| 摘要 |
Cloth which crows dislike is provided to manufacture cloth in a yellow color or a black color which crows dislike, and emitting minus ion which crows dislike, thereby preventing access of crows to fruit trees. According to tests, the crows dislike a yellow color, a black color, and minus ion. A tape for making ribbons is dyed yellowly and is treated to emit minus ion by impregnating silica titan so that ribbons(1) made of the tape emit minus ion. A trunk(3) and branches(2) of a fruit tree are bound with the ribbons. |
