Manage Powdery

Manage Powdery

Mildew by Rotating

Grape Fungicides

Powdery mildew lias reportedly developed resistance to strobilnrin and sterol inhibitor fongicides. And with high levels of overwintering inoculum present, it's important to rotate fungicides to prevent resistance and control powdery mildew.

Initiating a preventive program using Dithane* DF Rainshield’. Nova* 40W and new Quintec’' fongiodesin 2l Mis is a gixxl start.

Quintec is the newest resistance management tool for the control of powdery mildew. Qumoxyfen, the active ingredient in Quintec. has the ability to redistribute across expanding leaf and berry tissues, so it forms a protective barrier, even in hardto-covcr areas, tor superior bunch and leaf protection.

Wherever possible, and especially on wine grapes, sulfur should lie tank-mixed with Quintec and other powdery mildew fungicides as an additional resistance management practice

Nova remains one of the leading fungicides for control of powdery mildew and black rot. It's absorbed into the plant and kills the fungus early in the infection process before symptoms appear.

A protectant fungicide like 1 hthane kills fungus spores .as they germinate. Dithane may be applied on processing grapes until the bloom stage and through Lite season on wane grapes for control of dow ny mildew. Phomopsis, leaf spot and black rot. It makes a. great tank-mix partner with powdery mildew fungicides, such as Quintec, tor foil-spectrum disease control in grapes.

Tank-mix Dithane with alternate applications of Nova and Quintec" fungicides early season. He sure to use Nova and Quintec during die summer for improved late-scason disease control of powdery mildew.

For more information about using 1 >idiane, Quintec or Nova tor disease control in grapes, contact your local ag retailer.

Pattv Schurr