George Hamilton conducted an experiment to compare spray coverage on mature sweet corn plants using two different sprayers. He sprayed an 18-row block and a 16-row block using a Jacto cannon sprayer, passing the sprayer on one or both sides of the blocks. He also sprayed a 12-row block using a Durand-Wayland air blast sprayer, again passing the sprayer on one or both sides. Water sensitive paper was clipped to corn silks to assess coverage from the different sprayer setups.

1. George Hamilton – UNH, 2013
“I used water sensitive water to compare
coverage when spraying mature sweet
corn plants. I sprayed an 18 row, and a 16
row bock using a Jacto cannon sprayer
and a 12 row block using a Durand-
Wayland air blast sprayer.”

2. Water Sensitive Paper
clipped to corn silks

3. Jacto Cannon Sprayer

4. Jacto Cannon Sprayer
Top series: sprayer passed on both sides of 18 row block
Bottom series: sprayer passed on one side of 18 row block

5. Jacto Cannon Sprayer - passed on both sides of 16 row block

6. Durand-Wayland
Airblast Sprayer

7. Durand-Wayland Airblast Sprayer
Top series: sprayer passed one side of 12 row block
Bottom series: sprayer passed on both sides of 12 row block

8. Durand-Wayland Airblast Sprayer
Sprayer passed both sides of 12 row block