Pest management Guidelines
-
In addition to Botrytis, there is a goodly amount of powdery mildew starting to show up (see photo from today). Based on the current levels of downy and powdery mildew observed, we have a potentially difficult season ahead – once more. Remember, you are fighting an epidemic, which is a movie yet to be made;…
-
Rainfall has been plentiful this spring and early summer in many areas across the Southeast, which is a considerable change from last year in many of the same areas. A wet summer can put additional stress on weed management programs and result in escaped weeds that thrive. If you have young, newly planted vineyards make…
-
We recently had a Norton (aka Cynthiana) vine submitted to our clinic by Clark McAllister (county agent in Lumpkin County), and the vine(s) were showing odd symptoms for Norton. Leaves were somewhat chlorotic, but the major concerning symptom was a ring spot on the leaves, along with spots on the shoots which are similar to those of…
-
I have had a few questions relative downy mildew management, especially with the floods of the last week. Relative Abound fungicide, I would not trust any of the strobilurins alone for downy mildew management. If using Abound, I would use the high rate, and I would add some Captan to the mix. When using any…
-
There is a big hairy beast starting to show up out there, and unfortunately, it is not Big Foot. We are starting to observe Botrytis in some vineyards, so it is time to scout for this pathogen. Cain Hickey took this photo, and he states the following: “This is a reminder to pay attention to…
-
As I am writing this, the water is gushing down. Needless to say, we have experienced significant rainfall as of late. When it hasn’t been raining, it has been cloudy and humid. This is “great” fungal disease weather – especially for downy mildew and black rot. With the rain we have been experiencing, contact chemicals…
-
Japanese beetle season is upon us. These beetles feed on over 300 species of plants including tree fruits, small fruits, vegetables, ornamentals, and of course, grapes. Japanese beetles can be a severe pest of grapes during the summer, feeding mainly on foliage and (thankfully) rarely on the berries.
-
With every application of fungicides or insecticides it is crucial to read and comply with the labeled instructions. At the end of each year it should be your goal to have achieved control of your pest and disease problems with as little applied chemicals as possible. Not only does this make sense financially, but applying…
-
All, I sent an email out last week with a link to Dr. Mizuho Nita’s blog. Here it is again: https://grapepathology.blogspot.com/ Mizuho is a grape pathologist at Virginia Tech’s Alson H Smith, Jr. AREC in Winchester, VA. He provides a wealth of information on grape disease management in the eastern US. Though Mizuho’s information is…