GrapeIPM.org Guest Account and upcoming grape disease management workshop

As I presented at the VVA meeting in February, our team has been working on an online disease management aid called grapeIPM.org. The main functions of the system are to help you keep track of your fungicide (and other pesticides) inventory, planning, usage, record-keeping, and reporting.

We are in the last stage of the developmental phase, and are welcoming users to test it out. There are some details to be polished, but most of the functions are available. I have been using it in the past two seasons, and I am surprised how it made my spray preparation and record-keeping easier.

If you wish to participate, please go to grapeIPM.org and request a new account. It is free for now. If you just want to see how it works, we created a guest account.

Username: guestvineyard
Password: VitisGu3st

If you find some errors or have some comments or suggestions, please let me know.

With all the restrictions on the gathering of people, I think it is a very good time for you to think about this year's spray plan. ;)

Speaking of which, I will have a hands-on workshop on the 24th starting at 1PM. We will use Zoom application (https://zoom.us/), which you can connect via a computer or smartphone. In order for us to organize the event, please register using the form below:

Registration form for grape disease management workshop on 3/24/2020
(Note, there is an error in my part to restrict the entry earlier. I fixed the issue, and the form should be open to everybody.)

Once you register, we will send an invitation to the meeting, a day or two before the meeting. Please click on the link in the invitation before the meeting. It may ask you to install Zoom application on your computer or smartphone or tablet.

Comments

Season's Greetings!

I hope you and your family have a good holiday season and a Happy (and safe) New Year! Thanks again for your support of our programs. Here are some recent media highlights. 😉 The link will open a new window. AHS AREC promotional video that highlights some of our activities. The link did not work... It asks you to log in to VT. I will request the IT people to change the setting, but in a meantime, here's the same video. We also appeared in the Library of Congress project “Winery Workers of Virginia”. One more announcement: I will be moving this blog to a new location ( ext.grapepathology.org ) early next year. I had to make a change due to the email subscription service, which has been terminated. You do not need to change your bookmark or your email subscription. The URL will be forwarded to a new site and your email subscription has been moved to a new site already.

Downy mildew gallery

At Winchester, we had light rain events during the night of 6/12/09, but it was short events and the relative humidity was low (80% or so), thus it probably did not promote any infections. However, we are experiencing continuing favorable nights for downy mildew sporulation (average T>55F, high RH (80-100%)) for 10 days now. Yesterday, we conducted a formal disease assessment, and observed first incidence of powdery mildew for this season. We had plenty of infection events in last two months, so it was not surprising. At this point, it is a trace level of infection on untreated vines. Downy mildew was the major disease so far. We had up to 40% incidence on untreated vines. Next runner-up was black rot. It varies vine to vine, but some of vine had 10-15% incidence. Phomopsis was omnipresent as I expected from early May rain falls, but severity was low overall. We will examine diseases again in the near future, and I will update as the season goes. Here is downy mildew ga

Recent downy mildew risk events

It seems that several rain events have happened over the course of the past two weeks or so. Here is a summary of recent downy mildew risk events, based on the NEWA stations and DMCast. Bristol, VA Fifteen days with potential DM infection event(s) since Sept 1. The latest event happened last Sunday. Floyd, VA Eleven days with potential DM infection event(s) since Sept 1. The last event happened last Friday. Charles City, VA Twelve days with potential DM infection event(s) since Sept 1. The latest event happened yesterday. Central VA Since there was a wide variation among stations, I am listing several around Central VA. Tyro, VA Nine days with potential DM infection event(s) since Sept 1. The latest event happened yesterday. Red Hill and Crozet, VA Only one day with potential DM infection event(s) since Sept 1. Olympic Lake Thirteen days with potential DM infection event(s) since Sept 1. The latest event happened last Sunday. Washington, VA Eight days with potential DM infection event

Virginia Grape Disease Updates

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