Pear at Delayed-dormant
See General Recommendations for guidelines on table use. Read all product labels carefully.
Apply before new growth is exposed to minimize spray injury.
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Pear psylla: Pyrethroid resistance is present in many areas and may severely reduce efficacy of esfenvalerate. Note: Insect growth regulators Dimilin and Esteem are most effective when applied prior to significant egg deposition. See label.
sulfur, dry flowable: Do not apply to Anjou pears.
Lorsban Advanced: Do not make more than one application of chlorpyrifos per year.
petroleum oil- dormant: Use no more than 5 gals. oil per acre in concentrate sprays. In areas where pears are susceptible to oil injury, reduce dosage so that no more than 5 gals. per acre are applied during the prebloom period. If scale is a problem, use a dilute spray. Use handgun for hard-to-cover problem areas.
Surround WP: Apply two to three applications between dormant/delayed dormant and first bloom. Coverage of green tissue is important; apply every 2-3 weeks or as needed to cover new tree growth.