In very dry conditions: Threshold tables for lygus indicate that if canola is $12 per bushel and spray costs $8 per acre, the threshold at the early pod stage is 5 lygus adults or late instar nymphs per 10 sweeps (0.5 per sweep). In moist and high-yield conditions: The economic threshold is quite a bit higher. At early pod stage,…
Lygus bugs: Thresholds and scouting tips
July 5, 2018