Making Sense Of Weight Loss
Obesity is on the march. The numbers are plain. - 127 million adults within the U.S. Are ob…
Read more
Showing posts with the label Fungicide applicationShow all
Fungicide application
Change in Presidio label: grape is no longer listed.
The label of Presidio has been changed, and unfortunately, the grape was removed from the list of hosts. This means that we no longer able to purchase Presidio to control grape downy mildew. If you already have it, it is still legally OK to use it for the grape, as long as you k…
Read more
Disease management
From bud break to pre-bloom disease considerations
Our reds broke buds, and whites have about 1-inch shoot growth on it today, and more rains in the weather forecast. It is time to think about Phomopsis! What happen from this point to pre-bloom is a relatively simple spray program to manage Phomopsis, downy mildew, and powdery m…
Read more
Fungicide application
Updated VA specific label for Topsin-M
In my pruning time disease considerations (this link opens Google Drive with this year's recommendation for trunk disease management), I refer to Topsin-M as a choice of trunk disease management, especially for Botryosphaeria canker, which is very common in our area. The pr…
Read more
Fungicide application
List of low PHI materials for Botrytis, powdery mildew, and downy mildew
Well, I was hoping that the rest of the season would be nice and sunny, but I was little naive. Looks like some portion of VA may be affected by tropical storm Hermine. Plus, probably due to the hot several weeks with no cooling time during the night in August, some cultivars ha…
Read more
Disease management
Seasonal updates and notes
1) What to do this and next week It looks like we have a window today for application, and after the rains over the weekend, next week looks good too. Right now, I am not too concerned about powdery mildew because it has been too cold and wet for this disease; however, next week…
Read more
Disease management
Bloom time disease management considerations
Due to many rain events and relatively cold weather, it looks like we are somewhat back in truck in terms of the growth stages. When shoots are about 10-12 inches long (i.e., right now), downy mildew, powdery mildew, and black rot tend to show up. Then, at blo…
Read more
Disease management
Handouts from recent IPM workshops
Thanks again for those of you who were able to attend IPM workshops. I hope you enjoyed the meetings, and if you have any suggestions or comments, please do not hesitate to contact me. Here are copy of fungicide updates and interactive fungicide planning presentations. 2016 Fun…
Read more
Disease management
Very late season spray options
With this week's precipitations that we (including many meteorologists) did not anticipated last week, some of you have contacted me to seek options for the late season application, especially for red-fruited cultivars that need to stay on the vine for a few more weeks. Her…
Read more
Disease management
Bloom time fungicide considerations
The warm May pushed our vines forward rather quickly. Many people in northern VA are about to see blooms (our 3-year old young Chardonnay vines are trace bloom), and I am sure rest of regions are going through bloom by now. This means that many of us are in the critical time f…
Read more
Fungicide application
More on fungicide (re)application timing topic
I posted general "rule of thumb" about application (or re-application) earlier this season . Dr. Annemiek Schilder at Michigan State University recently published a very nice write up about it. She answers many of questions we have in our mind, when the fungicide resi…
Read more
Disease management
On-going disase risk
As usual, we start our season with rains. It has been more than 13hr of wetness so far at Winchester with an average temperature of low 50s. It has accounted for a low risk of Phomopsis infection, and a line of rain just passed the area too. We will see how it will turn out o…
Read more
