Software
Houzz Logo Print
jeanz5il

Rose Bug Problems 101

18 years ago

Comments (7)

  • 18 years ago

    Here are the pictures again. Sorry
    {{gwi:292515}}


    {{gwi:292516}}


    {{gwi:292517}}


    {{gwi:292518}}


    {{gwi:292519}}


    {{gwi:292520}}


    {{gwi:292521}}

  • 18 years ago

    I'm going to number them, calling "#1" the top picture of the stack and "#7" the bottom one.

    What I see doesn't look to me like rose slug damage. In my experience rose slugs usually do a number on the leaves more than anything else.

    I think #2, 5, & 6 display evidence of fungal infections. The stray white filaments around the bud in #6 are called "hyphae" and are part of the fungus tissue. I'm not sure of the fungus species, although it could be gray mold (Botrytis cinerea).

    I thnk the damage in #7 is physical scarring, the sort of thing that happens when one stem rubs too vigorously &/or too often against another stem.

    I'm not certain what the damage in #1 is. Having said that, I think the opening bud (with its brown petal edges) looks like it has thrips feeding damage. If you look very carefully you'll probably see very, very small, thin insects walking around on the petals of that bud, but you might have to pull the bud open a little to get a better view. Thrips are usually only a couple of millimeters long and probably less than half a millimeter wide.

  • 18 years ago

    York rose looks to be right on all fronts. The first picture looks like classic thrips damage. Rose slugs in most cases strip the leaves form underneath leaving the skeleton remnants.

    Lance

  • 18 years ago

    Need help with ID of this prehistoric looking bug found on my rose this morning.

    The past couple of days I noticed new leaf tips looking like they were being sucked dry. I inspected every inch of this bush and found nothing. Until this morning. I thought some debris from a tree had fallen on the one of my rose leaves so I went to brush it off and it didn't move. Upon closer inspection I noticed antennae and feet. I picked it off as it was stuck to the leaf, and it feels like a hard shell. I thought maybe something had shed it's skin. Until I saw the little legs move. This is the best picture I could get of it. It is maybe an eighth of an inch. I've never seen anything like it. But it reminds me of a prehistoric fossil.

    I believe this is what has caused the damage to my leaves. Time will tell if this is what caused it. Or is someone recognizes the problem with my leaves and I am dooming a innocent bug please let me know. I have not killed it yet just put it in a jar.

    I would appreciate any help with the ID of this bug. As I said it is small and I mistook it for a piece of debris. Going to have to invest in a magnifying glass just to inspect my roses. lol

    {{gwi:292522}}

    Here's the damage
    {{gwi:292361}}

  • 18 years ago

    I'm going to have to disappoint you here. The insect is a leaf beetle. More specifically, it's in the "tortoise beetle" subfamily (Cassidinae) of the leaf beetle family (Chrysomelidae). (Chrysomelidae is an unusually large beetle family, so it has a number of subfamilies within it. The tortoise beetles are one of those subfamilies. Another famous subfamily is the flea beetles.)

    All the leaf beetles have chewing mouthparts, not sucking ones, so they don't cause leaves to crisp up like that when they feed. Instead they chew holes in the leaves, like this. (I doubt the link is your guy, but it shows you what the feeding damage looks like.)

    To be honest, I'm not even sure the leaf damage is caused by an animal or a pathogen. Is it possible the leaves are getting scorched by some physical cause?

  • 18 years ago

    Hmmmm!!!!! now I'm really confused. I haven't used any chemicals for a month and I only water at night. I've been inspecting each leaf of each bush daily for bugs and squishing what I find. I thought for sure this year I'd have happy healthy roses and now this. My closest neighbor is 200 yards away so I don't think any chemicals they would use would cause this. Plus it is only on my Veterans Honor Rose Bush.

    Thanks for the ID of the beetle York Rose. Now I know where the holes were coming from. I was blaming the holes on an inch worm I found on the bush.

  • 18 years ago

    Hmmmm!!!!! now I'm really confused.

    Welcome to the natural world....... ;-)