Internet Bonsai Club
Would you like to react to this message? Create an account in a few clicks or log in to continue.

Trident issue

5 posters

Go down

Trident issue Empty Trident issue

Post  John Quinn Sun Mar 11, 2012 10:42 pm

I have had this mature Trident maple for a few years. Portions of several branches have not survived the winter, which was very mild with few days below freezing. There are a number of small (approx. 1.0 mm length) white 'things' on the branches. On close inspection they almost look like larvae, but even with magnification there are no features distinguishable. Nothing is moving and they fall off when I pick at them with a 1 mm screwdriver. I did spray with Immunox Plus the other day when I saw them. Thanks for looking and any help with identification.
Trident issue Triden11

_________________
"Eschew obfuscation"
John Quinn
John Quinn
Member


Back to top Go down

Trident issue Empty Re: Trident issue

Post  drgonzo Sun Mar 11, 2012 11:50 pm

Scale? I've seen scale on Beech that looks similar. Would also explain the weakening of the branch.
-Jay
drgonzo
drgonzo
Member


Back to top Go down

Trident issue Empty Re: Trident issue

Post  Kev Bailey Mon Mar 12, 2012 10:55 pm

Hmm, not like any scale I've seen. Hope that Nina or someone else with experience of similar can step in....

_________________
“It is not the strongest of the species that survives, nor the most intelligent. It is the one that is the most adaptable to change.” - Charles Darwin.
Kev Bailey
Kev Bailey
Admin


Back to top Go down

Trident issue Empty Re: Trident issue

Post  drgonzo Mon Mar 12, 2012 11:21 pm

Look up cottony maple scale,

take a look also at this from the Delaware co-op extension. Looks fairly similar. Scale on broad leaf deciduous trees often looks very different from what we normally think of as scale.

http://kentcoopextension.blogspot.com/2009/04/landscape-scale-insects-japanese-maple.html

-Jay
drgonzo
drgonzo
Member


Back to top Go down

Trident issue Empty Re: Trident issue

Post  John Quinn Tue Mar 13, 2012 12:33 am

Jay, a few references I have found following your suggestion support your tentative ID. Pictures and quoted sizes are very similar.
Japanese Maple scale, not the same as Cottony Maple scale.
Lopholeucaspis japonica is the name. Thanks much. Cool

_________________
"Eschew obfuscation"
John Quinn
John Quinn
Member


Back to top Go down

Trident issue Empty Re: Trident issue

Post  Ryan Tue Mar 13, 2012 6:53 pm

Thanks for posting this John, I just found my tree has this as well Evil or Very Mad

Ryan
Member


Back to top Go down

Trident issue Empty Re: Trident issue

Post  marcus watts Sat Mar 17, 2012 9:42 am

While I dont over use chemicals of any kind in the garden I must admit to a couple of spray applications of insecticide to all my trees each year now. Even with this i do see a few aphids on new maple growth and under beech leaves, plus those little catapillars that roll up the new leaves of the satsuki ! I think routine spray applications stop pest populations reaching a proportion that can weaken or kill branches or even whole trees.

Good id too. I'd remove the infected bits and spray surrounding trees if you didn't last time as there may be others tucked away on other trees.

cheers Marcuus
marcus watts
marcus watts
Member


Back to top Go down

Trident issue Empty Re: Trident issue

Post  Sponsored content


Sponsored content


Back to top Go down

Back to top

- Similar topics

 
Permissions in this forum:
You cannot reply to topics in this forum