Topics in Subtropics

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Topics in Subtropics Blog
You can subscribe to this  blog with multiple entries per week reflecting what's happening with subtropical crops and upcoming educational events.  Just click on the "Subscribe" button just to the right of this paragraph.  There's also our seasonal quarterly Topics in Subtropics newsletter found at our Ventura, Santa Barbara, San Luis Obispo, Riverside, San Diego, Tulare and Kern Counties Cooperative Extension websites.
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p deficiency in citrus

Phosphorous Acid Confusion

July 15, 2015
By Ben A Faber
It is more than just the confusion about the effects of phosphonates, but also how to spell the words associated with the P atom. Phosphorus with an ending in us is the element we know as P, while Phosphorous with a ous ending is the adjective of P.
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Ants feeding on a drop of honeydew, Photo by: Husni Che Ngah

Ants- they keep coming back

July 10, 2015
By Sonia I Rios
Many growers seem like they will never win the never ending battle with ants, they're everywhere! Conversely, ants travel through soil and help loosen it improving quality, allowing water, air, and nutrients to flow freely through it.
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feel method

Soil Based Irrigation Scheduling

July 6, 2015
By Ben A Faber
. A rule of thumb is that irrigation should be done when about 50% of the water has been depleted from the soil in the plant's root zone. This 50% value, however, allows a buffer of water in the soil in case the weather suddenly turns hot and windy.
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