Iowa Code
Chapter 200 - FERTILIZERS AND SOIL CONDITIONERS
Section 200.7 - Fertilizer-pesticide mixture.

200.7 Fertilizer-pesticide mixture.
Only those persons licensed under section 200.4 shall be permitted to add pesticides to commercial fertilizers. These persons shall at all times produce a uniform mixture of fertilizer and pesticide and shall register and label their product in compliance with both chapter 206 and this chapter.
[C58, 62, 66, 71, 73, 75, 77, 79, 81, §200.7]
2001 Acts, ch 24, §36