Pest

Time of Season or Generation

Monitoring and Treatment Levels

White apple
leafhopper, Rose
leafhopper (July-
September),
Potato leafhopper
(July-September)

First generation WALH: PETAL
FALL, FIRST, SECOND COVER (last
of May, early June).

Second generation WALH: FIFTH,
SIXTH COVER (early to mid-August).
This includes various generations of
other listed leafhoppers.

0.5 leafhopper/leaf (WALH)

3 leafhoppers/leaf (total of all species)

1998 New Jersey Commercial Tree Fruit Production Guide

83