A Novel Nozzle-Adjuvant System for Low Volume Pesticide Application for Agriculture and Forestry

2008 ◽  
pp. 172-172-10
Author(s):  
F Sexton ◽  
R Johnson ◽  
PM McMullan
Keyword(s):  
Pesticide Application ◽  
Adjuvant System ◽  
Low Volume

scholarly journals Improving spray distribution and coverage on avocado trees in low volume concentrate sprays

2008 ◽  
Vol 61 ◽  
pp. 147-152
Author(s):  
R.E. Gaskin ◽  
D.W.L. Manktelow ◽  
H. Pak
Keyword(s):  
New Zealand ◽  
Pesticide Application ◽  
Large Trees ◽  
Canopy Volume ◽  
Tree Canopies ◽  
Spray Distribution ◽  
Low Volume ◽  
Spray Applications

Avocado trees in New Zealand orchards are planted on squares spaced 714 m apart with tree heights of up to 14 m Large trees present considerable difficulties with regards to pesticide application A series of studies was undertaken on 68 m high trees to optimise formulation prescriptions for airblast application of copper sprays Treatments included standard (up to 3000 litres/ha) and low volume (6001000 litres/ha) concentrate spray applications applied with the addition of varying rates of an organosilicone superspreader adjuvant Spray deposits were measured on foliage in the inner and outer sections of the lower mid and upper tree canopies Low volume concentrated sprays with the superspreader adjuvant added gave higher and more evenly distributed spray deposits on positions throughout the canopy than standard sprays Three times concentrate sprays were more effective than five times concentrate sprays because of the large canopy volume of the trees The adjuvant maximised coverage and evenness of spray deposits

A metering system for ultra-low volume pesticide application

1974 ◽  
Vol 19 (4) ◽  
pp. 439-442
Author(s):  
S.D. Johnson ◽  
L.K. Pickett ◽  
A.J. Howitt
Keyword(s):  
Pesticide Application ◽  
Low Volume

scholarly journals A Comparison of Airblast and Air Assisted Rotary Atomizer Spray Technologies in Peach Production

2004 ◽  
Vol 14 (4) ◽  
pp. 555-559 ◽  
Author(s):  
Charles C. Reilly ◽  
Michael W. Hotchkiss ◽  
Kathryn C. Taylor
Keyword(s):  
Prunus Persica ◽  
Brown Rot ◽  
Monilinia Fructicola ◽  
Insect Damage ◽  
Pesticide Application ◽  
Ripe Fruit ◽  
Residue Detection ◽  
Four Seasons ◽  
Low Volume ◽  
Rhodamine B Dye

Pesticide application in peach (Prunus persica) orchards with a commercial airblast sprayer was compared to that of an air assisted rotary atomizer (AARA), low-volume sprayer during the 2000 through 2003 seasons. The two technologies were employed during early season petal fall applications, shuck split applications and standard cover sprays using phosmet, sulfur, propiconazole, chlorothalonil, azoxystrobin and captan. Ripe fruit, picked 1 day prior to first harvest each season were rated for peach scab (Cladosporium carpophilum), brown rot (Monilinia fructicola), insect (Hemipteran) damage (cat facing), and blemishes. Differences in brown rot, insect damage, and blemish ratings were not detected between the treatments for each of the four seasons. Differences were detected during the 2000 and 2001 seasons for peach scab, with the AARA sprayer plots having a higher incidence. Spray coverage was quantitatively evaluated with Rhodamine B dye by leaf rinses that indicated there was equivalent coverage for each application method. Phosmet residue detection on trees of the treated rows was also equivalent from each method. Phosmet off-target spray movement (drift) was reduced 59% one row away from the treated row and 93% in the fifth row from the treated row by the AARA sprayer compared to airblast sprayer drift.

Deposition and distribution of fungicide smoke particles detected with electron beam analysis

1986 ◽  
Vol 44 ◽  
pp. 198-199
Author(s):  
C. R. Krause ◽  
C. C. Powell
Keyword(s):  
Electron Beam ◽  
Particle Deposition ◽  
Particle Morphology ◽  
Pesticide Application ◽  
Application Technology ◽  
Beam Analysis ◽  
Low Volume ◽  
Agricultural Industries ◽  
And Behavior ◽  
Fate And Behavior

Low volume pesticide application technology is being used in various agricultural industries to lower application costs and increase efficacy of pesticides. Current methodology to discern the fate and behavior of fungicide particles produced by low volume pesticide application technologies is inadequate. Since low volume applicators generate particles from 1-15μm, direct observation of particle deposition is not feasible with light microscopy using fluorescent dye tracers or other impaction methods. Electron beam analysis (EBA), a combination of scanning electron microscopy (SEM) and energy dispersive X-ray analysis (EDXA), offers a direct approach for evaluation of the deposition of fungicide smoke or fumigation particles due to the inherent resolution of the instrumentation. The theory is that knowledge of particle morphology and chemical composition can lead to identification of specific fungicide deposition.

scholarly journals Air-assisted boom sprayer and spray deposition on bean plants

2003 ◽  
Vol 60 (2) ◽  
pp. 211-215 ◽  
Author(s):  
Fernando Cesar Bauer ◽  
Carlos Gilberto Raetano
Keyword(s):  
Nitric Acid ◽  
Spray Deposition ◽  
Control Level ◽  
Randomized Experiment ◽  
Spray Drift ◽  
Pesticide Application ◽  
Crop Pest ◽  
Bean Plants ◽  
Application Techniques ◽  
Low Volume

The development of safe pesticide application techniques with low volume rates, frequency and spray drift, along with the need to obtain better control level of crop pest control levels, justify the air-assistance in boom sprayers. The aim of this research was to evaluate the spray deposition on bean plants with different nozzles and volume rates by air-assisted and non-assisted sprayers. A completely randomized experiment was carried out using copper oxide as a tracer (50% metalic copper) for deposit evaluation. The artificial targets were fixed on the upper and under-side of the leaflets, at the top and lower third of the same plants under the spray boom. After application, targets were washed individually with an extracting solution of nitric acid (1.0 mol L-1). The tracer deposition on the artificial targets was quantified by atomic absorption spectrofotometry. The effects of air-assisted spray were not significant in relation to spray deposition 48 days after emergence of the bean plants.

scholarly journals Control Method and Effect of Low Volume Pesticide Application to Mulberry Scale, Pseudaulacaspis pentagona (Targioni), Using Mist Blower in Tea Field

2009 ◽  
Vol 44 (4) ◽  
pp. 233-239
Author(s):  
Daisuke MIYAMA ◽  
Osamu SUMIKAWA ◽  
Takuya ARAKI ◽  
Yasushi SATO ◽  
Chikara ISHIJIMA ◽  
...  
Keyword(s):  
Control Method ◽  
Pesticide Application ◽  
Pseudaulacaspis Pentagona ◽  
Low Volume ◽  
Tea Field

475: Clinically Insignificant Prostate Cancer - Can we Reliable Predict Low Volume and Low Grade Prostate Cancer Preoperatively?

2006 ◽  
Vol 175 (4S) ◽  
pp. 154-154
Author(s):  
Michael Alschibaja ◽  
Joerg Massmann ◽  
Armin Funk ◽  
Heiner Van Randenborgh ◽  
Rudolf Hartung ◽  
...  
Keyword(s):  
Prostate Cancer ◽  
Low Grade ◽  
Low Volume ◽  
Insignificant Prostate Cancer
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