My next problem rose is my Blanc Quatre de Saisons. It's just now forming it's little clusters of buds and I'm noticing some that are brown and shriveled. Last year I had this problem too for the first time. I'm thinking it might be thrips? If it is, how do I get rid of them????
@emsgrdn, I was wondering if this was thrips too, two unknown hybrid teas I inherited have blooms opening pre-damaged, I think:
On the second photo, the bud on the right, top right of the bud, seems to have holes pre-drilled, which makes me think there is some tiny insect living/feeding inside...
Mountainous Northern Catalunya, Spain. Hot summers, cold winters.
...just replying to @emsgrdn.. re my garden, thank you... and as for your problems with the roses... the leaf crinkling, rolling, can be characteristic of some roses, it may not be a problem as such.. I do know that rose gardeners in U.S. recommend Espoma Rose Tone... so you might like to try that..
It's sometimes said that the best fungicide, insecticide for roses is rainwater.. at the roots, not on the foliage... they like lots of it, - a root drenching - and it does them the power of good and better able to resist problems.. whenever I see an issue on a rose, I pour down a 10 ltr can of collected rainwater [if I have any]... with some liquid tomato fertilizer and/or liquid seaweed extract, depends what I have... but this may not be appropriate for you ...
@Nollie just to say, I've noticed a few leaves of Wild Rover with a touch of black spot.. quite early in the season... it is a little prone, so something to watch out for.. I just pick them off,.. maybe half a dozen small leaves on an 8 foot tall plant, so nothing to worry about,...and in your drier [?] climate you might not get any?..
Thanks @Marlorena, I am sure it probably will get blackspot, most of the others have started getting it so it’s in good company! My climate is drier only in winter, late spring and summer rains, heat and humidity create the ideal conditions for BS, unfortunately!
You don’t happen to know what’s causing the drilling in my hybrid teas (posted earlier) by any chance? Not that I’m that bothered, I’m not particularly fond of either of them, but curious to know if it is thrips or something else in case it starts affecting the ones I do care about!
Mountainous Northern Catalunya, Spain. Hot summers, cold winters.
@Nollie .. I wouldn't know exactly... but I would guess either sawfly larvae which look like little caterpillars or curculio weevils... I get these in my garden.. link below.. http://www.coleoptera.org.uk/family/curculionidae
Hi, thanks @Eglantyne and @Marlorena. I can’t see any little caterpillars or tiny beetles on them, but will look up all your suggestions. Whatever is causing the damage seems to be invisible or very good at hiding... except the blooms are full of these, with their heads buried in the stamens. I think they are too large to have caused the actual damage and am hoping they are friendly pollinators or ideally, munching the bud munchers... so if anyone has any idea what these are that might be another clue...
Mountainous Northern Catalunya, Spain. Hot summers, cold winters.
Oh dear, my knowledge of insect life is abysmal, there I was thinking these were the good guys, thank you for putting me to rights @Eglantyne, yes they are the WSRB - holes in buds, leaves and flowers...tick, tick, tick. At least they are easy to spot and dispatch in soapy water!
Apart from the holes and petal shabbiness, the darker pink rose has gone all raspberry ripple, which is an interesting but not especially attractive look:
Mountainous Northern Catalunya, Spain. Hot summers, cold winters.
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On the second photo, the bud on the right, top right of the bud, seems to have holes pre-drilled, which makes me think there is some tiny insect living/feeding inside...
It's sometimes said that the best fungicide, insecticide for roses is rainwater.. at the roots, not on the foliage... they like lots of it, - a root drenching - and it does them the power of good and better able to resist problems.. whenever I see an issue on a rose, I pour down a 10 ltr can of collected rainwater [if I have any]... with some liquid tomato fertilizer and/or liquid seaweed extract, depends what I have... but this may not be appropriate for you ...
You don’t happen to know what’s causing the drilling in my hybrid teas (posted earlier) by any chance? Not that I’m that bothered, I’m not particularly fond of either of them, but curious to know if it is thrips or something else in case it starts affecting the ones I do care about!
http://www.coleoptera.org.uk/family/curculionidae
Apart from the holes and petal shabbiness, the darker pink rose has gone all raspberry ripple, which is an interesting but not especially attractive look: