Arizona Crop Information Site logo
University of Arizona
Vegetable IPM Updates Archive
 
Cooperative Extension
 
 
 
 
Herbicide Carryover (October 28, 2015)
Herbicides that have residual soil activity are very useful in the low deserts, where weed seeds continue to germinate with each irrigation year-round. These herbicides can also be hazardous, however, when sensitive crops are planted into soil where they are still active. Determining the potential for crop injury from herbicides used on previous crops can be difficult. Injury potential is related to several interrelated factors such as soil type, irrigation practices, tillage, environmental conditions, organic matter and other conditions. Injury can vary from field to field, year to year and even be variable within the same field. Rotational crop restrictions on product labels must often cover many diverse conditions and geographic regions and are frequently much longer than needed. The chart below contains the crop interval for the major crops and herbicides used in the deserts as well as the usual soil persistence for each product. You can also download chart here.
VIPM_Update_Vol_6_Num_22_003.png
Burndown Herbicide Symptoms


Click picture to listen to Barry'update video
                        link
To contact Barry Tickes go to: btickes@ag.arizona.edu.
Back

For questions or comments on any of the topics please contact Marco Pena at the Yuma Agricultural Center.
College of Agriculture, The University of Arizona, Tucson, AZ.


Home | Cotton | Veggies | Forages | Grains | Citrus | Crop x Crop
Insects | Diseases| Weeds | Pesticides | Economics | News | Weather | Research | Photos | Contacts | General Info.






Copyright © 2001 University of Arizona,
College of Agriculture and Life Sciences
Webmaster: Al Fournier (acis@ag.arizona.edu)