Residue behavior of combination mix formulations in/on bittergourd and their efficacy against melon fruitfly.
Persistence behavior of three combination mix formulations of insecticides viz. chlorpyriphos + cypermethrin (Action-505), profenofos + cypermethrin (Roket 44EC) and triazophos + deltamethrin (Anaconda) and their bioefficacy against melon fruitfly were studied in bittergourd fruits following spray application. Half-life values of the constituent insecticides calculated from first order dissipation kinetics were ~2-3 days. Based on acceptable daily intake values, safe waiting period of 3-days is suggested for all the three combination mix formulations at recommended dose of application. Anaconda (1 L/ha) was found to be most effective against Melon fruitfly as it gave 11.72 % (number/number) and 10.93 % (weight/weight) damage as compared to control 41.13 % and 41.16 %, respectively. Anaconda at lower and higher dose (1 and 2 L/ha) was not significantly different. Rocket (2 L/ha) and Action 505 (2 L/ha) were also found effective.
Division of Agricultural Chemicals, Indian Agricultural Research Institute, New Delhi 110012, India. drsumangupta2002@yahoo.com
Suman
S
Gupta
Rakesh K
RK
Sharma
Vijay T
VT
Gajbhiye
Ram K
RK
Gupta
D000818:Animals; D006207:Half-Life; D007306:Insecticides / Q000032:analysis* / Q000633:toxicity; D007700:Kinetics; D029777:Momordica charantia / Q000737:chemistry*; D009570:Nitriles / Q000032:analysis / Q000633:toxicity; D063086:Organothiophosphates / Q000032:analysis / Q000633:toxicity; D010573:Pesticide Residues / Q000032:analysis* / Q000633:toxicity; D011722:Pyrethrins / Q000032:analysis / Q000633:toxicity; D033621:Tephritidae; D014230:Triazoles / Q000032:analysis / Q000633:toxicity
D007306:Insecticides; D009570:Nitriles; D063086:Organothiophosphates; D010573:Pesticide Residues; D011722:Pyrethrins; D014230:Triazoles; C017160:cypermethrin; C017180:decamethrin; C012584:triazophos; C024273:profenofos