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06-21-2022, 01:00 PM
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Administrator
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Join Date: Feb 2011
Zone: 6a
Location: Kansas
Posts: 5,164
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Spider Mites
A link to an article from Purdue about spider mites.
Spider Mites on Ornamentals
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08-28-2022, 10:08 AM
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Administrator
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Join Date: Feb 2011
Zone: 6a
Location: Kansas
Posts: 5,164
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Another spider mite article, courtesy of Isurus79...
https://extension.msstate.edu/sites/...007/bw0507.pdf
Along with a recommendation from him when looking for a bigger gun for spider mites: "Bayer 3 in 1 is probably the easiest to find pesticide containing imidacloprid, which is super effective against mites."
The struggle is real with these Catasetum spider mite magnets.
Last edited by WaterWitchin; 08-28-2022 at 10:16 AM..
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Post Thanks / Like - 2 Likes
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08-28-2022, 01:43 PM
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Senior Member
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Join Date: Jan 2022
Zone: 8b
Location: Olympia, WA
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The article from Isurus79 and other articles, including the one I included below (in the application tips section), state that imidacloprid treatment can cause mite populations to increase, often at a very fast rate. This is especially frequent with the Two Spotted Spider Mite, but has also been observed in other mite species. The Bayer 3 in 1 has another ingredient that targets mites. Imidacloprid by itself can exacerbate a mite problem!
Pesticide Information about imidacloprid - UC IPM
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08-28-2022, 02:02 PM
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Senior Member
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Join Date: Jun 2015
Zone: 9b
Location: Phoenix AZ - Lower Sonoran Desert
Posts: 18,483
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Mites rapidly become resistant to pesticides. Effective products need to be rotated frequently if used at all. Mechanical means of control do not lose effectiveness with time.
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Post Thanks / Like - 1 Likes
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08-28-2022, 02:33 PM
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Super Moderator
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Join Date: Jun 2008
Zone: 10a
Location: Coastal southern California, USA
Posts: 13,648
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Bifenthrin is a miticide.
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08-27-2024, 07:27 AM
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Member
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Join Date: May 2023
Zone: 7b
Location: Memphis, TN
Posts: 75
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Bayer 3 in 1 took out my mites instantly. Had infestation in greenhouse, all orchids affected along with many other tropicals. Snake plant had it the worst. I must say after just one treatment I do not even see any sign of them over a month now. I really like Bayer products for all aspects of gardening.
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08-27-2024, 12:23 PM
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Senior Member
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Join Date: Apr 2022
Zone: 10b
Location: Southern California
Posts: 357
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I only have 3 catasetums so it'd easy for me to manage the best on them. I find weekly hosing down the leaf or wiping it does the job better than insecticides
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08-27-2024, 11:59 PM
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Senior Member
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Join Date: Jul 2013
Location: Colorado
Age: 44
Posts: 2,582
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I've currently got a mite infestation and I don't think they are spider mites. There is no webbing at all, they are tiny and red/orange. A little research has turned up the existance of flat mites or false spider mites, some even specifically called orchid mites. I bought 2,000 of the predatory mite Neoseiulus californicus from Arbico which I just applied today, fingers crossed they will eat them, whatever they are.
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08-28-2024, 07:06 AM
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Member
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Join Date: May 2023
Zone: 7b
Location: Memphis, TN
Posts: 75
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Just curious where are you releasing them. In a greenhouse, outside, inside? Definitely looks interesting these biological controls, although a little pricey. I guess if they work the price isn't bad at all. I am intrigued about the beneficial fungi and bacteria.
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08-28-2024, 01:06 PM
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Senior Member
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Join Date: Jan 2022
Zone: 8b
Location: Olympia, WA
Posts: 907
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FYI: predatory insects aren’t sold intending to be a complete cure (regardless of what the seller says). They’re a management strategy that, included in an IPM program, can keep pest levels below the economically-damaging threshold. I’ve both seen and used other beneficial insects in greenhouses and they’re typically applied monthly throughout the season.
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