- Author: Brad Hanson
It's that time of the year when we're planning preemergence (aka "residual") herbicide programs for orchard and vineyard crops in California. Typically, these are the herbicides that are applied in the fall, winter, or early spring BEFORE weeds emerge (preemergence) and they usually affect weeds as they germinate or are just beginning to emerge from the soil. [often, people mistakenly think these herbicides kill seeds or sterilize the soil which is not actually the case].
As you're planning the specific program for the weed problems in your orchards and vineyards (or any site, really), I thought it would be a good time to review some of the...
- Author: Lynn M. Sosnoskie
When I first started my Ph.D. in Weed Science, I encountered a strange, new language that appeared to be composed, almost entirely, of acronyms. PRE. POST. PD. Layby. PPI. AI. Etc...
You see, I didn't grow up in, or even around, agriculture; I was born and raised in the "Coal Region" of Pennsylvania and I was infinitely more likely to see anthracite sliding down the chutes of coal trucks (into my neighbors' basements) than I was a John Deere tractor.
So I had to learn. This blog is meant to be a primer for the (similarly) uninitiated.
Firstly, a definition to get us started.
Herbicide: To be honest, there are lots of...