Evaluation of thermal, pneumatic and biological methods for controlling Colorado potato beetles (Leptinotarsa decemlineata Say) |
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| Authors: | N M Rifai T Astatkie M Lacko-Bartosova P Otepka |
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| Institution: | (1) Department of Engineering, Nova Scotia Agricultural College, P.O. Box 550, B2N 5E3 Truro, NS, Canada;(2) Department of Sustainable Agriculture and Herbology, Slovak Agricultural University, Tr. A. Hlinku 2, 949 76 Nitra, Slovakia |
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| Abstract: | Summary The efficacies of four methods (hot water steam (HS), open flame (OF), pneumatic collector (PC), bio-insecticide NOVODOR (BT))
for controlling Colorado potato beetles (CPB) in potatoes were compared under field conditions. HS, OF and PC were tested
at various driving speeds, and all methods were tested on CPB that were at three life stages. The results suggest that the
best time to control CPB is at L1–2 stage using BT (86% effectiveness). When averaged across driving speeds, OF performed better than HS and PC with 56% efficacy
on L1–2, and 45–50% on L3–4 and Adult life stages. PC worked relatively better on L3–4 than on L1–2 and Adult life stages. HS gave excellent efficacy (63% on L1–2, 52–54% on L3–4 and Adult) at 1.0 km/h speed. This research demonstrated the potential of alternative CPB control methods, and identified
the optimum life stage and driving speed for best results. |
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| Keywords: | hot-water open flame bio-collector ecological farming organic agriculture |
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