Zobrazeno 1 - 10
of 32
pro vyhledávání: '"Gwen A. Hoheisel"'
Publikováno v:
HortScience, Vol 58, Iss 11 (2023)
Freezing temperatures in fall, winter, and spring can cause damage to multiple perennial fruit crops including northern highbush blueberry (Vaccinium corymbosum). Predictive modeling for lethal temperatures allows producers to make informed decisions
Externí odkaz:
https://doaj.org/article/662e645a42634b1c8cabbf6b8c9664c4
Publikováno v:
Frontiers in Plant Science, Vol 13 (2022)
Grape phylloxera (Daktulosphaira vitifoliae, syn. Viteus vitifoliae), a destructive root and foliar pest of grapevines, occurs in almost all viticulture regions worldwide. However, certain regions have remained “phylloxera free.” Until recently,
Externí odkaz:
https://doaj.org/article/7e877f525fcf4854b178ab97ab65e00c
Autor:
Rakesh Ranjan, Rajeev Sinha, Lav R. Khot, Gwen-Alyn Hoheisel, Matthew Grieshop, Mark Ledebuhr
Publikováno v:
Applied Sciences, Vol 11, Iss 2, p 709 (2021)
Solid Set Canopy Delivery Systems (SSCDS) are fixed agrochemical delivery systems composed of a network of micro-sprayers/nozzles distributed in perennial crop canopies. A previous SSCDS design composed of a 3-tier configuration using hollow cone spr
Externí odkaz:
https://doaj.org/article/41affd12e016438e8fb462d7945845c4
Publikováno v:
Journal of Berry Research. 11:631-646
BACKGROUND: Highbush blueberry (Vaccinium corymbosum), the species primarily grown in the state of Washington, U.S., is relatively cold hardy. However, low temperatures in winter and early spring can still cause freeze damage to the buds. OBJECTIVE:
Publikováno v:
Catalyst: Discovery into Practice. 6:9-19
Summary Goals: There are many ways to optimize an airblast sprayer for use in vineyards. Three techniques growers use include: 1) changing nozzle type, 2) reconfiguring or adjusting the nozzles, and 3) adjusting the air-assistance to the droplets dur
Publikováno v:
Sustainability; Volume 14; Issue 17; Pages: 10843
A pneumatic spray delivery (PSD)-based solid set canopy delivery system (SSCDS) consists of in-line reservoirs and micro-emitter assemblies distributed throughout perennial crop canopies. The existing PSD-based SSCDS uses a large number of reservoirs
Autor:
Ramesh K. Sahni, Rakesh Ranjan, Gwen‐Alyn Hoheisel, Lav R. Khot, Elizabeth H. Beers, Matthew J. Grieshop
Publikováno v:
Pest management science. 78(11)
Pneumatic spray delivery (PSD)-based solid set canopy delivery systems (SSCDS) have demonstrated comparable spray deposition and reduced off-target drift compared with axial-fan airblast sprayers in high-density apple orchards. An important next step
Autor:
Gwen A. Hoheisel, Lav R. Khot, Milt E. Teske, Mike J. Willett, Harold W. Thistle, Anura P. Rathnayake
Publikováno v:
Transactions of the ASABE. 64:601-613
HighlightsAirblast sprayer drift potential was evaluated up to 183 m (600 ft) downwind from an orchard edge.A central leader apple orchard was sprayed at dormant and full canopy stage.Higher drift at full canopy stage was likely due to higher wind sp
Publikováno v:
Transactions of the ASABE. 64:1735-1745
HighlightsVariants of a solid set canopy delivery system were evaluated in a high-density apple orchard.A pair of hollow-cone nozzles installed in three tiers had optimum spray performance for studied crop growth stages.A shower-down arrangement of e
Publikováno v:
Transactions of the ASABE. 63:29-35
Efficient chemical spray applications are vital to reduce off-target drift, economic losses to tree fruit growers, and negative environmental impacts. It is thus important to adequately calibrate and adjust orchard sprayers for intended applications.