great potential in California vegetable crops and probably many others like cut flowers.
- Author: Richard Smith
- Posted by: Gale Perez
From the Cooperative Extension Monterey County Crop Notes newsletter :: Mar-Apr 2015
The Apiaceae or carrot family includes important vegetable crops such as carrots, celery, cilantro, dill, fennel and parsley. All of these crops have a distinctive inflorescence known as an umbel. They also produce aromatic oils that give these plants their characteristic aromas and flavors. Many of these crops germinate slowly and are quite susceptible to weed pressure early in the production cycle. As a result, crops like celery are nearly 100% transplanted to give the crop a head start in the...
/span>