Figure 4. Comparison of pulse-sparking frequency in the double-netted unit (DNU) under different spacing conditions between the pulse-charged and grounded metal nets. Kudzu vines were inserted into the space between the two nets either from the side of the charged metal net (gray bars) or the grounded metal net (black bars). The number of sparking events was estimated by counting the audible sounds generated during sparking. An asterisk on each column indicates no significant differences, as determined by Tukey's method

From

Installation of a Pair of Pulse-Charged and Grounded Metal Nets on a Roadside Fence: A Safe and Unmanned Method for Controlling Kudzu Vine Growth

Yoshinori Matsuda, Norihiko Kajimura, Maou Hirai, Kazutaka Fujimoto, Hideyoshi Toyoda

American Journal of Civil Engineering and Architecture. 2025, 13(3), 53-61 doi:10.12691/ajcea-13-3-1