PGR Toolbox - Reentry and Preharvest Intervals

Listed below are pesticides used on tree fruits. Not all materials listed here are suggested in the spray schedules.
PGR Toolbox - Reentry and Preharvest Intervals - Articles
PGR Toolbox - Reentry and Preharvest Intervals

Pesticides used at the rates and times suggested should be within the legal residue tolerance at harvest. Pomace made from apples or pears sprayed according to these suggestions may contain illegal residues if listed for animal feeds. Always check the label for the actual REI and PHI.

  • B Remove residue by brushing
  • BH Before harvest
  • BHP Before pit hardening (stone fruit)
  • D Dormant only
  • EC Early cover sprays
  • LC To late cover sprays
  • FB Full Bloom
  • 0-60 PHI
  • HG 1/2 inch green
  • PB Prebloom
  • LB To late bloom
  • PF To pedal fall
  • PH Postharvest
  • SC Second cover or 1/2 inch fruit diameter
  • SS To shuck split
  • NE Not established
  • --- No registration
  • SF To shuck fall
  • SD Soil drench or spray
Plant growth regulatorsREI (hrs)PHI (days)
Apple
PHI (days)
Pear
PHI (days)
Peach
PHI (days)
Nectarines
PHI (days)
Apricot
PHI (days)
Cherry
PHI (days)
Plum
Accel1228------------
Amid-Thin W48NENE----------
Apogee1245------------
Ethrel487--------7--
Exilis plus1286------------
Falgro4----00000
Fruitone L4822----------
MaxCel128686----------
Perlan4NE------------
PoMaxa4822----------
ProGibb 4%120--------7--
ProGibb 40%40--------7--
Promalin for fruit shape4NE------------
Promalin for branching4NE365365----365--
ProVide4NE------------
ReTain1277777--7
RiteSize12NE------------
SmartFresh24.5NE------------
Tre-Hold A-11212DD----------
Typy for fruit shape12NE------------
Typy for branching12NE365365----365--

Source: Penn State Tree Fruit Production Guide