Mount Vernon Northwestern Washington Research and Extension Center

Vegetable Research and Extension

Photo collage of watermelon, dry beans, and tractor

Intercropping in Carrots for Rust Fly Control

Table 1

Carol Miles, Ph.D.,WSU Extension, Leslie Zenz, Research Assistant, Betsie DeWreede, Owner, Independence Valley Farm, and Julie Puhich, Owner, Common Ground CSA

 

Table 1. Weight (lbs) at harvest of marketable (undamaged), damaged but marketable, and non-marketable carrots due to carrot rust fly damage at three harvest dates (September 27, October 4, and October 21) in Rochester, Washington, in 1995.

Weight (lbs)
Treatment Marketable Damaged Marketable Non-Marketable
Harvest 1
Without intercrop		 15.47 3.19 13.97
With intercrop 16.84 4.09 6.6
Significance NS NS **
Harvest 2
Without intercrop		 12.75 5.63 14.38
With intercrop 13.09 5.59 7.91
Significance NS NS NS
Harvest 3
Without intercrop		 2.28 2.5 13.59
With intercrop 4.47 4.88 11.00
Significance NS ** NS
NS Not significant; ** Significant at the 0.05 probability level.

image of arrow Carrot Rust-Fly: Experimental Procedure

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