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Dow’s Quintec fungicide available for bacterial spot suppression in tomatoes
Jun. 30, 2015
Quintec fungicide (active ingredient: quinoxyfen) from Dow AgroSciences, known as an effective treatment for suppressing bacterial spot in peppers, is now available to tomato growers battling bacterial spot.
Because the disease thrives in environments with high temperatures, high humidity and rain, pressure from bacterial spot on tomatoes is increasing. Emerging evidence of copper resistance complicates control of bacterial spot.
The expanded label for Quintec gives tomato growers a proven, reliable treatment to suppress bacterial spot. As the only Fungicide Resistance Action Committee (FRAC) Group 13, many growers already include Quintec in management programs for bacterial spot in peppers and powdery mildew in cucurbits. Quintec is approved federally and in most states for application on tomatoes for suppression of bacterial spot; check state regulations to verify approval in a specific state.
With its unique mode of action, Quintec is ideal to rotate with copper plus mancozeb. Quintec can be tank-mixed with most insecticides. Dow AgroSciences does not recommend adding crop oil or tank mixing Quintec with micronutrients.
Bacterial spot can be destructive to tomato seedlings and can lead to total crop loss if untreated. Severe damage to enlarging fruit makes them unmarketable due to poor quality, resulting in major economic impact.
Quintec fungicide has been field-tested for more than four years on more than 12 different varieties of tomatoes. Dow AgroSciences recommends a rate of 6 oz./A per application for bacterial spot suppression.
The expanded Quintec label allows up to four applications per season for bacterial spot (24 oz./A per year), with a recommended re-treatment interval of seven to 14 days. The pre-harvest interval for Quintec is three days. Quintec is rainfast within one hour.
Quintec is registered under the U.S. Environmental Protection Agency Reduced Risk Pesticide Initiative.
Source: Delta Farm Press
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