There are a couple new fungicide combinations available to Manitoba farmers this year and perhaps a new one if final regulatory approval comes in time.
BASF’s Twinline combines the active ingredients in the fungicides Headline (Group 11) and Caramba (Group 3) into one jug.
The product controls a number of cereal diseases including leaf, stem rust and tan spot in all types of wheat, as well as fusarium head blight suppression in wheat, oats, rye and barley.
Blanket is a co-pack from MANA consisting of azoxystrobin, a Group 3 fungicide and Bumper (propiconazole) a Group 11.
It controls septoria leaf spot and tan spot in wheat and barley and leaf and stripe rust in winter wheat, spring wheat and barley.
“It’s nice to see the combination as far as resistance management is concerned,” Holly, provincial plant pathologist Derksen said.
Attacking a plant disease with two different modes of action at the same time greatly reduces the possibility of the disease becoming resistant to either group.
DuPont’s new Acapela fungicide has been approved for registration but won’t be on the market in time to be used on winter wheat this spring, David Kloppenburg, DuPont’s launch manager for insecticides and fungicides, said in an interview May 30. However, he added Acapela should be available to treat some spring cereals, pulse, corn and soybeans.
“Our objective is to get it into the hands of a wide spectrum of growers across all three (Prairie) provinces and across the different crops as well,” he said.
Acapela, a Group 11 fungicide, contains the new active ingredient picoxystrobin. According to DuPont Acapela “provides superior protection against key leaf diseases.”
In cereal crops those include cereal leaf rust, powdery mildew, septoria leaf blotch and tan spot.
“Acapela has unique movement properties that differentiate it from other fungicides,” Kloppenburg said. “It moves across the waxy layer of the leaf surface and systemically within leaf tissues.”
Like most fungicides Acapela works best when applied before plants are infected, however, the fungicide offers post-infection control on cereal disease, he said. Acapela can’t cure an infection where symptoms are showing, but it can stop a new infection that has occurred but isn’t visible yet, Kloppenburg said.
Acapela is also the first fungicide registered to control white mould in soybeans, he said.
DuPont is working to add sclerotinia control in canola and stem rust control in wheat to its label, Kloppenburg said.
DuPont’s new Vertisan fungicide was registered last fall and is available at many Western Canadian retail outlets.
Vertisan’s active ingredient is penthiopyrad (Group 7).
Although Vertisan is registered for cereals, corn, soybeans and potatoes, Kloppenburg said DuPont is focusing the product on canola, pulses and sunflowers. It controls sclerotinia in canola and suppresses sclerotinia head rot in sunflowers. Vertisan also controls ascochyta blight, grey mould and rust in pulse crops such as chickpeas, field peas and lentils.
BASF’s Lance is also registered for suppression of head rot in sunflowers.