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Effect of Two Different Nozzle Arrangements on Control of Carrot Weevil, Listronotus oregonensis (LeConte), in Processing Carrots

G. M. Ghidiu, E. Hitchner, M. Zimmerman, and E. Rossell

April 2006


Field studies were conducted to determine the effect of two different nozzle arrangements on the control of the carrot weevil in processing carrots. Two drop nozzles per row directed at the base of the plant resulted in significantly fewer damaged carrots caused by carrot weevil feeding. However, carrot weevil damage to carrots was high each year in all treatments even during and after multiple pesticide applications.


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