Author Topic: citrus booklet  (Read 1523 times)


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citrus booklet
« on: July 07, 2016, 09:53:48 AM »
LSU has a new info booklet on citrus that has a lot of excellent information. It can be obtained from LSU AG CENTER.COM

HOME Citrus Production. The cost is $10.00 plus tax and postage.


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Re: citrus booklet
« Reply #1 on: July 07, 2016, 10:34:04 AM »
Buddinman, is this the same one as the pdf copy that is on-line?


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Re: citrus booklet
« Reply #2 on: July 07, 2016, 11:21:30 AM »
I was just looking into the PDF online and it mentions something I'd never considered before... interesting:

It is very important to consider the pH of tank water
when preparing pesticides to spray on citrus trees to
control insects. pH is a factor of the acidity or alkalinity
of your water. It is important for your water to be on the
acid side (pH less than 7.0) when spraying insecticides.
Most insecticides are acid-forming materials. If mixed in
an alkaline water solution (pH greater than 7.0), they can
break down before you spray them on your crop. If the
pesticide breaks down, it will not kill the insects you are
trying to control.
The average pH of water in Louisiana is 8.3, while the
optimum range for most insecticides is between 5.5
and 6.5. It is best to check your water pH with a digital
pH pen. pH can be adjusted by adding a buffer before
adding the insecticide. Add buffer, check pH and repeat
until the proper range is reached. Then add insecticide,
mix solution and spray.
Using the correct pH allows the insecticide to give
you the proper knockdown of the pest and extended
residual for proper insect management. Spraying with
out adjusting pH can cause you to spray more and lead
to development of insect tolerance or resistance to the
insecticide used. Tolerance is the ability of an insect or
mite to tolerate exposure to an insecticide. Resistance is
an inherited condition in which the offspring of an insect
or mite that survived an insecticide treatment also have
the ability to survive subsequent insecticide treatments.
Spraying insecticides from a tank solution with the
proper pH will give better control of the pest with fewer
sprays thus saving you time and money, as well as be
ing safer for the environment"


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Re: citrus booklet
« Reply #3 on: July 08, 2016, 03:56:34 PM »
I always spray using pure rain water, which I collect in rain barrels.  The pH of rain water in Colorado is normally between 6 and 6.5 - Millet


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