Experiences With Tarnished Plant Bugs in the Mississippi Delta Angus Catchot, J.F. Smith, and J. Gore Mississippi State University 2007 Beltwide Cotton Conference
2007 Mississippi Cotton Insect Losses Bales Lost
2007 Mississippi Cotton Insect Losses (Delta Region-Bt) Bales Lost
2007 Mississippi Cotton Insect Losses (Hill Region-Bt) Bales Lost
Tarnished Plant Bug Numbers per 100 Sweeps and Square Retention for First 3 Weeks of Squaring in Washington County, MS 2007 Denotes TPB application applied TPB Threshold
U.S. Cotton Belt Lygus spp. Control Costs US average - $
Management Strategies for Tarnished Plant Bug Host Plant Manipulation Minimize “edge effects” Variety Selection Correct Nozzle Selection Rotate Chemistry Shorten Spray Intervals During High Pressure Sampling Procedures
Host Plant Manipulation Area-wide Plant Bug Management One herbicide application from late-Feb. through March.
Host Plant Manipulation No. Plant Bug Applications Average
Minimize Edge Effects
Variety Selection Plant Bugs in DP 444 vs. 555 Nymph per 6 ft.
Variety Selection Plant Bugs per 25 Sweeps
Variety Selection Percent Square Retention
Nozzle Selection
Rotate Chemistry Number/6 ft. 5 days 11 days
Shorten Spray Intervals During High Pressure Percent Nymphs/6 ft. Pre-treatment 4 DAT with Orthene (0.5 lb)
Shorten Spray Intervals During High Pressure abc lbs seed cotton/acre Week 1 = 35.6/100 Sweeps Week 2 = 37/100 Sweeps Week 3 = 49.6/100 Sweeps Week 4 = 17/100 Sweeps Week 1 = 29.6/100 Sweeps Week 2 = 32.5/100 Sweeps Week 3 = 45.6/100 Sweeps Week 4 = 19.5/100 Sweeps Week 1 = 29/100 Sweeps Week 2 = 32.6/100 Sweeps Week 3 = 52.6/100 Sweeps Week 4 = 47.6/100 Sweeps *Underlined indicates plots were sprayed*
*Week four square retention counts were made one week after final prebloom spray at first bloom* % Square Retention Shorten Spray Intervals During High Pressure
Sampling Procedures
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