This is a public-interest archive. Personal data is pseudonymized and retained under GDPR Article 89.

Re: Growth on dog roses

They are signs of infestation by gall wasps. If you look closely, a small
whitish larva can be found inside. If they are numerous, they can weaken the
plant. It is best to prune off and destroy the canes with the infected foliage.
Colette
You can find a leaf gall picture at: http://www.jps.net/rosebug/1clgalls.jpg 
> 
> Anyone know what the orange/brown match-head size growths with spiny
> looking things are, that grow on the leaves of our common wild dog
> roses ?  The roses don't look sick. They are hollowish when you open
> them, so I think they are vegetative in nature.
> 
> Sincerely,
> Carleen Rosenlund of Rainier, Oregon -zone 6
> Sweetbriar - Keeper of Sheep & Old Roses
>
Other Mailing lists | Author Index | Date Index | Subject Index | Thread Index