- Author: Travis M Bean
Looking back at 2017, the devastating wildfires of California seem to have made an impression on the news of the nation. A recent article in the Washington Post offers some stark facts and figures about just how bad our 2017 wildfire season was in terms of lost lives, families left without homes, and the staggering number of acres burned. Both national and local news outlets offered plentiful coverage of these crises, and most have correctly identified the role of very wet conditions in the late winter and early spring in providing the fuel for the fires as well as the role of the subsequent drought allowed these fuels to transform into...
by David Doll, UCCE Pomology Farm Advisor (see also http://thealmonddoctor.com/)
With the emergence of herbicide-resistant weed populations, several perennial nut crop spray programs incorporate the use of pre-emergent herbicides. The correct use of these types of products provide the ability to control weeds for an extended period – sometimes into the late spring or early summer – reducing in-season burndown applications. When applying these products, proper application is critical to maximize weed control and the following points should be considered.
Herbicide selection. Pre-emergent herbicide selection should be based on the weed spectrum...
- Posted by: Gale Perez
Seth Watkins shared the following article with me--thanks Seth.
To see the actual article, visit https://agresearchmag.ars.usda.gov/2017/dec/drone/.
Weed Spotting By Drone
- Author: Brad Hanson
Glyphosate is one of the most widely used herbicides in the world and is extremely important in many of our orchard, vineyard, and annual crops as well as in non-crop and home situations. However, it can be confusing to understand some of the differences among various formulations of glyphosate herbicides.
I'll paraphrase a recurring extension question as “I'm trying to compare the rates and cost-effectiveness of two glyphosate herbicides. One lists the active ingredient as ‘41% glyphosate as the isopropylamine salt' and the other as 48.7% glyphosate as the potassium salt'. How do I compare these two herbicides?”
First important point, glyphosate is a weak acid...
- Author: John Madsen
- Posted by: Guy B Kyser
We were sampling plots in the Delta in July 2016, and found a small clump of this plant – pickerelweed (Pontederia cordata). Generally considered a desirable native wetland plant, it happens to fall in the same botanical family as the baddest of the bad in the Delta – waterhyacinth (Eichhornia crassipes). What does family mean in the botanical world, anyway? Although native here, pickerelweed is at best considered “occasional” in the Delta. Waterhyacinth falls somewhere between “abundant” and a “scourge,” depending on the year of reference. While there are a number of similarities in appearance (particularly in the characteristics of the flower, which is the original...