家居草地防蟲小貼土
Posted on
August 1, 2021
by
Allen Lau
温哥華一到秋季,很多住戶的前後園草地被烏鴉大肆破壞,原兇乃日本甲蟲 (Japanese beetles)。這種昆蟲會於6月、7月在附近的草地上産卵,到大约9月孵化成幼蟲 (稱 grub) 鑽入泥土下吃草根準備過冬,這時幼蟲吸引動物如烏鴉、貍貓、臭鼬來捕捉,把草地都翻起得一榻糊塗。
想有效預防日本甲蟲的幼蟲卵在草地下生長和避免草地被動物破壞,可嘗試在整個7月份停止淋水灌溉前後園草地,令日本甲蟲在草地上產下的卵因草地太乾涸而孵不成蟲。當踏入8月開始下雨時,枯乾了的草地又再長出草來。這是天然不含化學的防蟲方法。
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