I have a memory that it was maples they baited with initially but that may be erroneous.
It's all in the link Mike
"Our first problem was choice of bait, it needed to be cheap as Mike did not want to part with the Rolls and I thought it best to keep feeding the family, I did not want them to get all “uppity†at a crucial time, so we looked at Maize and we looked at Maple Peas, both would be easy to prepare in quantity and both were cheap, but of the two Maize would be a bit obvious to other close season wanderers, on the other hand Maple Peas would blend in and remain un-noticed, even if dropped quite close in so we opted for Maple Peas.
We knew we would need to start well before the start of the season, we were trying to “condition†the fish to feed in or at the very least visit our chosen area, this would not be an over night task, but we did need the water to be warm enough for the fish to be cruising about, so the start date was set for mid April.
Our plan was simple, we needed to place a Maple Pea in every square yard of the bottom from one side of the river to the other, this would be done by catapult, mainly firing the Maples high into the air to get maximum spread and we started with an area of approximately 200 yds of bank space.
So every two days we would bait this area, I would do a Tuesday, Mike would do Thursday and I would do Saturday, Mike would follow on Monday and would do Wednesday and so on.
I suspect seeing a chap in a three piece suit with a bucket, catapulting something all over the place made the odd boat owner scratch his head, but we kept it up, come rain or shine, every other evening.
We wanted the fish to see bait all the time, we wanted them confident and un-afraid, to accept that if they swam a few feet they would see a Maple, in fact Maples would be as common as pebble and twigs on the bottom!"
Stephen