Spider mite - an organic solution?

Raymondo(Armidale, NSW)February 7, 2006

Some of my tomatoes are infested with spider mite. One entire bed and here and there in others. The part of the country I live in has had a major problem with them this year.

I've tried seaweed extract but to no avail. Anyone have ideas? I did a Google search for organic solutions and it seems pyrethrum spray or an insecticidal soap spray are the recommended ways to go. I'm a little loath to use these though as they kill indiscriminately.

Thank you for reporting this comment. Undo
Kimmsr(4a/5b-MI)

Is it fairly hot and dry there now? Spider mites are driven to drink more plant sap whne it is hot and dry and that acts as an aphrodisiac causing them to mate more producing more young. Increasing the humidity around the plants is one easy means of control, if that is possible. Insecticidal soaps will kill any insect it contacts but it must contact the target. Insecticidal soap has no residual action so it would be the next step up for me if increasing the humidity did not work or was not possible.

    Bookmark   February 7, 2006 at 6:23AM
Thank you for reporting this comment. Undo
creister(z7 TX)

Raymondo,

I battled them last August and they are very hard to get rid of. I used a combination of two different sprays. One is insecticidal soap, the other was seaweed + molasses + orange oil. It kept them reduced, and plants kept growing, but I never got rid of them completely. I also trimmed off leaves that seemed to have very heavy infestations. You can also order predatory mites online, but they are somewhat expensive. I've never tried the predatory mites, but have heard they work very well.

    Bookmark   February 7, 2006 at 3:04PM
Thank you for reporting this comment. Undo
dchall_san_antonio(8 San Antonio)

Did you spray seaweed every two weeks?

    Bookmark   February 8, 2006 at 6:05PM
Thank you for reporting this comment. Undo
dereckbc(7a TX)

If all the above fail, Pyrethrum or Rotenome.

    Bookmark   February 11, 2006 at 11:50PM
Thank you for reporting this comment. Undo
gardengal48

Increasing the humidity by daily misting or spraying of the plants (early enough so the foliage will dry before nightfall and cooler temps) will certainly help. I'd also recommend Neem oil, which is a registered organic miticide, but like the insecticidal soap (which I have found to be of NO use in controlling spider mites), it is not target-specific and will kill any soft bodied insect.

    Bookmark   February 12, 2006 at 9:01AM
Thank you for reporting this comment. Undo
gardenlen(s/e qld aust)

g'day raymondo,

the only way i know of is to increase the humidity also. they do like it dry and guess you are like most of the rest of us having a hot dry summer. might do to water in the arvo' so the leaves stay damp a bit more and the humidity stays around?

len

    Bookmark   February 12, 2006 at 3:50PM
Sign Up to comment
More Discussions
Safeness of gavanized hardware cloth in containers?
I now have 4 Behlen food-grade stock tanks for raised...
catherinet
Companion Planting Newbie Needs Help
Hi everyone! This is my first post here and I'm needing...
flutterby64
Clear differences between organic and non-organic food, study fin
"Clear differences between organic and non-organic...
henry_kuska
organic way to be rid of rain barrel squigglies
I have squigglies in my rain barrels, probably they...
applemum
Flowers and neonictinoids
I am in the Burbank California area. I have a small...
ltlredwagon
Sponsored Products
Biba Screen
Lightology
Spider Mica Wall Sconce by WPT Design
$276.25 | Lumens
Kim Seybert Set of Four Seersucker Napkins
$72.00 | FRONTGATE
Designer Drains Designer Drains - Spider Web Oatey Drain Rough
Hudson Reed
Glomar Flush Mounts 1-Light Outdoor Textured Black Ceiling Spider Cage Fixture
$49.99 | Home Depot
Arteriors Home - Elden Floor Lamp - 79988-101
Great Furniture Deal
Ursula Brass Spider Lamp
ModernistLighting.com
Living Room More Feet Spider Pendant Lighting
ParrotUncle
© 2015 Houzz Inc. Houzz® The new way to design your home™