Four Star Culture Guide - 2019 - 72

LEUCANTHEMUM CONTINUED
TRIMMING/PINCHING
Do not pinch Leucanthemum after the plants have received their
cold treatment or during forcing. Pinching removes some of the
young flower buds, which can lead to either light flowering or
inconsistent flowering. A pinch two weeks after transplant can
and should be done if the customer wishes to grow and bulk
their own crop in the fall prior to vernalization.
GROWTH REGULATORS
A 5ppm Sumagic® (uniconazole) spray or B-Nine® (daminozide)
at 2,500ppm can be effective to control height.

PEST and DISEASE MANAGEMENT
Aphids, Caterpillars, Whiteflies, Four-lined Plant Bugs,
Leafhoppers, Thrips and Spider Mites are the most prevalent
insect pests associated with Leucanthemum. Scout and spray
preventively for Botrytis, as this is the most prevalent foliar
disease associated with Leucanthemum. Other foliar diseases
should also be scouted for to prevent outbreaks of Alternaria,
Erwinia and Pythium. Additionally, Rhodococcus can be a
problem on Leucanthemum and care should be taken to identify
and spray preventatively for it. Wash cutting implements often
while performing crop maintenance on Leucanthemum to
prevent the spread of foliar diseases.
OTHER TIPS
When growing larger containers, it is best to bulk them in the
summer/fall the year before they are to be sold.

Four Star Greenhouse I www.pwfourstar.com I 734-654-6420
72

The rates and chemicals listed are based on our southeast Michigan growing conditions, and are not recommended for nationwide application.
Please adjust the rates and spray applications to your location and facility.



http://www.pwfourstar.com

Four Star Culture Guide - 2019

Table of Contents for the Digital Edition of Four Star Culture Guide - 2019

Contents
Four Star Culture Guide - 2019 - Cover1
Four Star Culture Guide - 2019 - Contents
Four Star Culture Guide - 2019 - 1
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