Colorado Potato Beetle and Potato Leafhopper Control with Foliar Sprays And Soil Applied Systematics, 1981

Cut Norchip potatoes (size B) with 20 cm spacing on 1.5 m centers were machine-planted May 18. Treatment plots were single 7.6 m long rows replicated 5 times in a randomized complete block. Between each treatment row was a border row which received granular Temik (3.0 lbs ai/acre) in-furrow at planting. The border rows helped prevent movement of beetles between treatments. A 4.6 m alley separated the replicates. The soil type was silt loam with O.M. 2,3% and pH 6.5. The herbicides Eptam 7EC (4.0 lb ai/acre) and Sencor 50WP (1 lb ai/acre) were applied pre-emergence and post-emergence, respectively.