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Peach:

ReTain PGR Application on Peaches for Harvest Management and Fruit Quality:

Variety: 6 yr. old Redhaven
Objective: Evaluate ReTain PGR with an EUP (Experimental Use Permit) for efficacy
on Peaches.
ReTain is registered in the US for use on apples and pears. The benefits include harvest management
and improved fruit quality. The manufacturer is pursuing a label for similar harvest management uses
on stone fruits.

Cherries:

Dwarfing Cherry Rootstock / Cultivar Evaluations

Variety: 6 cultivars on 5 different rootstocks
Objective: Evaluate new and promising cultivars / rootstocks for their performance in the
Northeast.
Cherries are a highly valued commodity that can only show promise in our area if some of the their
problems are addressed. Two of these include the bacterial diseases of leaf spot and canker. A steady
regime of copper sprays along with no dormant pruning has allowed us to bring both of these diseases
better under control.

Begin 1stweek of September with Bordeaux mix and continue on a bi-weekly schedule into dormancy.
A total of 5 fall applications.

A single Bordeaux spray in the spring prior to bud swell, before switching to two applications of
Champ 2F (One at pink, and one at bloom).

Two applications of Champ 2F during the summer, one after the completion of harvest and one after
pruning is complete.

Only summer pruning (post-harvest) is done.

1999 Planting of the NE-183 Apple Evaluation Trial
Per acre trellis comparison
8.5' x 13' tree spacing (394 trees/a)
Conventional:
4" x 10' CCA poles = $6 pole at 99 poles/a =
Wood Anchors = 11 rows /a = 22 anchors/a
Cost of poles and professionally installing for proper stabilization =
3 strands 12.5 gauge wire =
1/2" x 10' EMT conduit = $1.59 pole at 394 poles/a =
Total
Alternative:
4' x 10' CCA poles =$6 pole at 33 poles/a =
2" x 1 1/2" x 10' Metal Poles =$4.12 pole at 88 poles/a =

$594

$466
$126
$626
$1812/a

$198
$363


1999 North Jersey Tree Fruit Annual Report

57