scholarly journals STUDY ON HELICOPTER AERIAL SPRAYING UNDER FIELD CANOLA CONDITIONS

2020 ◽  
Vol 29 (3) ◽  
pp. 893-910
Author(s):  
E. M. E. Sehsah
Keyword(s):  
EPPO Bulletin ◽  
1971 ◽  
Vol 1 (2) ◽  
pp. 42-43
Author(s):  
M. Audibert
Keyword(s):  

2005 ◽  
Vol 83 (12) ◽  
pp. 1622-1629 ◽  
Author(s):  
J.K. Rowntree ◽  
E. Sheffield

The systemic herbicide asulam is used extensively to control the weedy fern bracken ( Pteridium aquilinum (L.) Kuhn). Other ferns were thought to be highly sensitive to asulam exposure, but there has been a dearth of experimental evidence. Eight fern species were exposed to asulam spray at three different application rates or a control of water. Asulam was applied at the recommended field application rate for bracken clearance, and at two further rates corresponding to 10 and 50 m downwind of an aerial spray event. Damage was assessed over two seasons. All ferns tested were severely damaged by exposure to the highest application rate, but sensitivity varied between species. Maximum damage occurred 1 year after spraying, and limited signs of recovery could be seen by the second season. The effects of adding the adjuvant Agral® to applications of asulam were tested on the threatened pteridophyte Pilularia globulifera L. No damage additional to that caused by exposure to asulam was observed. This work supports the view that 50 m buffer zones are sufficient to protect sensitive ferns from the effects of aerial spraying with asulam, provided that drift-reducing nozzles are used and the manufacturer’s application guidelines are observed.


2009 ◽  
Vol 20 (5) ◽  
pp. 209-211
Author(s):  
Graham Matthews
Keyword(s):  

1986 ◽  
Vol 29 (1) ◽  
pp. 0090-0096 ◽  
Author(s):  
J. J. C. Picot ◽  
D. D. Kristmanson ◽  
N. Basak-Brown

2017 ◽  
Vol 8 (2) ◽  
pp. 870-875
Author(s):  
M. J. Zhang ◽  
R. R. Zhang ◽  
G. Xu ◽  
L. P. Chen

Problems in the process of manned agricultural aerial spraying, such as heavy workload in route planning, overlaps or omissions in spraying seriously reduce the efficiency of spraying and utilization rate of pesticides. This paper presents the design and development of a navigation system for manned agricultural aerial spraying based on an industrial tablet PC. This system provides three key functions: route planning, spraying navigation and real-time evaluation of spraying quality. The test and application results show that this system has high efficiency in route planning, and the average coverage rate of spraying could reach as high as 96%. Its application effect is remarkable, and as a result, this system can meet the demand of manned agricultural aerial spraying in route planning and navigation.


2011 ◽  
Vol 26 (1) ◽  
Author(s):  
César Paz-y-Miño ◽  
María José Muñoz ◽  
Adolfo Maldonado ◽  
Carolina Valladares ◽  
Nadia Cumbal ◽  
...  

2018 ◽  
pp. 223-246
Author(s):  
Clapperton Chakanetsa Mavhunga

This chapter explores the use of aircraft to spray organochlorine pesticides (OCPs). It begins by tracing the origins of the practice in KwaZulu, South Africa, where ndege were adopted for pesticide spraying because of their ease of use, capacity for large-scale coverage, very few personnel required, and capability to reach mpukane habitats otherwise inaccessible by ground spraying. The second section examines the technical aspects of aerial spraying as an example of the extension of methods designed in the United States for agricultural or military purposes to deal with zvipukanana and with conditions for which they were not originally designed. In the final sections, the deployment and performance of first fixed-wing aircraft and then helicopters are closely examined.


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