INDIANAPOLIS -- Dow AgroSciences announces that it has received U.S. EPA registration of Indar(R) fungicide for the broad-spectrum control of diseases in apples.

Containing the active ingredient fenbuconazole, Indar provides control against apple scab, rusts and powdery mildew, as well as summer diseases of apples like sooty blotch and flyspeck.

"Indar is a protectant fungicide offering strong residual, along with some locally systemic and curative activity," says Janice Smith, marketing specialist for Dow AgroSciences' portfolio of fungicides. "It provides the same level of control of scab, powdery mildew and rust that orchardists have come to expect from other sterol inhibitors (SIs) or strobilurins, while also offering control of summer diseases."

Brian Olson, product technology specialist for Dow AgroSciences, recommends that Indar be tank-mixed with a protectant like Dithane(R) DF Rainshield(R) fungicide from pink through second cover.

"Indar has been one of the top performers in university and cooperator field trials," Olson says. "It has shown better protection of the fruit and leaf because it remains on the fruit and leaf surface longer. Rainfastness has been outstanding and we've seen no negative impact to fruit finish from Indar."

Olson recommends that application of Indar(R) fungicide begin at green tip or when environmental conditions are favorable for disease development. Indar should be applied on a seven-to-10-day schedule through the first cover spray, then 10 to 14 days afterward.

Keith Yoder, professor of plant pathology at Virginia Tech University, says Indar has unique attributes over other commonly used SI fungicides.

"Traditionally, we have not looked for summer disease control from the SI compounds. Indar gives more control of sooty blotch or flyspeck than what we have seen with other SI products," Yoder says. "A use pattern we might see is if there is a situation where we need the benefits of summer disease control from Indar, but we still need some activity to protect late-season growth from powdery mildew."

While Indar(R) fungicide provides good activity against powdery mildew, Olson says that Dow AgroSciences recommends, based upon trial work, that orchardists use Nova(R) 40W fungicide when powdery mildew is their chief concern. He agrees with Yoder's assessment that Indar should be used when control of both summer diseases and powdery mildew is important.

Indar will be available in water-soluble pouches, known as Indar 75WSP. This formulation is currently available for use in stone fruits like peaches, apricots, nectarines and cherries. It will eventually be available in a flowable formulation, known as Indar 2F.

More information about Indar(R) fungicide is online at

SOURCE: Dow AgroSciences news release.