Tar spot requires seven hours of wetness on a corn leaf to take hold
by Bob Reid, Ontario Farmer from on (#6R9HQ)
ARVA - Tar spot can be a big black hole for potential corn yields, in the neighbourhood of 60 bushels per acre. Read MoreARVA - Tar spot can be a big black hole for potential corn yields, in the neighbourhood of 60 bushels per acre. Read More