[Grow Tech]

Originally Posted by daheadies

Are broad mites and russet mites the same??

Nope, they are not
Hemp Russet Mite - Aculops cannabicola
Broad Mites= Tarsononemid mites

[daheadies]

Originally Posted by Grow Tech

Nope, they are not
Hemp Russet Mite - Aculops cannabicola
Broad Mites= Tarsononemid mites

Thank you! do they do the same damage??? What happened to my plants 1 year ago is exactly as photographed in this thread... However, when I went to the local shop and described my problem, they said its russet mites, and that its going around town...

Does russet damage look the same as broad???

[the gnome]

does anyone know if will lady bugs eat broad mites

[the gnome]

hey daheadies,
herE's a pic of what russet mite damage looks like.
its not like braod mite damage but somewhat similar, russet's leave a sorta bronzeish dust as they do the dirty deed

[pinecone]

Originally Posted by the gnome

hey daheadies,
her's a pic of what russet mite damage looks like.

Are there any mites on that picture? If so would you please indicate their location? Thanks.

Pine

[Maj.Cottonmouth]

I think is a picture of the aftermath, look at the stem and the bronze material. If they are like Broad mites in size then it is very very difficult to see them without magnification.

[the gnome]

Originally Posted by pinecone

Are there any mites on that picture? If so would you please indicate their location? Thanks.

Pine

they are all over it, especially on the stem
they are very tiny,
much smaller than broads i believe
and broads are tiny.. 1/150th of an inch

heres a pic of russet mites on the stem




another

[the gnome]

I found this, its cheap and its on a very low order of toxicity
kills mites and their eggs... Volck oil spray
$6 for a pint bottle and makes quite a bit from that.
when i 1st started growing and had to deal with some mites an old hand recommended it.
its been used for years in the nursing/orchard industry.
we'll see what it does to the broads
avid is on the way.

so thats whats instore for dem broads till the avid gets here.
i'll let everyone know how the volck oil spray pans out.

well I doused the plants with volck oil 2 days ago and I still have BMs
volck oil didn't seem to phase them at all

[Grow Tech]

Originally Posted by the gnome

well I doused the plants with volck oil 2 days ago and I still have BMs
volck oil didn't seem to phase them at all

Sorry it didn't work. Thanks for posting you findings though

[Maj.Cottonmouth]

Here is what I found for tomato russet mites. Best of luck man, they sound like a real pain but can be dealt with.

https://www.extento.hawaii.edu/kbase/...e/a_lycope.htm

MANAGEMENT

Non-Chemical Control

There are a few of predators that feed on the tomato russet mite, but most of them do not seem feasible for a biological control program. Bailey and Keifer (1943) observed that a predatory mite, Seiulus sp., was effective in controlling tomato russet mite on tomatoes grown in home gardens. However, this predatory mite was not effective as a commercial biological control agent.

There are other predatory mites which feed on tomato russet mite. Typhlodromus occidentalis (Nesbitt), Pronematus ubiquitis (McGregor), and Lasioseius sp. were predatory mites noted by Rice (1961). The Zambia Department of Agriculture (1977) implied that the predatory mite, Phytoseiulus persimilis (Athias-Henriot), may have controlled tomato russet mite. De Moraes and Lima (1983) observed that Euseius concordis (Chant) will feed on tomato russet mite. They indicated that its effectiveness as a predator of the tomato russet mite would be limited by the presence of Tetranychus evansi (Baker and Pritchard). The problem is with the webbing of T. evansi. It hinders the activity of E. concordis. Another problem is the presence of tomato russet mite with T. evansi for most of the year.

There seems to be some potential for the use of Homeopronematus anconai (Baker) as a biological control agent. (Perring and Farrar, 1986). Studies indicate that this predator is effective in controlling tomato russet mite in the laboratory.

Basic crop sanitation helps in the control of the tomato russet mite (Kay, 1986). Weed hosts should be eliminated within and around the crop. Crop residues should also be destroyed. Keeping the area around the crop free of tomato russet mite hosts helps to reduce the sources of infestation.

Chemical Control

The crop should be monitored for any plant symptoms indicative of the presence of the tomato russet mite. When tomato russet mites are found, control measures should be taken early so that serious damage to the crop does not occur. Also, good pesticide spraying technique is important for complete coverage of all parts of the plant. The lower part of the stem and the undersides of the leaves should not be forgotten.

Sulfur is usually recommended for the control of mites. However, in northern Queensland, a study by Kay and Shepherd (1988) found sulfur to be ineffective. Their 7 trial study was conducted from 1982 to 1985 on tomatoes. They found that the most effective acaricides against an established infestation of tomato russet mite were dicofol (Kelthane), cyhexatin (Plictran), azocyclotin (Peropal), sulprofos (Bolstar), and monocrotophos (Azodrin). Fenbutatin oxide (Vendex) was moderately effective. Sulfur, demeten-S-methyl (Metasytox-R), dimethoate, endosulfan, methamidophos (Monitor), and propargite (Omite) were ineffective.

Kay and Shepherd (1988) also found that dicofol and cyhexatin were the most effective treatments to prevent a damaging infestation from developing. Sulprofos and monocrotophos were also effective. Sulfur was ineffective. Three-weekly or monthly applications were found to be insufficient. A weekly or fortnightly application schedule was necessary for prevention.

Royalty and Perring (1987) evaluated five acaricides on tomato russet mite and a tydeid mite predator, Homeopronematus anconai. For tomato russet mite, avermectin B1 (Avid, Agrimer) was the most toxic, followed by dicofol, cyhexatin, sulfur, and thuringiensin. For H. anconai, dicofol was the most toxic followed by avermectin B1, sulfur, cyhexatin, and thuringienson. According to their study, selective doses of Avermectin B1 could provide good control of tomato russet mite while conserving a predator of the tomato russet mite, H. anconai.

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https://www.ipm.ucdavis.edu/PMG/r783400111.html

MANAGEMENT

Monitor and treat for these mites if damage is occurring.

Organically Acceptable Methods
Mined sulfur dust or sprays are acceptable on organically certified produce.

Monitoring and Treatment Decisions
Look for bronzing on lower leaves and stems, then check damaged leaves and the green leaves immediately above them for mites. Damage is typically first observed when green fruit reaches 1 inch (5 cm); rarely is it first observed after more than 25% of the fruit are ripe. Determine the extent of each infested area in the field by examining leaves and stems for bronzing, and mark the boundaries of the infested areas. Check these areas again in 2 or 3 days to see if they are increasing in size. Immediate treatment is necessary when damage symptoms begin to spread.

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https://www.tomatoville.com/showthread.php?t=15461

Well, the dreaded microscopic insect has reared its ugly little head again in the San Francisco Bay Area, and it seems to be running rampant. Signs of infestation are yellowing, browning, wilting and eventual death of the plant. All from something you can't see!

Although Holly suggested sulfur to control the mite, I've found that you may want to take faster action. A product with a miticide in it is the ticket. Organically speaking, several insectides help with mites. The one I like is called Azatrol and it's available at Mt. Feed & Farm in Ben Lomond or at some hydroponic stores. Call around to find out what sort of pesticides your local nurseries may have that control mites.