Actions for Spray Retention is Affected by Spray Parameters, Species, and Adjuvants

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Spray Retention is Affected by Spray Parameters, Species, and Adjuvants / DE. Bruns, JD. Nalewaja

Conference Author
Pesticide Formulations and Application Systems: Eighteenth Volume (18th : 1997 : San Diego, California)
Published
West Conshohocken, Pa. : ASTM International, 1998.
Physical Description
1 online resource (13 pages) : illustrations, figures, tables
Additional Creators
Bruns, DE., Nalewaja, JD., American Society for Testing and Materials, and ASTM International
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Summary
Spray retained by soybean, [Glycine max (L.) Merr. var. Ozzie], common lambsquarters [Chenopodium album (L.)], and redroot pigweed [Amaranthus retroflexus (L.)] was determined using a dye spectrophotometric method for water sprays (without pesticides) varying volume, droplet size, and adjuvants. Spray retained based on leaf area generally was greater for small than large droplets and more for surfactants than for oil adjuvants. Surfactants, Tergitol¿̐ư 15-S-9 and Tergitol¿̐ư 15-S-30, enhanced spray retained more for common lambsquarters than redroot pigweed or soybean. The oil adjuvants, methylated canola oil (MCO), canola oil (CO), and petroleum oil (PO) generally reduced spray retained by redroot pigweed, but generally increased spray retained by common lambsquarters compared to water spray alone. Spray retained by soybean was also increased by oil adjuvants, except for PO applied in droplets from an 8004 nozzle. Spray retained decreased as spray volume increased from 160 to 320 L/ha for surfactants and 80 to 160 L/ha for CO and MCO. Species retained more spray as oil adjuvant concentration increased from 0.25 to 4% v/v. However, retention decreased when Tergitol¿̐ư 15-S-9 and 15-S-30 increased from 1 to 4%. The results of the present research with a water carrier demonstrate that optimization of spray retention requires a consideration of adjuvants, species, and spray parameters.
Dates of Publication and/or Sequential Designation
Volume 1998, Issue 1347 (January 1998)
Subject(s)
Other Subject(s)
ISBN
9780803153929 (e-ISBN)
9780803124912
0803124910
Digital File Characteristics
text file PDF
Bibliography Note
Includes bibliographical references 15.
Other Forms
Also available online via the World Wide Web. Tables of contents and abstracts freely available; full-text articles available by subscription.
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Also available in PDF edition.
Reproduction Note
Electronic reproduction. W. Conshohocken, Pa. : ASTM International, 1998. Mode of access: World Wide Web. System requirements: Web browser. Access may be restricted to users at subscribing institutions.
Technical Details
Mode of access: World Wide Web.
Source of Acquisition
ASTM International PDF Purchase price USD25.
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