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Registered: 02/24/03
Posts: 12
Last seen: 11 years, 2 months
gnat control
    #1517525 - 05/03/03 02:14 PM (13 years, 11 months ago)

Has anybody used Dimilin for gnat control. It looks like you can purchase it now for fish medicine. This is the stuff the commercial farmers are using.

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Registered: 01/21/02
Posts: 1,996
Loc: A little North of Paradis...
Re: gnat control [Re: mjstox]
    #1517816 - 05/03/03 05:20 PM (13 years, 11 months ago)


C. Exposure Assessment

    1. Dietary exposure from food and feed uses. Tolerances have been
established (40 CFR 180.377) for the combined residues of
diflubenzuron. Permanent tolerances are established for residues of the
insecticide diflubenzuron in or on the following raw agricultural
commodities (RACs): Artichoke at 6.0 ppm; cottonseed at 0.2 ppm;
grapefruit at 0.5 ppm; mushroom at 0.2 ppm; orange at 0.5 ppm; rice
grain at 0.02 ppm; soybean at 0.05 ppm; tangerine at 0.5 ppm; walnuts
at 0.1 ppm; fat, mbyp, and meat of cattle, goats, hogs, horses, sheep
at 0.05 ppm; milk at 0.05 ppm; poultry fat, mbyp, meat at 0.05 ppm; and
eggs at 0.05 ppm 40 CFR 180.377(a)(1). There are also tolerances with
regional registration established in or on pasture grass at 1 ppm and
range grass at 3 ppm 180.377(c). Risk assessments were conducted by EPA
to assess dietary exposures from diflubenzuron in food as follows:
    i. Acute exposure. Acute dietary risk assessments are performed for
a food-use pesticide if a toxicological study has indicated the
possibility of an effect of concern occurring as a result of a 1 day or
single exposure. No acute endpoints were identified for diflubenzuron;
therefore, an acute dietary exposure analysis was not performed.
    ii. Chronic exposure. In conducting this chronic dietary risk
assessment, the Dietary Exposure Evaluation Model (DEEMTM)
analysis evaluated the individual food consumption as reported by
respondents in the USDA 1989-1992 nationwide Continuing Surveys of Food
Intake by Individuals (CSFII) and accumulated exposure to the chemical
for each commodity. The following assumptions were made for the chronic
exposure assessments: For the chronic analysis, anticipated residue
information based on field trial data, and percent of crop treated
(%CT) information for some commodities were used (Tier 3). A value of
1% was used for %CT values <1%. CPU is the major degradate found in
water and mushrooms and is a significant metabolite in milk. EPA has
concluded that the residues of concern are diflubenzuron and
metabolites PCA and CPU.
    iii. Cancer. Based on the submitted metabolism studies, there are
two possible sources for dietary exposure to PCA and CPU: residues in
mushrooms and residues in milk and liver. EPA used the results from
metabolism studies to determine the percent of total radioactive
residue present as PCA + CPU in mushrooms, milk and liver. For milk and
liver, anticipated residues were calculated from the results of the
ruminant feeding study using tolerance level residues in animal feed
items and adjusting for percent of crop treated. The total levels of
PCA + CPU were estimated by multiplying the ratio of (PCA + CPU)/
diflubenzuron by the diflubenzuron consumption from DEEM.

My foaf would not use it. :wink:

6T  :tongue: 

~whiskey river rafting, hot tubbing, dirty dancing & spending money on - wild women - having fun & just gonna waste the rest~

Edited by SixTango (05/03/03 05:27 PM)

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Registered: 02/24/03
Posts: 12
Last seen: 11 years, 2 months
Re: gnat control [Re: SixTango]
    #1517969 - 05/03/03 07:12 PM (13 years, 11 months ago)

I wouldn't worry to much about the exposure to Dimilin. Any store bought mushrooms will have been exposed to Dimilin. Most of the fruits and vegetables
we eat are exposed to Dimilin or some sort of Insecticide.

It is important on how you apply and handle the Insecticide. I would like to know if any body has used this Insecticide to control gnats and the procedures they follow.

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Registered: 01/19/99
Posts: 2,336
Loc: Uranus
Trusted Cultivator
Re: gnat control [Re: mjstox]
    #1521514 - 05/05/03 11:48 AM (13 years, 11 months ago)

I have no idea about it.
But, could you give a few details on your picture there? Looks like the bulk neglect boxes I used to make. Or is it just a agaricus style bag fruiting?

"From a certain point of view"
-Jedi Master Obi Wan Kenobi

PM me with any cultivation questions.

I just looked at my profile and realized I had a website at one point in time on geocities, it's not there anymore and I have no idea what I had on it. Anybody remember my website from several years aga? PM if so please.

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Registered: 09/03/01
Posts: 526
Loc: WA near seattle
Last seen: 2 years, 6 months
Re: gnat control [Re: mjstox]
    #1521744 - 05/05/03 01:58 PM (13 years, 11 months ago)

some insects are atracted by by-products produced by mushroom mycelium.

for me, the best fly and other insect control comes in the form of traps. i use those sticky strips, hung near my terraria.

bug zappers also work well

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Myconerd - DBK
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Registered: 12/09/02
Posts: 8,272
Loc: Over There
Last seen: 11 days, 11 hours
Re: gnat control [Re: tchyted]
    #1522029 - 05/05/03 04:02 PM (13 years, 11 months ago)

This bum i know has never had any problems with gnats in his grow area. This is notable considering that gnats are routinely seen in his place of living what with muclh beds outside and all (lucky bum). He attributes the lack of gnats to the use of hanging plastic doorways and airlocks with a fan constantly pushing air down from above the outer entrance. He told me that given enough room and some plastic sheeting this strategy is quite easy to implement.

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Registered: 02/24/03
Posts: 12
Last seen: 11 years, 2 months
Re: gnat control [Re: mycofile]
    #1522059 - 05/05/03 04:12 PM (13 years, 11 months ago)

Mycofile those are bulk neglect type boxes that you are looking at. That flush you are looking at is from a multispore / wheat straw combo.

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Registered: 02/24/03
Posts: 12
Last seen: 11 years, 2 months
Re: gnat control [Re: mjstox]
    #1522191 - 05/05/03 05:05 PM (13 years, 11 months ago)

Sticky mats will only work to control the adult gnat problem. Adult gnats do not cause any damage to crops. gnat larvae are the problem.

My friend has used Bacillus thuringiensis v. israelensis with stick mats to control both larvae and adults. It really takes care of his problem.

According to my reading Bacillus thuringiensis v. israelensis will only control larvae to about 60% - 70%

Dimilin controls it to 90%. Dimilin is used by all the commercial mushroom operations to control gnats. It has only been recently that Dimilin been made to the public for its demand in fish aquaculture trade.

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elephant man

Registered: 11/07/02
Posts: 3,002
Loc: Yorkshire Moors, Great Br...
Re: gnat control [Re: mjstox]
    #1522740 - 05/05/03 08:14 PM (13 years, 11 months ago)

Why not just invest in some frogs ?  :smile:

Fungi Perfecti use them !  :grin:




Edited by Bi0TeK (05/05/03 08:23 PM)

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