Disease Pressure

Last week we received 0.7" of rain coupled with our typical summer heat of 94-100, is the perfect scenario for disease to pop up around the course.  We do spray the greens on a preventative basis and fortunately we just sprayed them with a fungicide the week before.  In the picture you can see why we spray preventatively for diseases throughout the summer.  As we spray the green we include the collar and turn the booms off at the edge.  Here you can see exactly where we shut off each boom and the yellow tan disease of dollar spot that popped up in the area that was not sprayed.

Something like this is actually good to see, because it tells us that we do need to keep with our fungicide applications, and the products that we are using are giving us very good control.

Red Thread Disease

Right now in the rough there are areas that have a tan look to them with a reddish tint on the leaf tissue. That is red thread disease, a disease that we have every year in June and appears more when we have wetness from rains.

Red Thread Disease

It really doesn't concern me to often because it does not injure or kill the plant.  It is just on the leaf tissue, makes it a little off color, and as soon as things warm up and dry out then it will disappear.  Different disease all have a different threshold level with me.  Ones on greens or low mowed areas that kill the plant have a very low threshold and I spray when we see them, ones like this and being the rough, it really needs to spread a lot before I go out and control it.