With the help of the flying sawyer beetles, the pine wood nematodes can spread far and wide; and with the help of the nematodes, when the sawyers bore through the wood of the pine trunks, they have much less sticky, indigestible pine resin to worry about, and can munch away to their hearts 'content.
靠著飛翔的天牛，線蟲無遠弗屆；依賴線蟲破壞松脂管，寓居樹幹上的天牛寶寶啃食木頭時不再擔心松脂黏嗆，可以大快朵頤。