Mexican Bean Beetle Control in Snap Beans, 1982

Earliwax snap beans were planted in double row plots, 90 ft in length, on Jun 7. Each plot was buffered on either side by untreated guard rows. The distance between rows was 3 ft. The treatments were arranged in a randomized complete block design with 4 replications. Spray treatments were applied on Jul 19 and Aug 3. All spray treatments were mixed in 10 gal of water and applied with a custom built row crop sprayer. Each of the center 2 rows was covered by 3 drop nozzles delivering 50 gal/A at 90 psi. The soil type was a Matapeake silt loam. Insect counts were made on Aug 6 by counting the number of Mexican bean beetle larvae and adults/20 ft of row.