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Old 04-18-2012, 01:14 AM
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kirk1701 kirk1701 is offline
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Mixing dry Fungicides

Hey Everyone

I'm spraying fruit tree's and one of the fungicides I'm told I need from the contact I've been working with at the Dept. of Horticulture is Captan 50W to go along with Immunox.

I have the captan but it's stayed on a shelf due to laziness I admit it and not knowing how to mix this stuff because its powder and mixed by weight. Plus, the labels all go off mixing 2 to 300 gallon at a time.

Ok, here's the label the guy sent me:
http://www.cdms.net/LDat/ld394019.pdf

And here's a link he sent to mix different herbicides, insecticides and fungicides but even this gets confusing
http://www.uky.edu/Ag/Horticulture/m...ions/HO-83.pdf

I just need to know how to go about getting how much product per 1 gallon?

Thanks
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Old 04-18-2012, 09:09 AM
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You need to know how much product you are needing.....lets say per acre. Lets say you intend on spraying an acres worth of foliage or whatever. The product is 50W, so take the number want to apply X 100 / 50 (Should be 2 lbs. per acre in how ever much water you apply) This is figuring in 1 lb. of product per acre to. You can substitute what the label says instead of 1`. Most of my products indicate x amount of lbs. per 100 gallons of water.
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Old 04-18-2012, 09:46 AM
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kirk1701 kirk1701 is offline
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Quote:
Originally Posted by Think Green View Post
You need to know how much product you are needing.....lets say per acre. Lets say you intend on spraying an acres worth of foliage or whatever. The product is 50W, so take the number want to apply X 100 / 50 (Should be 2 lbs. per acre in how ever much water you apply) This is figuring in 1 lb. of product per acre to. You can substitute what the label says instead of 1`. Most of my products indicate x amount of lbs. per 100 gallons of water.
Ok 4 to 8 Lbs per acre is what I see so but don't see how you arive at a number of ounces which is has to be per gallon Think Green?

I'd go with the 4 or 5 Lbs per acre I guess.
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God created man, man plants grass, fertilized and watered the grass to watch it grow. Man cut grass and this confused God; in his infinite wisdom where did he go wrong? Why would man work, plant, water and once it grew cut it down just to see the process repeat.

Then God created Women
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Old 04-18-2012, 12:59 PM
all things green all things green is offline
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16 0z. in a lb buddy...do the math.....base it off of a hundred gallons....if it is 6 lbs / 100 gal.....then take 6lbs x 16 oz.....and that will tell you how many total ounces there are in 100 gal.....then you can do the math and figure it out to the gallon...basic stuff you should know if you have a liscence...just saying.....
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Old 04-18-2012, 09:57 PM
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I suggest use the directions for dichondra in California. That is, 3.2 ounces in one gallon of water.

Or assume your tree is 10 by 10 feet, a hundred sqft
Divide by 43,560 to get .00229 of an acre
Times 8 pounds to get.0183 lbs
Times 16 to get .2938 ounces Captan per 100 sqft. (Suited for small tree). Or...
That would be about 2.938 ounces per 1000 sqft. (Suited for bigger tree, and about one gallon of water.)
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Old 04-18-2012, 11:52 PM
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Quote:
Originally Posted by RigglePLC View Post
I suggest use the directions for dichondra in California. That is, 3.2 ounces in one gallon of water.

Or assume your tree is 10 by 10 feet, a hundred sqft
Divide by 43,560 to get .00229 of an acre
Times 8 pounds to get.0183 lbs
Times 16 to get .2938 ounces Captan per 100 sqft. (Suited for small tree). Or...
That would be about 2.938 ounces per 1000 sqft. (Suited for bigger tree, and about one gallon of water.)
Thanks Riggle, I don't understand the math but trust your's and your judgement

I sprayed today but it was way way off, 3 tablespoons to 4 gallon of water. I'll adjust in two weeks to your 3.2 ounces/gallon
__________________

God created man, man plants grass, fertilized and watered the grass to watch it grow. Man cut grass and this confused God; in his infinite wisdom where did he go wrong? Why would man work, plant, water and once it grew cut it down just to see the process repeat.

Then God created Women
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Old 04-19-2012, 12:24 PM
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Quote:
Originally Posted by RigglePLC View Post
I suggest use the directions for dichondra in California. That is, 3.2 ounces in one gallon of water.

Or assume your tree is 10 by 10 feet, a hundred sqft
Divide by 43,560 to get .00229 of an acre
Times 8 pounds to get.0183 lbs
Times 16 to get .2938 ounces Captan per 100 sqft. (Suited for small tree). Or...
That would be about 2.938 ounces per 1000 sqft. (Suited for bigger tree, and about one gallon of water.)
Riggle
It was late when I replied and didn't catch the "ounces" is that by weight? Because this stuff is a powder
__________________

God created man, man plants grass, fertilized and watered the grass to watch it grow. Man cut grass and this confused God; in his infinite wisdom where did he go wrong? Why would man work, plant, water and once it grew cut it down just to see the process repeat.

Then God created Women
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Old 04-19-2012, 05:05 PM
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I mix 30 gallons of spray for my orchard at a time. For this amount I use 1/2 # of Captan for a contact fungicide and 1 1/3 oz of Ralley. For bugs 1/2 # of Imidan.

8 oz of Li-700 as a surfactant and acidificant/buffering agent, (we have high ph and this combats hydrolisis.

Since I have Honey crisp, 1/2 gallon of a 10% calcium supplement which they need to combat bitter pit.
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Old 04-20-2012, 07:19 PM
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Quote:
Originally Posted by RigglePLC View Post
I suggest use the directions for dichondra in California. That is, 3.2 ounces in one gallon of water.

Or assume your tree is 10 by 10 feet, a hundred sqft
Divide by 43,560 to get .00229 of an acre
Times 8 pounds to get.0183 lbs
Times 16 to get .2938 ounces Captan per 100 sqft. (Suited for small tree). Or...
That would be about 2.938 ounces per 1000 sqft. (Suited for bigger tree, and about one gallon of water.)
Actually that is simplistic way of calculating.

For Midwestern and Eastern orchards, the aim is to apply 1 gallon of spray solution per 1450 CUBIC feet or orchard foliage. The number of cubic feet in an orchard is obtained by multiplying the tree height times the tree width times the lineal feet in the orchard.
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Old 04-19-2012, 10:06 PM
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kirk1701

you have multiply by to get.
lb/acre .367 oz/1000 ft2
lb/acre .023 #1000 ft2
lb/acre .0023 #100 ft2
lb/acre .0306 x width oz/1000 ft
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