Tomatoes targeted

06/01/2008 02:00:00 AM

Watch your pH: Dow does not recommend tankmixing Rally with foliar nutrients, since it may reduce Rally’s performance, Mueller says. If you need to tankmix with foliar nutrients, Dow recommends first adding those products to the tank, buffering the spray mix pH to between 6.5 to 7.5, then adding Rally.

Although potassium bicarbonate products can help control mildew, they also can increase the spray mix pH. Because of that, Dow does not recommend tankmixing them with its fungicide.

Cultural control: Mueller recommends plowing under tomato fields as soon after harvest as possible to reduce the amount of inoculum.

“Last year we saw harvested fields which had severe mildew. These may have served as inoculum sources for adjacent fields,” Mueller says.

Should you have a fungicide performance problem, contact your local Cooperative Extension office or the manufacturer’s representative.

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