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Irrigation Effects, 1 st Trial Vs. Peachtree Borer

Irrigation Effects, 1 st Trial Vs. Peachtree Borer. Treatments: n o irrigation, Irrigation (3X per wk over 2 wks ), Barricade, chlorpyrifos ( Lorsban ) Figure 1. Lack of irrigation = fail With irrig – suppression Barricade trt = L orsban.

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Irrigation Effects, 1 st Trial Vs. Peachtree Borer

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  1. Irrigation Effects, 1stTrialVs. Peachtree Borer • Treatments: no irrigation, Irrigation (3X per wk over 2 wks), Barricade, chlorpyrifos (Lorsban) Figure 1 Lack of irrigation = fail With irrig – suppression Barricade trt = Lorsban

  2. Effect of Application Method, 1stTrialVs. Peachtree borer • Treatments: commercial nematodes with boom sprayer, handgun, trunk sprayer, non-treated control. In vivo nematodes with watering can, chlorpyrifos(pos control); E-nema with handgun • Apply in fall, assess PTB infestation in spring Figure 2 • 7 trees per rep • 3 reps per treatment • High variation – no sig • Treatment differences

  3. Results of 1st Trial • After 1 h all treatments failed • Barricade protected nematodes in single spray up to 30 min Figure 3

  4. Field Trial Results vs. Lesser Peachtree borer: • Nematodes + Barricade at full and 2% rates provided control equal to Nufos (Lorsban) Figure 4

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