Reviews

I use Topsin in conjunction with some other fungicides as part of a rotation to prevent possible immunity buildup on my wine grapes. Topsin is an important part of my arsenal. A user needs to exercise caution if they are using small amounts from the water soluble bags. The bags will easily disintegrate, as designed for large scale applications, if any water should be accidently spilled on them.

Worked well to eliminate filamentous algae in our pomd.

We have used this product in our certified organic orchard for several years with reliably good results. It does well as a fungicide on apple scab, our principal target when we use accurate weather data. Keystone's prices were significantly better than four other on line suppliers we checked. One negative: two of the bags were leaking on delivery.

Keystone and their products are great, easy and priced competively.

I have used this product in the past with favorable results.

I haven't had a chance to use this product yet. However if it preforms as well as the other Keystone products I am sure I won't be disappointed .