The lyrics for the "Anti-Garden Song" are by Eric Kilburn. Here's the full set:

Slug by slug, weed by weed
My Garden's got me really teed
All the insects love to feed
Upon my tomato plants
Sunburned face, scratched-up knees
My kitchen's choked with zucchinis
I'm shopping at the A&P
Next time I get a chance

The crabgrass grows, the ragweed thrives
The broccoli has long since died
The only things still left alive
Are some radishes & beans
My carrot plants are dead & gone
Hear the rabbits sing a happy song
Until you've weeded all day long
You don't know what boredom means.

You get up early, work til late
Watch moles & mice get overweight
They eat their dinners on a plate
From the hard work you have done
As ye sow, so shall ye reap
But I smell like a compost heap
I'm gonna get that lousy creep
Who said gardening was fun.

[The 'crow' verse in the Arlo link you provided is actually the second half of the second verse of the original "Garden Song" lyrics.]