Spraying

Dangerous insects and dangerously contagious plant diseases are

strangers on the Kellogg farm. As precaution against any possible

attacks by pests however, Kellogg Pedigree Plants are sprayed frequently

during the growing season with Bordeaux mixture, arsenate of lead and

lime-sulphur. This prevents the possibility of contamination of any

nature.

Kellogg's Great Crops of Strawberries, and How to Grow Them the Kellogg Way · 第 44 / 195 题