DocumentCode :
2356810
Title :
Eco-friendly polymer dispensers for controlled release of agrochemicals
Author :
Shailaja, D. ; Yaseen, M.
Author_Institution :
Org. Coating & Polymer Div., Indian Inst. of Chem. Technol., Hyderabad, India
fYear :
1995
fDate :
15-18 Feb 1995
Firstpage :
27485
Lastpage :
28216
Abstract :
Polymer matrices loaded with agrochemicals are used as controlled release dispensers in pest control. Release kinetics of gossyplure pheromone from polyvinyl chloride (PVC) dispensers for the control of the pink bollworm pest of cotton crop was studied. The dispenser formulation was altered by changing the concentration of the plasticiser, dimethyl phthalate (DMP) and fixing the concentration of gossyplure pheromone. A solvent trap system was designed and fabricated to collect the pheromone released from the dispenser at definite intervals of time. The amount of pheromone released was analysed for quantitative estimation using high performance liquid chromatography (HPLC). The dispensers were found to release gossyplure at a constant rate for a period beyond 30 days of exposure. The release rates were found to increase with increase in the concentration of the plasticizer. Field evaluations for number of insect catches per trap were performed to estimate the effectiveness of the dispensers. The dispensers functioned effectively In controlling the pest up to the full crop period i.e. more than 3 months
Keywords :
agriculture; biocontrol; chromatography; filled polymers; PVC dispensers; agrochemical loaded polymer matrices; controlled agrochemical release; controlled release dispensers; cotton crop; dimethyl phthalate; eco-friendly polymer dispensers; gossyplure pheromone release kinetics; high performance liquid chromatography; insect catches; pest control; pheromone release; pink bollworm pest; plasticiser concentration; release rates; solvent trap system; Biomembranes; Chemical technology; Coatings; Cotton; Crops; Insects; Loss measurement; Pest control; Polymer films; Solvents;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Engineering in Medicine and Biology Society, 1995 and 14th Conference of the Biomedical Engineering Society of India. An International Meeting, Proceedings of the First Regional Conference., IEEE
Conference_Location :
New Delhi
Print_ISBN :
0-7803-2711-X
Type :
conf
DOI :
10.1109/RCEMBS.1995.533036
Filename :
533036
Link To Document :
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