Are All Crop Dusters Yellow?

Simple answer no they come in various color's. The yellow ones are more favorable as they are called Air Tractor's and suited better for crop dusting work.

What color are crop duster planes?

He flies an Air Tractor 301A that, like most agricultural planes, is bright yellow. The color makes the low-flying planes visible to the higher-flying aircraft overhead and, “it's easy to see in the crops after a crash,” Wenzel joked.

What's the life expectancy of a crop duster?

Crop-dusting, a job that is so much a part of Americana, is graying. The average pilot is about 60 years old, and more than three-fourths of operators have 16 to 70 years of experience, according to a survey by the Environmental Protection Agency.