We have a lot of cascade, nugget, willamette, chinook, and centennial. The centennials are our troublesome variety. A few years ago, we had a battle with mildew which plagues growers around here and centennials just plain did poorly. Our cascades are the studs. They have taken off and produced more per year than we thought possible and the plants aren't even fully matured yet.I "The IT Guy" for a local school district as well as grow hops with my parents on the side.QUOTE]
Which variety? UK hop growers aim for high disease resistance with lower myrcene and they don't normally irrigate as they get enough rainfall.
In Michigan, we get some rainfall but not normally a ton so we have to irrigate intermittently.
Our irrigation is a drip system from about a foot off the ground. Michigan isn't exactly a bad place to grow hops because we do get sufficient rainfall but not as much as say, Oregon. Oregon is one of those areas that is just prime for these plants.I'd have been inclined to dump the Centennials since the others are more resistant anyway. Do you overhead irrigate as this increases leaf wetness?
This is literally what I'm going to school for. I think it's interesting and worthwhile work.Civil engineer with 40+ years design and construction of dams and hydroelectric projects in Rhodesia (now Zimbabwe), western Canada including Yukon, Nicaragua and Laos. Still working - one last big project to go!