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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earwigs

Citrus, Earwigs and Tree Wraps

April 11, 2014
Installing tree wraps on young trees provides protection to the trunk from applications of herbicides during weed management operations. Additionally, the wraps minimize light interception by trunk tissue thereby reducing sucker growth.
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scale Ceroplastes

Seeing a "new" Scale in Ventura

April 11, 2014
By Ben A Faber
Jane Delahoyde, a PCA here in Ventura, recently found an unusual scale in lemon here. It is barnacle scale with a typically long Latin name - Ceroplastes cirripediformis. It is unlikely to be any worse than other scales, but it's something to keep our eyes on.
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fungiferous mite Wintershmedii

Seeing a "new" Mite in Ventura

April 9, 2014
By Ben A Faber
Bob Hill, a local Ventura PCA, saw an interesting mite he had never seen before and asked if I could id it. Well, I sent it in to Mark Hoddle and UCR and he turned it over to his student Ricky Lara to id it.
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Nitrogen and Potassium Uptake of Avocado Fruit

April 4, 2014
By Ben A Faber
At a recent avocado meeting, Carol Lovatt of the Botany Department at UC Riverside pointed out that avocado fruit take up more potassium than nitrogen, almost twice as much, and that much of that uptake occurs later when the fruit is expanding.
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