Bug Scout 1979
Make Sure Tank Mixes Are Compatible
(Tom Turpin, Entomologist, Purdue University)
That combination would sure clean out your spray system!
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March 3, 1979

Thinking of tank mixing insecticides and fertilizers for rootworm control this year?

Generally, application of a combination of insecticide and fertilizer in the row does not control rootworms effectively.  Why?  Proper fertilizer placement is not an effective kind of placement for good rootworm control.

How about fertilizer and insecticide combinations applied broadcast?  They can work but insecticide rates must be increased three to four times over row treatments.

If fertilizer and insecticide combinations are to be used, make sure the products are compatible.  Place proper amounts of all products in a quart jar and mix.

If the products don't settle out or form layers in an hour, it's likely the mixture is compatible.

Remember, each load of fertilizer must be checked individually to insure proper mixing.

by Tom Turpin, Entomologist, Purdue University

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