Fall Armyworm in NZ Maize: Four Years of Research
Four years since it was first detected in New Zealand, researchers and growers now know much more about management of maize pest fall armyworm (FAW).
Well-known dairy farmer and local body politician Doug Leeder says maize yields in the region are the best they have been for the last five or six years. In the past couple of years a series of rain events have seen significantly lower yields in both the maize and silage takes.
But Leeder says this year the maize yields have been in the order of 25 to 30 tonnes per hectare which he adds is big.
“It seems the stars have all been aligned this year and when you are running a biological system, things like this can happen,” he says.
Leeder says while maize yields have been really good, yields of surplus grass have also been exceptionally good.
“We have got silage for Africa here in the Bay of Plenty, so much so that contractors have even been offered grass for free by farmers so that they can clean up their paddocks,” he says.
Leeder says it augers well for the winter and spring but notes that seasons tend to equal themselves out and while there is a great surplus of conserved feed now, a harsh winter could change all that. He says with the tremendous grass growth, cows are heading into calving and mating in very good condition.
On his own farm where he runs about 500 cows, Leeder says the greatest challenge this season has been managing the very good grass growth. He says this makes for a potentially rewarding season and he’ll be a lot better off financially – especially if the payout is around the $8/kgMS mark.
