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Full-Text Articles in Life Sciences

Effect Of Spirotetramat Concentration On Anagyrus Pseudococci Mortality, Jacob Tice Nivison Oct 2018

Effect Of Spirotetramat Concentration On Anagyrus Pseudococci Mortality, Jacob Tice Nivison

Wine and Viticulture

Control of vine mealybug in vineyard systems is of critical importance due to economic injury potential including an ability to vector virus. Traditional management of this pest has relied heavily upon the use of systemic and contact insecticides. The systemic insecticide MoventoÒ, registered for vine mealybug and active ingredient spirotetramat, has been shown to be compatible with biological control. However potential side effects of chemical controls on beneficial insect populations is known to affect non target arthropods. This study examined the effect of the systemic insecticide spirotetramat on populations of adult parasitic wasps, Anagyrus psuedococci, at two concentrations with wasps ...


Vineyard Age Effect On Juice Chemistry, Anthocyanins, And Total Phenolics, Eric L. Camera Dec 2017

Vineyard Age Effect On Juice Chemistry, Anthocyanins, And Total Phenolics, Eric L. Camera

Wine and Viticulture

Grapevines (cv Zinfandel) planted in the same vineyard 100 years apart were analyzed for juice chemistry and phenolic content of the fruit. The vineyard was dry farmed, and vines from the original 1890 vineyard were compared to vines inter-planted in 1990. As “old vine” wines can command higher prices in the market due to a perceived difference in fruit characteristics. This study attempted to observe if there was a measurable difference in fruit characteristics, or if it is simply an effective marketing strategy. There has been little research conducted in the wine industry attempting to observe a difference of old ...


Root Stimulation Using Vermi-Products In Grape Vine Propagations, Katerina M. Flores Dec 2014

Root Stimulation Using Vermi-Products In Grape Vine Propagations, Katerina M. Flores

Wine and Viticulture

Vermi-products are byproducts produced from earthworms digesting and decomposing a natural material into another. Liquid teas or extracts of vermi-products are another form of leachate material found in the completed compost bin. These products are not high in essential plant macronutrients, have an average neutral pH (around 7.0), and are known for living microbial population. Grapevine propagations cut from the Trestle Vineyard at California Polytechnic State University, San Luis Obispo were used to observe root growth development using steer compost, vermicompost, and vermi-extract. Propagations used were dormant Pinot Noir clone 777. Compost subsamples tested 5%, 10%, 20%, and 40 ...


Updated Ethography For European Starlings (Sturnus Vulgaris) In Central Coast Vineyards, Vic A. Guerrero Mar 2014

Updated Ethography For European Starlings (Sturnus Vulgaris) In Central Coast Vineyards, Vic A. Guerrero

Wine and Viticulture

No abstract provided.