Do not pay attention to the part displaying the pesticide that at that time was probably DDT. There are other organic ways to take care of pests. But notice how they took care of the garden without the use of fuel powered machines. They did have horses, though.
How to convince your husband and the the community old video
In the 70's during the oil embargo, there was also a TV show called "Victory Gardens" produced by WGBH and distributed by PBS.