The OML-SprayDrift model for predicting pesticide drift and deposition from ground boom sprayers

Løfstrøm, Per; Bruus, Marianne; Andersen, Helle Vibeke; Kjær, Christian; Nuyttens, David; Astrup, Poul

doi:10.1584/jpestics.d12-064

Cited by 16 publications

(11 citation statements)

References 25 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Children also work during the planting and harvesting seasons to help their parents and neighbors (Nugroho, 2013). Pesticides present in the soil and onion crops evaporate with increases in air temperature (Damalas and Eleftherohorinos, 2011), and increasing air temperature from 5 °C to 25 °C can increase dust production by 10%−30% (Løfstrøm et al, 2013). In this work, children who cut onion leaves were 3.35 times more likely to be exposed to organophosphate pesticides than those who did not (p = 0.002).…”

Section: Resultsmentioning

confidence: 61%

Factors of Organophosphate Pesticide Exposure on School Children in An Agricultural Area, Indonesia

Budiyono

Suhartono

Kartini

2021

Kemas

View full text Add to dashboard Cite

Organophosphate is widely used in agriculture in Indonesia and contributes to a public health problem. However, the risk factors of organophosphate exposure, particularly in children living in the agricultural area, have not been described. The research aimed to assess the risk factors associated with organophosphate pesticide exposure on school children living in the agricultural area. This work was a cross-sectional study in 2017 with 166 school children were selected by simple random sampling. Structured questionnaires identified risk factors. Organophosphate metabolites detected by using LC-MS/MS. While chi-square and binary logistic tests as statistical analysis (α=0.05; 95%CI). In 28.9% of subjects, organophosphate metabolites were detected. Cut the onion leaves (p=0.002, OR=3.33, 95% CI:1.55−7.15), the onion, pesticide equipment, or pesticide in their neighbors (p=0.007; OR=2.67; 95%CI:1.31−5.46) was associated with organophosphate pesticide exposure. Involvement in agriculture activities and the onion, pesticide equipment, or pesticide in the neighbor.

show abstract

Section: Resultsmentioning

confidence: 61%

Factors of Organophosphate Pesticide Exposure on School Children in An Agricultural Area, Indonesia

Budiyono

Suhartono

Kartini

2021

Kemas

View full text Add to dashboard Cite

show abstract

“…However, there is little information in the literature reporting if different dicamba formulations produce similar levels of symptomology on non-DT crops when sprayed at similar conditions (pressure, nozzle, boom height, wind speed, temperature, and relative humidity). The extent and severity of a drift event is a result of complex factors including spray application parameters, environmental conditions, herbicide formulation and rate, crop growth stage, and crop sensitivity (Heidary, Douglaz, Sinfort, & Vallet, 2014;Lofstrom et al, 2013). Numerous research studies investigated how soybean symptomology and yield reduction are correlated to crop growth stage during drift exposure events (Auch & Arnold, 1978;Griffin, Bauerle, Stephenson, Miller, & Boudreaux, 2013;Kelly et al, 2005;Osipitan, Scott, & Knezevic, 2019;Solomon & Bradley, 2014;Thompson & Egli, 1973;Wax et al, 1969).…”

Section: Core Ideasmentioning

confidence: 99%

Tank contamination and simulated drift effects of dicamba‐containing formulations on soybean cultivars

Alves

Vieira

Ynfante

et al. 2020

Agrosystems Geosci & Env

View full text Add to dashboard Cite

The objectives of this study were to (a) investigate the spray drift potential of dicamba (3,6‐dichloro‐2‐methoxybenzoic acid) formulations with different nozzles in a low‐speed wind tunnel and (b) evaluate the effects of sublethal rates of dicamba‐containing formulations on non–dicamba‐tolerant (DT) soybean [Glycine max (L.) Merr.] cultivars. The dicamba formulations used were diglycolamine (DGA), N,N‐Bis‐(3‐aminopropyl)methylamine, and diglycolamine with VaporGrip (DGAvg). The wind tunnel drift study was conducted with these three dicamba formulations, two nozzle types (AIXR110015 and TTI110015), and five downwind distances from the nozzle (1, 2, 4, 8, and 12 m). The dicamba rate was 560 g ae ha−1, simulating a 140 L ha−1 carrier volume. The soybean exposure study was conducted in two experimental runs with three sublethal dicamba rates (0.112, 0.56, and 5.6 g ae ha−1), the three dicamba formulations aforementioned, and five non‐DT soybean cultivars (Asgrow A3253, Asgrow AG2636, Credenz CZ2601LL, DynaGro 39RY25, and Hoegemeyer 2511NRR). Applications were made using a spray chamber with a single AI9502EVS even nozzle that delivered 140 L ha−1. During applications, soybean plants were at three‐leaf growth stage. Dicamba formulations had different drift deposition across the AIXR and TTI nozzles. The soybean cultivars had different levels of sensitivity to dicamba and depended on rate vs. formulation interaction. The DGA caused greater biomass reduction on soybean cultivars compared with DGAvg, especially for Credenz CZ2601LL, which was one of the most dicamba‐sensitive cultivars along with Hoegemeyer 2511NRR. Additional care must be taken to mitigate off‐target movement from dicamba applications with these cultivars nearby.

show abstract

“…Off-target movement of pesticides can be complex, in that spraying equipment, wind speed, crop stage, crop sensitivity, atmospheric conditions, and properties of the spray solution may all interact to influence the extent of a drift event (Heidary et al 2014; Lofstrom et al 2013). Many regulations have been enacted pertaining to these variables for dicamba application in DR soybean and cotton to limit off-target movement of the herbicide (Anonymous 2017c, 2017d).…”

Section: Introductionmentioning

confidence: 99%

“…Previous research has examined herbicide drift from ground applications (Bueno et al 2017; Heidary et al 2014; Lofstrom et al 2013). Drift models have proved useful from these studies, and practices of reducing physical drift of herbicides by increasing droplet size or velocity are now used by applicators.…”

Section: Introductionmentioning

confidence: 99%

Off-Target Movement of Diglycolamine Dicamba to Non-dicamba Soybean Using Practices to Minimize Primary Drift

2019

View full text Add to dashboard Cite

Soybean with resistance to dicamba (DR soybean) and glyphosate and cotton with resistance to glyphosate, glufosinate, and dicamba were recently commercialized in the United States and have been readily adopted. To evaluate results of over-the-top application of dicamba in DR crops, field studies were designed to examine off-target movement using proposed sprayer setup recommendations. Association analysis and nonlinear regression techniques were used to examine the effects of 26 field-scale drift trials conducted in 2014 and 2015 during soybean reproductive development (R1 through R6). The greatest predictors (injury, height reduction) of soybean yield reduction generally occurred and had steeper relationships after drift events at the R1 growth stage than at later stages. Using non-DR soybean as an indicator, dicamba was documented to move as much as 152 m from the application area (distance to 5% injury). Instances of height reduction (5%) differed among growth stages, with the greatest distance occurring at R1 (83.4 m). Soybean yield reduction was erratic, with the greatest distance to 5% loss in yield occurring at 42.8 m after an R1 drift event. Overall, the data suggest flowering-stage soybean is more sensitive than later reproductive soybean to injury, height reductions, and yield loss. Average and maximum wind speeds did not account for the injury documented from dicamba, and it is hypothesized that other meteorological variables also play a notable role in dicamba off-target movement as well as growing conditions following exposure. With concerns surrounding off-target movement of dicamba, proper stewardship of this new technology will be key to its longevity.

show abstract

The OML-SprayDrift model for predicting pesticide drift and deposition from ground boom sprayers

Cited by 16 publications

References 25 publications

Factors of Organophosphate Pesticide Exposure on School Children in An Agricultural Area, Indonesia

Factors of Organophosphate Pesticide Exposure on School Children in An Agricultural Area, Indonesia

Tank contamination and simulated drift effects of dicamba‐containing formulations on soybean cultivars

Off-Target Movement of Diglycolamine Dicamba to Non-dicamba Soybean Using Practices to Minimize Primary Drift

Contact Info

Product

Resources

About