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WHAT IS THE DIFFERENCE BETWEEN ROSE BALLING AND BOTRYTIS

I HAVE MANY ROSES UNAFFECTED IN SAME BED BUT 4 PRINCESS DE MONACO HAVE ALWAYS BEEN AFFECTED, EVEN THOUGH THEY ARE SPREAD AMONGST OTHER ROSES – HUGE BLOOMS BUT THEY NEVER OPEN FULLY. ANY ADVICE WOULD BE APPRECIATED


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3 Comments To "WHAT IS THE DIFFERENCE BETWEEN ROSE BALLING AND BOTRYTIS"

#1 Comment By roseman On 11/23/2019 @ 10:32 am

Here is a link to an article I wrote on this topic for you: [1]

Botrytis causes the balling due to a fungus. Using a fungicide such as one called Mancozeb which is available at Amazon.com. Be advised that the mancozeb fungicide will leave a powdery looking yellowish residue on the foliage and buds as that is part of how it works.

#2 Comment By roseman On 11/23/2019 @ 10:35 am

Here is a link to an article I wrote on this subject for you: [1] The Botrytis is caused by a fungus and its appearance can be clearly seen. Treat it with a fungicide named Mancozeb. Be advised that the mancozeb will leave a yellowish powdery residue on the foliage and buds but that is part of how it works.

#3 Comment By GKH_Susan On 11/23/2019 @ 7:01 pm

Are your Princess rose stems closer together than your other roses? Lack of air circulation can promote rose balling.

Rose balling is triggered when rain soaks formed buds then a hot sun dries them causing the petals to stick together. A slime may form as well. The buds cannot open and just wither away.

Botrytis blight is a fungus that attacks roses with a similar result. A gray mold forms on the buds preventing them from opening. A fungicide can help remedy botrytis.

This article offers tips on preventing rose balling.

[1]


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