2019 pest management guide for tree fruits in the mid-Columbia area : Hood River, The Dalles, White Salmon

Recommends pest management practices for tree fruits in the Mid-Columbia area.The primary purpose of this pest management guide is to provide fruit growers with up-to-date information on registered pesticide uses considered to be effective for controlling insect pests, mite pests, and diseases, when applied at the listed rates and timings. Pesticide use is one element of integrated pest management programs. See pages 2-9 for additional information on pesticide stewardship and integrated pest management resources. Providing comprehensive information on safe and effective use of pesticides is beyond the scope of this publication. Pesticide users should refer to the product label for basic information on permitted uses and hazards associated with specific pesticides. The label specifies the minimum requirements for personal protective equipment (PPE). The potential for applicator exposure is generally higher for airblast sprayer application. Consider using additional PPE beyond what is specified on the label when making airblast applications. The National Pesticide Applicator Certification Core Manual (http://www.oregon.gov/ODA/shared/Documents/Publications/PesticidesPARC/PesticideApplicatorCore Manual.pdf) provides a complete guide to safe handling and use of pesticides. For state-specific pesticide applicator information, see the Oregon Core Manual Addendum, which discusses the major areas of Oregon pesticide laws and regulations (http://www.oregon.gov/ODA/shared/Documents/Publications/ PesticidesPARC/PesticideAddendum.pdf).Published January 2019. A more recent revision exists. Facts and recommendations in this publication may no longer be valid. Please check for up-to-date titles in the OSU Extension Service Catalog: http://extension.oregonstate.edu/catalo

Adding yeasts with sugar to increase the number of effective insecticide classes to manage Drosophila suzukii (Matsumura) (Diptera: Drosophilidae) in cherry

BACKGROUND: Drosophila suzukii is a major pest of cherry in the western United States. We evaluated whether the addition of sugary baits could improve the efficacy of two classes of insecticides not considered to be sufficiently effective for this pest, diamides and spinosyns, in laboratory and field trials in cherry. RESULTS: Adding cane sugar alone or in combination with the yeasts Saccharomyces cerevisiae or Aureobasidium pullulans significantly improved insecticide efficacy. However, the significance of adding yeasts to the sugar plus insecticide on fly mortality varied with respect to both the insecticide and yeast species. The addition of S. cerevisiae to sugar also did not significantly reduce egg densities in fruit compared with sugar alone. The addition of a yeast plus sugar significantly reduced egg densities in three field trials with cyantraniliprole and in two out of three trials with spinosad. CONCLUSION: The addition of cane sugar with or without yeast can improve the effectiveness of diamide and spinosyn insecticides for D. suzukii in cherry. Inclusion of these two insecticides in D. suzukii management programs may alleviate the strong selection pressure currently being imposed on a few mode-of-action insecticide classes used by growers to maintain fly suppression over long continuous harvest periods of mixed cultivars.Keywords: sugar, yeast, pest management, spotted-wing drosophil

2017 pest management guide for tree fruits in the mid-Columbia area : Hood River, The Dalles, White Salmon

Revised January 2017. Facts and recommendations in this publication may no longer be valid. Please look for up-to-date information in the OSU Extension Catalog: http://extension.oregonstate.edu/catalogPresents pesticide and herbicide application rates and recommendations, by tree growth stage, for pests that infect fruit trees. Covers apples, pears, and cherries. Provides (1) spray program for nutrients; (2) dilutions table for wettable powder and liquid products; (3) natural enemy impact guide for tree fruit pesticides; (4) illustrated bud development chart and associated stages for apples, pears, peaches, apricots, cherries, and plums; (5) reentry levels for common pesticides; and (6) application rates for chemical thinning and growth regulator sprays

2018 pest management guide for tree fruits in the mid-Columbia area : Hood River, The Dalles, White Salmon

The primary purpose of this pest management guide is to provide fruit growers with up-to-date information on registered pesticide uses considered to be effective for controlling insect pests, mite pests, and diseases, when applied at the listed rates and timings. Pesticide use is one element of integrated pest management programs. See pages 2-9 for additional information on pesticide stewardship and integrated pest management resources.Revised January 2018. Information within this publication may be outdated. Please look for up-to-date information in the OSU Extension Catalog: http://extension.oregonstate.edu/catalo

2020 pest management guide for tree fruits : Hood River, The Dalles, White Salmon, Rogue Valley

This guide provides tree fruit growers with the latest information on pesticides and herbicides for fruit trees. People who grow apples, pears and cherries can learn application rates and recommendations for each stage of tree growth.Published January 2020. A more recent revision exists. Facts and recommendations in this publication may no longer be valid. Please check for up-to-date titles in the OSU Extension Service Catalog: http://extension.oregonstate.edu/catalo

Prevención y manejo del virus del enrollamiento de la hoja y de los piojos harinosos en viñedos del estado de Oregon

Published January 2010. Reviewed January 2014. Please look for up-to-date information in the OSU Extension Catalog: http://extension.oregonstate.edu/catalogKeywords: grapevine leafroll virus, mealybugs, grape vineyardsKeywords: grapevine leafroll virus, mealybugs, grape vineyard

Grapevine leafroll virus and mealybug prevention and management in Oregon vineyards

Published October 2009. Reviewed January 2014. Please look for up-to-date information in the OSU Extension Catalog: http://extension.oregonstate.edu/catalogKeywords: grapevine leafroll virus, grape vineyards, mealybug

Multi-Jet Event Rates in Deep Inelastic Scattering and Determination of the Strong Coupling Constant

Jet event rates in deep inelastic ep scattering at HERA are investigated applying the modified JADE jet algorithm. The analysis uses data taken with the H1 detector in 1994 and 1995. The data are corrected for detector and hadronization effects and then compared with perturbative QCD predictions using next-to-leading order calculations. The strong coupling constant alpha_S(M_Z^2) is determined evaluating the jet event rates. Values of alpha_S(Q^2) are extracted in four different bins of the negative squared momentum transfer~\qq in the range from 40 GeV2 to 4000 GeV2. A combined fit of the renormalization group equation to these several alpha_S(Q^2) values results in alpha_S(M_Z^2) = 0.117+-0.003(stat)+0.009-0.013(syst)+0.006(jet algorithm).Comment: 17 pages, 4 figures, 3 tables, this version to appear in Eur. Phys. J.; it replaces first posted hep-ex/9807019 which had incorrect figure 4

Multiplicity Structure of the Hadronic Final State in Diffractive Deep-Inelastic Scattering at HERA

The multiplicity structure of the hadronic system X produced in deep-inelastic processes at HERA of the type ep -> eXY, where Y is a hadronic system with mass M_Y< 1.6 GeV and where the squared momentum transfer at the pY vertex, t, is limited to |t|<1 GeV^2, is studied as a function of the invariant mass M_X of the system X. Results are presented on multiplicity distributions and multiplicity moments, rapidity spectra and forward-backward correlations in the centre-of-mass system of X. The data are compared to results in e+e- annihilation, fixed-target lepton-nucleon collisions, hadro-produced diffractive final states and to non-diffractive hadron-hadron collisions. The comparison suggests a production mechanism of virtual photon dissociation which involves a mixture of partonic states and a significant gluon content. The data are well described by a model, based on a QCD-Regge analysis of the diffractive structure function, which assumes a large hard gluonic component of the colourless exchange at low Q^2. A model with soft colour interactions is also successful.Comment: 22 pages, 4 figures, submitted to Eur. Phys. J., error in first submission - omitted bibliograph