Re: [Aroid-l] Spider Mites

**K* M* <k*@spatulacity.com>**

Michael is right, they supposedly don't do well if you raise the

humidity. I had little luck with that approach, however. If your friend

thinks they like Amorphs then he should get a Typhonium venosum and

stick it in the corner. They will all go to that corner!

Common wisdom with the two-spotted spider mite is to spray with 2 or 3

different miticides according to the label directions but *rotate* the

chemicals used. Spider mites develop immunity quickly because of their

short breeding cycle. I had reasonably good results on my Ty. venosums

last year when I rotated Kelthane and an Ortho product called "Systemic

Insect Killer" with active ingredients Acephate and Fenbutin-oxide (the

label says "Formerly Isotox" but I don't think Isotox had the same

ingredients). The Ortho product is VERY smelly! Ugh.

He might also try spraying those infested plants with Messenger a couple

of days after the miticide. At the very least it won't hurt them and it

may give them a boost.

-Ken

D. Christopher Rogers wrote:

Howdy,

Anyone have a good method for dealing with spider mites? The keep

popping up in my friend’s greenhouse. They really seem to like

Amorphophallus, Xanthosoma, Alocasia, and Colocasia, ignoring everything

else. He has been using neem oil, but it seems to kill off leaves. He

went to a weaker concentration, which knocks down the mites immediately

and saves the leaves, but even after spraying twice a day for two weeks,

they just pop right back up. They appear to be the two-spotted spider mite.

Thank you in advance,

Christopher

_______________________________________________
Aroid-l mailing list
Aroid-l@gizmoworks.com
http://www.gizmoworks.com/mailman/listinfo/aroid-l